college concepts

Student Radicals

There's still talk of revolution on campuses. But the 21st-century student has something very different from anarchy on the mind—think hydrogen cars and homes on the moon


A Wearable Motorcycle

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A More Efficient Hybrid

Reusing exhaust makes for a cleaner, more capable engine

One of the first things Eric Mattessich discovered in engineering school was that the typical internal combustion engine blows about 70 percent of the energy it creates straight out of the tailpipe in the form of heat. So, he wondered, could he adapt the kind of heat-recapturing mechanisms used to make powerplants more efficient to work on hybrid cars? “The technology has been around since the 1900s,” he points out. “It’s just that no one has put it into such a small package before.”

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Making a Hopping Robot

A pogo stick provides inspiration for more lifelike robotic motion

Pogo-Bot: Technology from iHop could go into toys and search-and-rescue robots.  U.C. San Diego/Jacobs School of Engineering
What started as an academic problem in a robotics class—how to build a robot that can hop like a pogo stick, roll on wheels, and walk up stairs—has grown into a concept that could one day help with search-and-rescue missions.

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Origami Optics

"Folding" light again and again provides a lot of magnification in a small space

In 2003, a program funded by the Pentagon’s Defense Advanced Research Projects Agency (Darpa) known as MONTAGE asked universities to find ways to squeeze unprecedented levels of magnification and resolution from small, super-thin lenses­—technology that could be used in future imaging devices for finding, tracking, and identifying military targets. With some advice from his adviser Joseph Ford, UCSD graduate student Eric Tremblay decided to use an old idea—“folding” light, or reflecting it over and over—to solve the problem.

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Handheld Spy Chopper

Hoboken students devise a tiny prototype scout copter

American soldiers have a bevy of hand-launched unmanned aerial vehicles to choose from these days, but nothing quite as nimble, lightweight and cheap as the Stevens Institute of Technology’s unmanned helicopter. The chopper would allow soldiers to check tall buildings for enemies by flying the camera-equipped, remote-controlled helicopter up staircases and into hidden corners before they go in. The four-pound prototype is made of a doughnut-shaped fiberglass shell 18 inches in diameter; inside, two counter-rotating 14-inch rotors create lift.

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The Future of Mobile Computing

A college class mines the Android for a set of apps that will change the way we phone

When MIT professor Hal Abelson heard that Google was about to release the software-development kit for its free, open-source Android mobile-phone operating system, he immediately decided to teach a class that would design programs for it. “Android is about to change people’s experience of what they can do with computers,” he says, because the computers in our cellphones will soon be the ones we use the most. These seven applications, developed by students in Abelson’s class, show what Android-equipped phones will be able to do.

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(Re)Building a Better Town

When a tornado leveled Greensburg, Kansas a class of college students took it on to help rebuild the town - with an eye on the environment

On May 4, 2007, a two-mile-wide F5 tornado destroyed 95 percent of Greensburg, Kansas, leaving two thirds of the town’s 1,500 inhabitants homeless. Many thought the town was finished. But in fact, the townspeople decided to rebuild using the greenest, most forward-thinking materials and construction methods possible.

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The Fuel-Cell Racing Go-Kart

A hydrogen-powered carbon-fiber go-kart built by 40 undergrads hits 60 mph and sports an ultra-capacitor for rapid acceleration

When Lawrence Tech's Element One team won top honors in the first-ever Formula Zero design competition—a contest created by two Dutch auto designers to get young engineers interested in hydrogen cars—they received two prizes: a fuel cell, and a deadline. The award meant they had the green light to build their design and race against other student teams in the Formula Zero hydrogen-powered go-kart race, which starts this month in the Netherlands. And just like that, they were off, scrambling to get their kart ready in time.

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

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