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Purdue University


— Science

Fabricated nanoantennas used to produce high-resolution holograms

By - November 24, 2013 4 Pictures
Holography is one of the more dramatic forms of photography, in which a three-dimensional image is stored on a photographic plate in the form of interference fringes. Researchers at Purdue University in Indiana have developed a different approach, in which a 3D image is stored in a structure of thousands of V-shaped nanoantennas etched into an ultrathin gold foil. The new approach dramatically shrinks the size of a hologram, potentially enabling photonic and plasmonic devices and optical switches small enough to be integrated into computer chips. Read More
— Good Thinking

RoboDesk motorized wheelchair tray puts mobile devices front and center

By - August 16, 2013 1 Picture
Although some wheelchair users could conceivably make use of devices like the GoPad, a researcher at Purdue University has developed a motorized wheelchair tray that looks to be a better option for giving wheelchair users convenient access to mobile devices. Employing a motorized arm, the “RoboDesk” can deploy or retract a tablet or lightweight laptop computer as needed. Read More
— Health and Wellbeing

Head-tracking ReadingMate system lets users read while they run

By - April 16, 2013 1 Picture
Attachable stands or (less affordable) devices like the WeBike make it possible to exercise both body and mind while pedaling on the spot, but those pounding away on a treadmill are pretty much limited to listening to music or zoning out in front of a TV screen to keep their minds occupied. That could change with a new system developed by researchers at Purdue University. Called ReadingMate, the system uses head-tracking technology to keep onscreen text bobbing along in unison with the runner’s eyes. Read More
— Science

Ping-pong gun fires balls at supersonic speeds

By - February 3, 2013 7 Pictures
The fastest serve ever recorded by a ping-pong player moved at about 70 mph (113 km/h). Professor Mark French of Purdue University's Mechanical Engineering Technology department and his graduate students, Craig Zehrung and Jim Stratton, have built an air gun for classroom demonstrations that fires a ping-pong ball at over Mach 1.2 (900 mph or 1,448 km/h). As the picture above shows, that's fast enough for the hollow celluloid balls to blow a hole through a standard paddle. Read More

Radiant fryer keeps the flavor but cuts the fat

We know how it is. You can’t help but like the taste of fried food, but ... darn it, the stuff just isn’t good for you. Well, you may soon be able to eat your fried food without quite so many worries. A food scientist at Indiana’s Purdue University has created a “radiant fryer” that results in fried food with all the flavor, but up to half the fat and fewer calories than would otherwise be present. Read More
— Science

New system detects touch and hand gestures on any surface

By - October 10, 2012 2 Pictures
The world may not be your oyster, but thanks to technology being developed at Indiana’s Purdue University, it may soon be your multi-touch screen. Researchers at that institution have created an “extended multitouch” system, that consists of a computer, video projector, and Kinect camera – the technology allows any surface to be transformed into a touchscreen interface, that can track multiple hands simultaneously. Read More
— 3D Printing

Software makes 3D-printed objects more structurally sound

By - September 20, 2012 2 Pictures
One of the great things about 3D printers is the fact that they allow anyone to become a manufacturer of small items. Unfortunately, however, they don't allow anyone to become a competent structural engineer – just because you can whip up a three-dimensional design on your computer doesn’t mean that it will translate into a sturdy physical object. That’s why researchers from Purdue University and Adobe's Advanced Technology Labs teamed up to create a program that automatically alters such designs, adding strengthening features to them before they get printed. Read More
— Health and Wellbeing

Body-heat-activated patch could pump medication through the skin

By - September 13, 2012 2 Pictures
Transdermal patches are currently used for the controlled release of medication, as long as that medication is made up of molecules that are small enough to be absorbed through the wearer’s skin. For solutions with larger molecules, scientists are looking into the use of patches incorporating arrays of skin-piercing microneedles. In many of these cases, however, the patches would require some sort of tiny battery-operated pump, to push the medication through the needles. Now, researchers from Indiana’s Purdue University have developed what could be an alternative – microneedle patches that use the wearer’s own body heat to deliver the drugs. Read More
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