Category: Features

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Andrew Barnard: A Quieter Future

Andrew Barnard works on a noise control survey on the R/V Blue Heron in Lake Superior.

Andrew Barnard shares his knowledge on Husky Bites, a free, interactive webinar this Monday, June 15 at 6 pm. Learn something new in just 20 minutes, with time after for Q&A! Get the full scoop and register at mtu.edu/huskybites.

Let’s say you wanted to quiet the loud auxiliary power unit on a large Abrams tank or any other loud noisy contraption. Would carbon nanotubes, thinner than a human hair, immediately come to mind? Probably not—but that is exactly the solution that Andrew Barnard has developed.

Why a nanotube speaker instead of the usual kind? It’s flexible and stretchable, with no moving parts, and you can put it practically anywhere. Plus, it weighs next to nothing. Four ounces of the material will cover an acre.

“Carbon nanotubes can oscillate their surface temperature almost instantaneously to produce noise canceling sound waves,” he explains. His technology—a coaxial active exhaust noise control system—is based on using a thin film of carbon nanotubes as a thermophone, or loudspeaker.

Why else use carbon nanotubes? “The material is flexible and stretchable, with no moving parts, and you can put it practically anywhere,” he says. “Plus, it weighs next to nothing. Four ounces of the material will cover an acre.”

“Building with Lego sets as a kid is probably what sparked my design and engineering mindset,” says Andrew Barnard. Fast forward about 30 years. Barnard is now an associate professor in the Department of Mechanical Engineering-Engineering Mechanics at Michigan Tech, specializing in the field of acoustics, vibration, and noise control engineering. He is the Director of the Great Lakes Research Center. He is advisor of Michigan Tech’s Strategic Education through Naval Systems Experiences (SENSE) Enterprise team. Last year he earned the Michigan Tech Distinguished Teaching Award. And he knows what it’s like to be a Michigan Tech student; he earned both his bachelor’s and master’s degrees in mechanical engineering at Tech before heading to Penn State for a PhD in acoustics.

Barnard is faculty advisor to Michigan Tech’s SENSE (Strategic Education through Naval Systems Experience) Enterprise. It’s a relatively new team. Students design, build, and test engineering systems with a focus on Navy applications in all domains: space, air, land, sea, and undersea. Like all of SENSE is open to students in any major.  The Nautical Emergency Rescue Device (NERD) is the team’s longest-running project. 

Q: What exactly is the NERD?

It’s like a mechanized life ring. If you’ve got someone 100 yards offshore, it takes away the danger of swimming out to them or the time it takes to get a boat. A life ring can only be thrown maybe 25 yards and if it’s windy it’s hard to get the life ring to the person. The NERD uses plastic PVC piping, low-cost remote vehicle propellers and the same controls used for remote-controlled planes and boats. The project is sponsored in part by the Keweenaw Bay Indian Community.

Students in the SENSE Enterprise designed and built a prototype of the NERD. “It’s sort of like a drone that can be used as a life raft, cheap and affordable enough that it can be kept at popular swimming beaches or in squad car trunks and used very quickly.”
The SENSE Enterprise logo, created by team members. Learn more about all 24 Enterprise teams at mtu.edu/enterprise

“I like to tell students on the SENSE team that I don’t do anything, they do everything, I’m just there to make sure they don’t go off the rails; to help them work through that design process, to watch them fail and help them pick themselves up and succeed.”

Andrew Barnard

Q: What is your research focus?

I do acoustics in general. What I’m interested in is making mechanical things quiet. I tend to work on any type of system with rotating equipment: ship propellers, hard drives, hydraulic systems. That is to say, anything moving that creates sound or is affected by sound.

“It’s a very customer-centered research field because everyone has a set of transducers built into their heads—ears.”We have lots of customers to talk to and lots of customer problems to fix because certain sounds drive people nuts.

We have the same problems under water. The overall background noise in the ocean has been rising steadily since WWII. How does that affect marine mammals and fish species? How does their behavior change based on ambient noise background? That’s what we’re trying to find out.


Andrew Barnard and his students work on developing flexible and stretchable nanotube speakers.

Q: How do you like to learn?

I had lots of great professors when I was a student here at Michigan Tech; Chuck Van Karsen is a good example. Chuck was a terrific professor, knew the material back and forth, but would take the time to teach it to you. He was always showing us how we could relate the pieces of an equation to things in real life that we touch every day. I thought those types of lessons were really helpful in learning the material, so I try to bring those kinds of things into my classes as well. I’ve had so many good professors it’s hard to single out just a few. 

“Everyone has a set of transducers built into their heads—ears.”

Andrew Barnard

Q: How did you know you wanted to be an acoustic engineer?

In college, I did several internships. Two of them taught me what I didn’t want to do, a very valuable lesson. The third one was working on noise control of tractors with John Deere. That sparked my interest in the field and propelled me on to graduate school to learn more. I’ve had mentors over the years that have been vital to keeping me pursuing the long and winding path to my current position. 

Q: Can you tell us more about your growing up? 

I was born and raised outside of Sturgeon Bay, Wisconsin, cradled between Lake Michigan and the bay of Green Bay.  I come from a long line of teachers. My mother was a kindergarten teacher and both my grandmothers were teachers. In my free time nowadays I enjoy hiking and waterfalling in the UP with my wife, Becky, entertaining our dog, and playing mediocre rounds of golf.

Andrew Barnard grew up in Sturgeon Bay, Wisconsin. Pictured here is the Ship Canal Pierhead Lighthouse, located just off the coastline of Lake Michigan

Learn More

Sound Man

Q&A with Michigan Tech Teaching Award Winner Andrew Barnard

Q&A with Great Lakes Research Center’s Andrew Barnard

Play SENSE Enterprise at Michigan Tech video
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SENSE Enterprise at Michigan Tech

Want to know more about Husky Bites? Read about it here.

Chad Deering: Predicting Volcanic Unrest Via Plant Life Stress

Vegetative stress at the foot of the Kīlauea Volcano in Hawaii

After a volcanic eruption, it can take years for vegetation to recover, and landscapes are often forever changed. But well before any eruption takes place, the assemblage of plant species on and around the volcano show signs of stress, or even die off. 

Chad Deering

Chad Deering, a volcanologist in the Department of Geological and Mining Engineering and Sciences at Michigan Technological University uses hyperspectral remote sensing data, acquired during an airborne campaign over Hawaii, to predict future volcanic eruptions on the Big Island. Deering and his team of graduate students from Michigan Tech are collaborating with scientists from the NASA Jet Propulsion Laboratory (JPL), and the University of New Mexico. 

“The replenishment of a shallow magma reservoir can signal the onset of an eruption at a dormant volcanic system, such as at Mauna Loa. It can also indicate significant changes in eruptive behavior at an already active volcano, as in what occurred at Kīlauea,” Deering says. 

“Rising magma ultimately results in a flux of volatiles through the ground, including carbon dioxide and sulfur dioxide. Active vent plumes of those same gases include particulate matter, even thermal energy, and those often enter the atmosphere, as well. “

By detecting and characterizing those fluxes and their effects on the health and extent of local vegetation, Deering is able to recognize significant changes in a volcano’s behavior. The result: a new, cost-effective way to forecast volcanic hazards and events.

“Monitoring vegetative stress on a volcano can potentially provide a much-needed early warning system for those living near and around volcanoes,” adds Deering. An estimated 500 million people are living in danger zones around the world.

“Our preliminary results indicate a strong correlation between emissions of carbon dioxide and hydrogen sulfide gas from soil—as well as the thermal anomalies—and different aspects of vegetative stress.” 

Deering’s team uses highly sensitive hyperspectral analysis to distinguish between effects of different gas species and thermal anomalies on variations in vegetative stress. “This is important as CO2 and H2S have different solubilities in magma. That allows us a semi-quantitative measure of the depth of magma as it rises.

With the results of their study, the team developed a remote-sensing automated detection algorithm that can be used in satellite-based platforms to detect volcanic unrest at volcanoes worldwide. 

“In particular, this tool will allow the scientific community to monitor volcanoes that are otherwise inaccessible due to heavy vegetation and/or their remote locations,” adds Deering. “It will also remove technical barriers such as establishing extensive and expensive seismic arrays that are difficult to maintain.”

NASA gathered the hyperspectral data over the course of a year, starting in 2017. Deering and his team are now analyzing more recent data, collected last year. “We want to determine whether we could have predicted the recent volcanic fissure emergence and activity taking place in Hawaii.”

Guy Meadows: Shipwrecks and Underwater Robots

Guy Meadows: “I love being on the waters of the Great Lakes and the oceans⁠—and having an engineering career that allows me to do what I love.

Guy Meadows generously shared his knowledge at Husky Bites, a free, interactive Zoom webinar hosted by Dean Janet Callahan. Here’s the link to watch a recording of his session on YouTube. Get the full scoop, including a listing of all the (60+) sessions at mtu.edu/huskybites.

Guy Meadows uses an underwater robot to chart new territories in the field of underwater exploration. But not just any old robot—one of the world’s best.

Its name is Iver3, and it has two dual processor computers on board, Wifi, GPS, water flow and speed of sound sensors, and the latest in sonar technology. It can dive 330 feet and cover 20-plus miles of water on missions up to 8 hours. It also has a high definition camera, lights and a satellite phone. These combined features make Iver an impressive research tool.

The IVER3. Consider it a robotic Aquaman. “Iver performs like a superhero,” says Meadows.

With Iver, Meadows and his team are able to provide ultra-high resolution acoustic images underneath the waters of the Great Lakes. “Whether it’s tracking underwater features, looking at shipwrecks, or mapping trout spawning beds, we can do this all much more precisely and in much greater detail than was ever possible,” he says.

Meadows is director of the Marine Engineering Laboratory, and the Robbins Professor of Sustainable Marine Engineering at Michigan Tech. His work with Iver is cutting edge. “Iver can obtain a ‘survey quality’ map of a swath of the bottom of Lake Superior,” he explains. “The map size depends on the altitude of the robot above the lake floor, but at ten meters above the bottom you can map an entire football field.”

“What we’re doing is seeing with sound waves. Acoustic energy shines on the target and illuminates it for us. Navy research vessels use active remote sensing, too,” he adds. “But we can see a lot more clearly with Iver.”

A sepia-toned looking image of a shipwreck at the bottom of Lake Superior. Both the ship and its shadow are visible at a high resolution of detail.
Here is the John J. Audubon, which sank in Lake Huron in 1854 in 180 feet of water and now within the NOAA’s marine sanctuary boundaries. “We’re seeing with sound waves,” Guy Meadows explains. “Acoustic energy illuminates the target and allows a higher resolution image of the shipwreck and its acoustic shadow.”

Michigan Tech students learn how to program Iver as part of their many classes onboard Agassiz, the university’s research vessel. “If we set up the geometry just right, we can get the highest possible quality sonar image,” Meadows explains.

“When we go out to look at shipwrecks in Lake Superior, we program Iver to fly a prescribed distance from the bottom of the lake, and a prescribed distance from the vessel. We can see both the image of the target vessel, and its acoustic shadow,” says Meadows. “The images are fantastic, but the shadows also provide a great deal of valuable information and detail.”

Q: When did you first get into engineering? What sparked your interest?

“I was born and raised in the City of Detroit. I went to Detroit Public Schools, and when I went to college I had to work to make ends meet. I got a job as a cook in the dorm, and and eventually worked my way up to lead cook. I was cooking breakfast for 1,200 people each morning. One of my fellow classmates was studying engineering, too. He had a job working for a professor doing research on storm waves and beaches. I had no idea I could be hired by a professor and get paid money to work on the beach! I quit my job in the kitchen soon after, and went to work for that professor instead. I had been a competitive swimmer in high school, and the beach was where I really wanted to be. When I graduated with my degree, having grown up in Detroit, I went to work for Ford. I have to thank my first boss for assigning me to work on rear axle shafts. After about two months, I called my former professor, to see if I could come back to college.

My advice for students just starting out is to spend your first year exploring all your options. Find out what you really want to do. I had no idea I could turn a mechanical engineering degree into a job working on the beach. Turns out, I could⁠—and I’m still doing it today.

Q: What do you like to do when you’re not on the beach or out on the water?

Having grown up in Detroit, I have had the opportunity to live, work and grow in a very diverse community. While as a faculty member at the University of Michigan, I was part of a great team that started the M-STEM Academies and became its founding director. The M-STEM mission is “to strengthen and diversify the cohort of students who receive their baccalaureate degrees in science, technology, engineering, and mathematics (STEM), with the ultimate goal of increasing the number and diversity of students who are well prepared to seek career opportunities or to pursue graduate or professional training in the STEM disciplines in the new global economy.” This effort has been a very important part of my journey.

More about Guy Meadows

Throughout his career Guy Meadows has influenced policy and explored societal impacts of environmental forecasting for coastal management, recreational health and safety, and regional climate change.

Guy Meadows on the dock of the Great Lakes Research Center at Michigan Tech, in front of a large, bright yellow buoy (about the size of a very small compact car) that is used to collect data in Lake Superior.
Guy Meadows, Director of the Marine Engineering Laboratory, and Robbins Professor of Sustainable Marine Engineering at Michigan Tech.

After graduation from Purdue University with PhD in Marine Science in 1977, he joined the faculty of the University of Michigan College of Engineering, where he served as professor of physical oceanography for 35 years. During that time, Meadows served as director of the Ocean Engineering Laboratory, director of the Cooperative Institute for Limnology and Ecosystems Research (NOAA, Joint Institute), director of the Marine Hydrodynamics Laboratories.

Meadows joined Michigan Tech in June of 2012, to help establish the new Great Lakes Research Center. His primary goal is to blend scientific understanding and technological advancements into environmentally sound engineering solutions for the marine environment, through teaching, research and service.

His research focuses on geophysical fluid dynamics, with an emphasis on environmental forecasting, full-scale Great Lakes and coastal ocean experimental hydrodynamics.

His teaching reaches beyond the University to less formal settings and includes five nationally televised documentaries for the History and Discovery Channels.

Read & View More

Huskies Help Solve Sunken Minesweeper Mystery

Subsurface Vehicles at Michigan Tech’s Great Lakes Research Center

Be Brief: Shipwreck

Freshwater Flights Reveal What Lies Beneath

Play To Protect and Preserve video
Preview image for To Protect and Preserve video

To Protect and Preserve


Becky Ong: Color-Changing Potions and Magical Microbes

Miscanthus, otherwise known as Switchgrass, a perennial grass, can be used for making biofuels. “But plant materials are very complex,” says Dr. Rebecca Ong. “We’ve only scratched the surface of what is in there. We have much more to learn.”

Dr. Becky Ong generously shared her knowledge on Husky Bites, a free, interactive Zoom webinar hosted by Dean Janet Callahan. Here’s the link to watch a recording of her session on YouTube. Get the full scoop, including a listing of all the (60+) sessions at mtu.edu/huskybites.

Fungus Breath? It’s a good thing!

Enter the magical world of herbology and potions with Dr. Becky Ong. Learn how to make your own color-changing potion and use it to find the best conditions to generate and collect fungus breath. Discover the science behind the magic, what makes plants and microbes so cool. 

Dr. Becky Ong in her lab at Michigan Technological University. She is both a biologist and a chemical engineer.

Dr. Ong, an assistant professor of chemical engineering, runs the Biofuels & Bio-based Products Lab at Michigan Tech, where she and her team of student researchers put plants to good use.

“As engineers we aren’t just learning about the world, but we’re applying our knowledge of the world to make it a better place,” she says. “That is what I love. As a chemical engineer, I get to merge chemistry, biology, physics, and math to help solve such crazy huge problems as: how we’re going to have enough energy and food for everyone in the future; how we’re going to deal with all this waste that we’re creating; how to keep our environment clean, beautiful and safe for ourselves and the creatures who share our world.” 

For this session of Husky Bites, you’re going to want to gather some common household supplies. No time for supplies? Just watch it happen in Dr. Ong’s kitchen live via Zoom. Learn the details at mtu.edu/huskybites

Dr. Ong, a born Yooper,  is a Michigan Tech alumna. She graduated in 2005 with two degrees, one in Biological Sciences, and the other in Chemical Engineering. She went on to Michigan State University to earn a PhD in Chemical Engineering in 2011. Growing up, she was one of the youngest garden club enthusiasts in northern Michigan, a science-loving kid who accompanied her grandparents to club events like “growing great gardens” or “tulip time.” When she wasn’t tending the family garden, she was “mucking about in nature” learning from parents who had both trained as foresters.

“We conduct many small-scale experiments in the lab—on a variety of plant materials grown under different environmental conditions. We want to determine just how those conditions affect the production of biofuels.”

Q: When did you first get into engineering? What sparked your interest?

I first became interested in engineering in high school when I learned it was a way to combine math and science to solve problems. I loved math and science and thought that sounded brilliant. However, I didn’t understand at the time what that really meant. I thought “problems” meant the types of problems you solve in math class. Since then I’ve learned these problems are major issues that are faced by all of humanity, such as: How do we enable widespread access to clean energy? How do we produce sufficient amounts of safe vaccines and medicine, particularly in a crisis? How do we process food products, while maintaining safety and nutritional quality? As a chemical engineer I am able to combine my love of biology, chemistry, physics, and math to create novel solutions to society’s problems. One thing I love about MTU is that the university gives students tons of hands-on opportunities to solve real problems, not just problems out of a textbook (though we still do a fair number of those!). These are the types of problems our students will be solving when they go on to their future careers.

Q: Tell us about yourself. What do you like to do outside the lab?

I’m a born Yooper who grew up in the small-town northern Lower Peninsula of Michigan and came back to the UP for school.

I love the Copper Country and MTU students so much, I managed to persuade my husband to come back to Houghton 5 years ago. Now I live near campus with my husband, 4-year-old daughter, our Torbie cat and our curly-haired dog.

We read science fiction and fantasy stories; play board games; kayak on the canals and lakes while watching for signs of wildlife; make new things out of yarn, fabric, wood, and plastic (not all at the same time)—and practice herbology (plants and plant lore) and potions in the garden and kitchen. 

Huskies in the Biofuels & Bio-based Products Lab at Michigan Tech

Biofuels and Dry Spells: Switchgrass Changes During a Drought
Sustainable Foam: Coming Soon to a Cushion Near You

Want to know more about Husky Bites? 

Read about it here.

Husky Bites is BYOC: Bring Your Own Curiosity to this Family-Friendly Free Webinar, Mondays this Summer at 6 pm EST.

Biofuels and Dry Spells: Switchgrass Changes During a Drought

High yields. A deep root system that prevents soil erosion and allows for minimal irrigation. The ability to pull large amounts of carbon out of the air and sequester it in the soil. Beneficial effects on wildlife, pollination, and water quality. Perennial grasses, such as switchgrass and elephant grass, are wonderful in many ways and especially promising biofuel feedstocks. But that promise, a team of researchers discovered, may evaporate during a drought.

“The characteristics of any living organism are linked to their genetics and the environment they experience during growth,” says Rebecca Ong, an assistant professor of chemical engineering at Michigan Technological University. “Bioenergy production is no different. It’s a chain where every link, including the feedstock characteristics, influences the final product—the fuel.”

Ong is both a chemical engineer and a biologist. She holds a unique perspective on how the bioenergy system fits together, which comes in handy, especially now, in light of a recent puzzling discovery.

“Plants have lower biomass yields during a drought. You understand this when you don’t need to mow your lawn after a dry spell,” she explains. “The same is true with switchgrass. Besides the expected effect on crop yields, we were completely unable to produce fuel from switchgrass—using one of our standard biofuel microbes—grown during a major drought year.”

“At the lab scale this is an interesting result. But at the industrial scale, this could potentially be devastating to a biorefinery,” she says.

Ong, her research team, and colleagues within the Great Lakes Bioenergy Research Center (GLBRC), a cross-disciplinary research center led by the University of Wisconsin–Madison, are making efforts to understand, pulling in researchers from across the production chain to study the problem. 

Ong is the only Michigan Tech faculty member in the GLBRC. “Our team was able to identify some of the compounds formed in the plant in response to drought stress, contributing to the inhibition. But plant materials are very complex. We’ve only scratched the surface of what is in there. We have much more to learn.”

The first step, she says, is to understand what inhibits fuel production. “Once we know that, we can engineer solutions: new, tailor-made plants with improved characteristics, as well as modifications to processing, such as the use of different microbes, to overcome these issues.”

Ong points out that in the U.S., gasoline is largely supplemented with E10 ethanol, derived from sugars in corn grain. However renewable fuels can be produced from any source of sugars—including perennial grasses, which if planted on less productive land do not conflict with food production.

“Ultimately, if we are to replace fossil energy in the long term, we need a broad alternative energy portfolio,” says Ong. “We need industry to succeed. We are engaging in highly collaborative research to ensure that happens.”

Brad King: Space, Satellites and Students

Pictured: the Auris signal trace, soon to be explained by Dr. Lyon (Brad) King on Husky Bites.

Lyon (Brad) King shares his knowledge on Husky Bites, a free, interactive webinar this Monday, May 18 at 6 pm. Learn something new in just 20 minutes, with time after for Q&A! Get the full scoop and register at mtu.edu/huskybites.

Oculus deployed! In June 2019 Michigan Tech alumnus and Air Force Research Laboratory Space Systems Engineer Jesse Olson, left, celebrates with Aerospace Enterprise advisor Brad King. King’s son Jack was also on hand for the momentous occasion of the launch.

Turning dreams into reality is a powerful motivator for Lyon (Brad) King. He’s the Richard and Elizabeth Henes Professor of Space Systems in the Department of Mechanical Engineering-Engineering Mechanics, and leader of Michigan Tech Aerospace—a collection of research, development, and educational labs dedicated to advancing spacecraft technology.

King specializes in spacecraft propulsion — and the launching of student careers. He mentors a large team of graduate students in his research lab, the Ion Space Propulsion Lab, where teams develop next-generation plasma thrusters for spacecraft. Off campus, at the MTEC SmartZone, King is cofounder and CEO of the fast-growing company, Orbion Space Technology.

As the founder and faculty advisor of Michigan Tech’s Aerospace Enterprise, King empowers undergraduate students to design, build, and fly spacecraft, too. One of the team’s student-built satellites (Oculus) is now in orbit; their second small satellite (Stratus) is due to launch in March 2021, and a third (Auris) now in process.

“The desire to explore space is what drives me. Very early in my studies I realized that the biggest impediment to space exploration is propulsion. Space is just so big it’s hard to get anywhere. So I dedicated my professional life to developing new space propulsion technologies.”

Professor Lyon (Brad) King, Michigan Tech

King has served as the Enterprise advisor ever since a couple of students came to him with the idea to form a team nearly two decades ago. “My current role now is more that of an outside evaluator,” he says. “The team has taken on a life of its own.”

Like all Enterprise teams at Michigan Tech, Aerospace Enterprise is open to students in any major. “It’s important for students to learn how to work in an interdisciplinary group,” says King. “In the workplace, they will never be on a team where every member has the same expertise. To design, build, manage and operate a satellite requires mechanical, electrical, computer science, physics, materials, everything — it really crosses a lot of boundaries and prepares them for a career.”

Adds King: “Michigan Tech has a history and reputation for hands-on projects, particularly its Enterprise Program. Our students don’t just write papers and computer programs. They know how to turn wrenches and build things. That’s been deeply ingrained in the University culture for years.” 

Last, but not least: “Aerospace Enterprise has a leadership and management hierarchy that is self-sustaining,” says King. “Current leaders are constantly working to mentor their successors so we have continuity from year-to-year.” 

“Dr. King provides excellent mentoring and high-level direction, but does not give students all the answers. It’s up to the students to figure it out. We work in small teams, which forces us to take on more responsibility. We’re thrown off the deep end. It’s hard, but worth it.”

Sam Baxendale, spoken as a former student. He’s now an engineer at Orbion Space Technologies
The Aerospace Enterprise team at Michigan Tech enjoys some well-deserved downtime at McLain State Park on Lake Superior.

The New Space Era

Commercialization is driving aerospace expansion in Michigan and across the nation. “We were ahead of it,” says King. “We certainly were feeding it and played a part in causing it. MTU’s products — which are our graduates — are out there, making this happen.” Aerospace Enterprise alumni are engineers, managers, technology officers and research scientists in a diverse array of aerospace-related industries and institutions, from the U.S. Army, U.S. Air Force and NASA to SpaceX, both startups and major manufacturers. King himself has hired several of his former students at Orbion Space Technology.

“The desire to explore space is what drives me,” says Lyon (Brad) King, Henes Professor of Space Systems at Michigan Technological University

Q: When did you first get into engineering? What sparked your interest?

A: I have always been interested in building things — long before I knew that was called “engineering.” I don’t recall when I became fascinated with space but it was at a very early age. I have embarrassing photos of me dressed as an astronaut for halloween and I may still even have an adult-sized astronaut costume somewhere in my closet — not saying. The desire to explore space is what drives me. Very early in my studies I realized that the biggest impediment to space exploration is propulsion. Space is just so big it’s hard to get anywhere. So I dedicated my professional life to developing new space propulsion technologies. There is other life in our solar system. That is a declarative statement. It’s time that we find it. The moons of Jupiter and Saturn hold great promise and I’m determined to see proof in my lifetime.

Q: Can you tell us more about your growing up? Any hobbies?

A: I was born and raised just north of Houghton (yes, there actually is some habitable environment north of Houghton). I received my BS, MS, and PhD from the University of Michigan. I spent time traveling around the country working at NASA in Houston, NIST in Boulder, and realized that all of my personal hobbies and proclivities were centered around the geography and climate of northern Michigan. I returned in 2000 and began my career as a professor at MTU. I enjoy fishing, boating, hockey, and spent more than 15 years running my dogsled team all over the Keweenaw Peninsula.


Michigan Tech’s Three Student-Built Satellites

OCULUS-ASR, a microsatellite now in orbit, provides new info to the Air Force. “It is the first satellite mission dedicated to helping telescope observatories understand what they are imaging using a cooperative target. “It’s a very capable little vehicle. There’s a lot packed into it.”

Aerospace Enterprise rendering of Stratus, a miniaturized satellite developed by the team. It will be launched from the International Space Station in March 2021.

Not hard to see how CubeSats get their name. Stratus is a 3U spacecraft, which means it’s composed of three units. This photo was taken in fall 2019.

STRATUS, a miniaturized satellite, will image atmospheric clouds to reconcile climate models. It’s funded by NASA’s Undergraduate Student Instrument Program and the CubeSat Launch Initiative. STRATUS will be carried to the International Space Station inside the SpaceX Dragon cargo capsule by a Falcon 9 rocket. The Dragon will dock to the ISS where STRATUS will be unloaded by the crew. STRATUS will then be placed in the Kibo Module’s airlock, where the Japanese Experiment Module Remote Manipulator System robotic arm will move the satellite into the correct position and deploy it into space. All this on March 21. Stay tuned!

Aerospace Enterprise rendering of its newest microsatellite, Auris, now in the works.

AURIS, a microsatellite, is designed to monitor and attribute telecommunications signals in a congested space environment. Funding comes from the Air Force Research Lab (AFRL)’s University Nanosatellite Program.

Huskies in Space

Michigan Tech’s Aerospace Enterprise team designed their own logo.

Learn more about the team and its missions on Instagram and Facebook.

Find out how to join.

Read more about Aerospace Enterprise in Michigan Tech News:

And Then There Were Two: MTU’s Next Student Satellite Set to Launch in 2021

Enterprise at MTU Launches Spacecraft—and Careers

Countdown. Ignition. Liftoff. Huskies in Space!

Mission(s) AccomplishedMichigan Tech’s Pipeline to Space

Winning Satellite to be Launched into Orbit

My Mother’s Hands

Author's hand outstreched over a jigsaw puzzle on a card table, with Husky dog far in the background,  to show her knuckly fingers and her mother's ring

Okay, so I have my mother’s hands. May she rest in peace. For her fiftieth birthday, many years ago, us four daughters decided to get her a nice piece of jewelry. We shopped, and together we tried out a bunch of rings. 

My other sisters’ hands are more delicate than mine. My hands call to mind a worker, or farmer, or crafter, hands with knuckles and calluses. While shopping, we decided my hands were the best model for the ring for our mother, and so I was the odd model on this shopping expedition, with the jewelry merchants looking at me with eyebrow askance. With their beautifully groomed hands they examined mine, seeking different shapes and kinds of rings to try on, to find something that would balance my knuckly fingers.

One day, many years later, I was inside watching some commotion in the driveway. My stepson needed to add water to his radiator. The cap was stuck. He, his dad, and a friend were standing around the car, hood up, scratching their heads.

Watching this from inside the house, I figured it wouldn’t hurt to have a go. Grabbing a kitchen towel, I wandered outside. Approaching the car, I asked about the problem, then casually swooped in with my towel and my mother’s hands. 

I doubled up the kitchen towel over the four-pronged, blunt radiator knob, grasped it with my dominant hand, then added my other hand over top, all fingers locking in to seal the strength. I locked wrists, forearms, elbows to my shoulders and slowly rotated my torso. Of course the cap gave way. I straightened up, pulled off the towel, brushed off the thanks, and walked back into the house.

From my dad, I got the engineer’s outlook, and from my mom these strong, wise hands. From both of them, I was given ample opportunity to try anything, fail, and try again. 

Where did I learn to do this, I wonder? To not use my wrist and hand alone? The feeling wasn’t pride exactly, but closer to gratitude—for my parents who taught me to roof and landscape, and to use my head to solve problems. From my dad, I got the engineer’s outlook, and from my mom these strong, wise hands. From both of them, I was given ample opportunity to try anything, fail, and try again. 

I am now an engineering professor and have been given tremendous responsibility as a dean. Problem solving is what we teach engineering students, mingled with theory and design. We also give them ample opportunity to learn by doing. Yet, the largest part of their problem-solving “knack,” will come from the projects they already did, well before arriving in college.

All the tasks given to a child, the forced labor assigned to teens, and the challenges you take on as an adult, add up. I remember Dad giving instructions with no more detail than, “Take down this wall,” and I could not have wished for a better engineering teacher. We lost him too soon, when he was just 48, to cancer.

I wear her ring now and it fits me well. I could never fill her shoes, but I can fill her gloves. Around the blister earned from raking this weekend and the snagged skin from a thorn, I look at my mother’s hands and imagine them still shuffling and playing cards, the way she did when our work was through. 

My mother passed ten years ago this month. Miss you Mom! Still feel your strong—and gentle—touch.

Do you have your own stories about your mom, or dad, to share? Please email me. I would love to hear them, callahan@mtu.edu.

Janet Callahan, Dean
College of Engineering
Michigan Tech


Husky Bites: Join Us for Supper This Summer (Mondays at 6)!

A real Husky Dog sitting at a table covered with a white tablecloth, with a plate and bowl full of dog biscuits in front of it The dog is wearing a red and black checked flannel shirt, and wearing black horn-rimmed glasses

Craving some brain food? Join Dean Janet Callahan and a special guest each Monday at 6 p.m. EST for a new, 20-minute interactive Zoom webinar from the College of Engineering at Michigan Technological University, followed by Q&A. Grab some supper, or just flop down on your couch. This family friendly event is BYOC (Bring Your Own Curiosity). All are welcome. Get the full scoop and register⁠—it’s free⁠—at mtu.edu/huskybites.

The special guests: A dozen engineering faculty have each volunteered to present a mini lecture for Husky Bites. They’ll weave in a bit of their own personal journey to engineering, too.

“We created Husky Bites for anyone who likes to learn, across the universe,” says Callahan. “We’re aiming to make it very interactive, with a “quiz” (in Zoom that’s a multiple choice poll), about every five minutes. “Everyone is welcome, and bound to learn something new. We are hoping entire families will enjoy it,” she adds. “We have prizes, too, for near perfect attendance!”

Topics include: Space, Satellites, and Students; Shipwrecks and Underwater Robots; A Quieter Future (Acoustics); Geospatial Wizardry; Color-Changing Potions and Magical Microbes; Scrubbing Water, There’s Materials Science and Engineering, in my Golf Bag, Biomedical Engineering the Future, How Do Machines Learn, Robotics, Math in Motion, and more. Get the full scoop and register (it’s free) at mtu.edu/huskybites

The series kicks off on Monday, May 11 with a session from GMES professor and chair John Gierke, a self-professed “Yooper graduate of the school of hard rocks.”

In his Husky Bites session, “How the Rocks Connect Us,” Gierke will talk about how the geology of the Keweenaw is more exposed and accessible. “The experience of spending time in the Copper Country is enhanced if you understand more about the forces of nature that formed this beautiful place,” he says. “The processes that led to the geological formations that lie beneath us and shaped our landscapes are what dictated many of the natural resources that are found where each of us live.” Gierke was born in the EUP (the Soo, aka Sault Sainte Marie) and graduated from Michigan Tech. He will provide practical explanations for why the mines are oriented as they are, where water is more prevalent—and the geological features that lead to waterfalls. You can read all about it here.

Other guests on Husky Bites include engineering faculty L. Brad King, Gordon Parker, Rebecca Ong, Guy Meadows, Andrew Barnard, Tony Pinar, Daisuke Minakata, Jeremy Bos, Joe Foster, Smitha Rao, and Steve Kampe.

Want to see the full schedule? Just go to mtu.edu/huskybites. You can register from there, too.

Everything has to be made out of something. The question is out of what—and how do we make it?

Ferrosilicon inoculant is added to a stream of liquid iron. Sparks fly as the inoculant reacts with the liquid iron.

These are the questions engineers at Michigan Tech have been asking since the university’s founding in 1885. It’s the task that graduates from the Department of Materials Science and Engineering (MSE) have excelled at since its inception as one of the two founding departments at the Michigan School of Mines in Michigan’s Upper Peninsula in 1885. Back then, the department was known as Metallurgy, and its focus was on ways to extract valuable metals, such as copper or iron, from their naturally occurring states within minerals and underground deposits.  

Today the discipline of Materials Science and Engineering finds ways to use the fundamental physical origins of material behavior—the science of materials—to optimize properties through structure modification and processing, to design and invent new and better materials, and to understand why some materials unexpectedly fail. In other words, the engineering of materials.  

The Michigan Tech campus is located on the Portage Canal near Lake Superior.

Contemporary materials engineers (aka MSEs) work with metals and alloys, ceramics and glasses, polymers and elastomers; electronic, magnetic, and optical materials; composites, and many other emerging materials. That includes materials such as 2-D graphene, nanomaterials and biomaterials, materials that have been 3D printed or additively manufactured, smart materials, and specialized sensors.

Materials Science and Engineering (MSE) connects and collaborates with many other disciplines. The products and processes developed by MSEs are used by others to make new or improved products.

Materials Science and Engineering is inherently interdisciplinary—students interact and collaborate with students and scientists in other engineering disciplines, and also science disciplines, including chemistry and physics. 

Despite its legacy and historical central importance to all engineering endeavors, the materials discipline is relatively small compared to other engineering disciplines such as mechanical, electrical, civil, and chemical engineering. In fact, many universities do not have stand-alone materials departments.

“But this is one of the best aspects of being an MSE,” says Michigan Tech MSE Department Chair Steve Kampe, “Class sizes are small, and students build strong networks with classmates, the faculty and staff, and with likeminded colleagues from other universities from around the world,” he says. “It enables strong learning and collaborative environments with lots of personalized interaction and one-on-one mentoring.”

Not only is Kampe a member of the Michigan Tech faculty, he is also an alumnus, earning a Bachelor’s, Master’s, and PhD in Metallurgical Engineering, all from Michigan Tech. He joined academia after working in the corporate research laboratory for a major aerospace company, where scientists and engineers developed new products and technologies for the company’s future.

Examining material structure using the scanning electron microscope.

At Michigan Tech, the MSE department manages the university’s suite of scanning electron and transmission electron microscopes, including a unique, high resolution scanning transmission FEI Titan Themis. The facility also maintains excellent X-ray diffraction, X-ray photoelectron spectroscopy, and Auger electron spectroscopy capabilities. In the university’s Institute of Material Processing (IMP), also led by MSE faculty, processing capabilities include melt processing, deformation processing, microelectronic fabrication, and particulate (powder)-based processing capabilities. All students use these world-class facilities—even as undergraduates.

Students at Michigan Tech can join one of 24 Enterprise teams on campus to work on real projects, for real clients. Students invent products, provide services, and pioneer solutions. Advanced Metalworks Enterprise (AME) is a popular enterprise among MSE students. Small groups within the AME team take ownership of metallurgical manufacturing projects, working closely with industry sponsors.

The Advanced MetalWorks Enterprise team, AME, at Michigan Technological University

“Being on an Enterprise team helps students build a résumé, develop teamwork skills, form professional relationships, and learn what to expect in the workforce,” says Kampe. “We’re grateful for our corporate sponsors’ help in offering students an opportunity to take textbook skills from the classroom and apply them in practical ways, to experiment, and get results.”

MSE students also get involved in Materials United (MU), a student professional organization that exposes them to all aspects of Materials Science and Engineering—learning about industry, sharing research, developing personal skills, participating in professional societies, and traveling to international conferences. 

As one example of student success, MSE students from Michigan Tech won first place in ASM International’s Undergraduate Design Competition the last two years in a row, based on entries from their capstone senior design projects. Last year, the winning entry was based on a project entitled “Cobalt reduction in Tribaloy T-400” sponsored by Winsert, Inc. of Marinette, Wisconsin.

Microstructure of Tribaloy T-400 containing a Co solid solution, a C14 Laves phase, and a Co solid solution-C14 Laves eutectic phase.

“Winsert currently uses an alloy similar to Tribaloy T-400, a cobalt-based alloy, in the production of internal combustion engine valve seats,” Kampe explains. “Cobalt is an expensive element with a rapidly fluctuating price, due to political instability in the supplier countries. The alloy contains approximately 60 wt. percent cobalt, contributing significantly to its price. There are also serious sustainability and environmental implications associated with the use of cobalt—both positive and negative,” he says. “Cobalt is one of the elements used as an anode material for lithium ion batteries that are now under heavy development for electric vehicles.” 

The student team investigated the replacement of cobalt with other transition elements such as iron, nickel, and aluminum using thermodynamic modeling. “All MSE senior design projects at Michigan Tech use advanced simulation and modeling tools, experimental calibration, and statistical-based analyses of the results,” notes Kampe. “The Winsert project utilized software called CALPHAD (Pandat) with a form of machine learning —Bayesian Optimization—to identify new and promising alloy substitutions. Such advanced techniques are rarely introduced at the undergraduate level in most other MSE programs.”

“Our department’s small size allows meaningful student involvement in hands-on laboratory activities, personal access to facilities, real participation in leading-edge projects, and close networking with peers, faculty and staff, alumni, and prospective employers,” adds Kampe. “The benefits of being a part of a strong professional network continues after graduation. Our strong learning community becomes our students’ first professional network after they graduate. It gives them a strong early foundation for a great career.”

A metal matrix composite created by infiltrating magnesium into a carbonized wood lattice. In this senior design project, the MSE team collaborated with Michigan Tech’s College of Forest Resources and Environmental Science.

Due to the importance of materials to the success of nearly all engineered products, MSEs enjoy employment opportunities in a wide range of industries and in a variety of functions. For example, MSEs are prominent within the automotive, aerospace, electronics, consumer products, and defense industries, performing duties such as new material design, material substitution and optimization, manufacturing science, and material forensics, such as material identification and failure analyses. 

MSE undergraduate students Kiaya Caspers, Jared Harper, Jonah Jarczewski, and Pierce Mayville.

“There are also rich opportunities in corporate and government research and development, since new products and functionalities often start with advancements in our understanding of materials, or in our ability to process them,” says Kampe. “MSE graduates from Michigan Tech enjoy nearly 100 percent placement at graduation due not only to the reputation of the department, but also due to the fact that just about all engineering-oriented companies rely on materials for their products.”

COVID-19: At Michigan Tech, How One Big Ship is Turning Itself Around.

R.L Smith Building, home to the Department of Mechanical Engineering-Engineering Mechanics. “Like so many universities, we have a great culture of kindness here at Michigan Tech, says Chair William Predebon. “We’re all going through this together.”

Bill Predebon, longtime chair of Mechanical Engineering-Engineering Mechanics at Michigan Tech, recently sent an email to all the students in his department. He asked three questions: “What went right? What went wrong?” And then, “Are you having any issues with tools?”

“Almost immediately I received 80 responses from undergraduates,” he said. “It’s important to solicit feedback directly from students while they are still in the midst of it.”

As universities across the state of Michigan and across the nation moved their courses to remote instruction to help slow the spread of COVID-19, Predebon had to act fast. Getting 1,736 students, and 55 faculty members entirely online in just four days was no small task.

“We’re a large ME department, one of the largest in the nation, but because of our strong sense of community of Michigan Tech, our culture of kindness, there was an immediate sense of responsibility to respond in a coordinated way—the best possible way,” says Predebon.

Predebon turned to ME-EM Associate Chair Jeff Allen, who quickly became the department’s conduit for using online tools.

“Jeff investigated the technology, so our faculty wouldn’t have to do that,” Predebon explains. “The majority had never taught online before—only about a dozen of our faculty had taken Michigan Tech’s online learning certification course.”

ME-EM Department Chair Bill Predebon stands in an empty lab classroom in the R.L. Smith Building on campus, with some equipment in the backround.
“Dealing with open-ended solutions, where there isn’t one right answer, is a key part of the design of our Mechanical Engineering Practice courses,” says Predebon. “I hope those problem-solving skills are helping our students, as they adjust to learning from home.”

“The first thing I did was to rephrase the information,” says Allen. “It had been presented by type of software, but not by function.” ME-EM faculty with online teaching experience also started helping, making phone calls and emailing back and forth with their colleagues.

“It’s really hard to give a lecture in an empty room. There’s zero feedback,” says Allen. “We were showing our faculty how to use the online lecture tools on campus. But then, within a day or two, as we realized what might be coming, I began urging faculty to gather all they’d need to teach their courses from home.”

Allen quickly bought webcams for faculty, along with headsets and microphones. “Everyone seemed to have a different kind of technology at home. Webcams sold out very fast online. All around the country, everyone was doing the same thing,” he said.

Four years ago, the Department eliminated traditional mechanical engineering labs and replaced them with hands-on Mechanical Engineering Practice (MEP) courses I, II, III and IV. The MEP courses are designed to be adaptable so that new subjects can be embedded as technologies advance. But how to virtualize these intensive hands-on courses?

“Our Graduate Teaching Assistants really went above and beyond. Udit Sharma and JJ Song recorded a half semester’s worth of video demonstrations in less than a week for the second MEP. There were similar efforts by faculty, staff and graduate students for the other three MEP courses,” said Allen. “They did an amazing job.”

Meanwhile, another group was busy virtualizing the ME-EM department’s Engineering Learning Center, an idea suggested by academic advisor Ryan Towles. Aneet Narendranath, a senior lecturer in mechanical engineering, spearheaded the effort.

“Our learning center supports our core courses—Thermodynamics, Statics, Dynamics, and Mechanics of Materials,” says Predebon. “Students taking these fundamental courses can now access peer tutoring online, from home.”

“Michigan Tech’s Center for Teaching and Learning (CTL) shipped out document cameras to all our peer tutors. Then Dr. Narendranath coordinated a trial run—trying out the system as we put it into place,” says Allen. “Several faculty volunteered as guinea pigs, to let student tutors practice the system. We found subtle, odd things we weren’t expecting. Aneet and Ryan practiced together quite a bit more before we sent a message about it to all our students.”

Allen’s emphasis now has switched almost entirely to students. “At home, just like our faculty, their technology and tools vary. Some things really surprised us. For instance, very few students actually have a printer.”

Jeff Allen is the John F. and Joan M. Calder Professor in Mechanical Engineering. He is also the Associate Chair and Director of Undergraduate Studies in the ME-EM Department.

“One of our students had no computer at home,” adds Predebon.”When I found out, I was able to get a computer into her hands, but it took a few days. I thought it took a long time. She said she thought it was fast.”

“Most students are doing well now, especially those with a strong internet connection,” says Allen. “Other students relied much more on our university system. We’ve been going back and forth to iron out the bugs. Faculty are very flexible with student deadlines,” says Allen.

“The situation has shown the tenacity and caring of our faculty,” says Predebon. “One faculty member herself lives in an area with poor internet access. She tried many things to improve it, to no avail. To solve the problem she drives to a university building and parks in front to upload lessons for her students, and download their work. The building is closed, but she can still log in to the internet from her car. She can get back to her family faster that way, too. She has young children at home.”

“It has been a fantastic effort. Now we want to get through this semester. We’ll see what the summer holds, and this coming year,” adds Predebon. “We’ll take it as it comes.”