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Purdue University

— Environment

Dwarf plants could reduce demands for water, fertilizer, nutrients and pesticides

By - May 16, 2012 1 Picture
Aside from arable land, most farm crops require significant amounts of water, fertilizer, nutrients and pesticides to grow. While specialized breeding is often used to help produce plants that require less of these inputs, Purdue University researcher Burkhard Schulz has found a way to create tiny versions of plants that suffer no reduction in yield through the addition of a cheap and widely available chemical. Read More
— Science

Nanocrystal-coated fibers show promise for harvesting waste heat

By - April 25, 2012 2 Pictures
Researchers at Purdue University in the U.S. have developed a new method of harvesting vast amounts of energy from waste heat. Using glass fibers dipped in a solution containing nanocrystals of lead telluride, the team led by Dr. Yue Wu is engineering a highly flexible thermoelectric system that generates electricity by gathering heat from water pipes and engine components. Read More
— Music

Ghost Pedal lets guitarists wander the stage and wah

By - March 15, 2012 7 Pictures
No matter the size of the stage, most gigging guitar players are likely to have to return to the same spot from time to time to change the tone, increase the volume, check tuning or to operate the wah effect. Thanks to a team of students from Purdue University's School of Mechanical Engineering, the last of those has now been liberated from the pedal board and strapped to the player's ankle. But this doesn't involve attaching a large brick-shaped wah pedal to one leg, as one's imagination might suggest, but wearing a small wireless transmitter and a couple of sensors instead. Players operate the Ghost Pedal in much the same fashion as a physical pedal, the sensors registering the rocking motion of the foot and feeding data to a base station connected to the amplifier. Read More
— Motorcycles

Purdue University students develop high performance electric motorbike

By - February 1, 2012 14 Pictures
It doesn't seem too long ago when we were reporting on breakthroughs in battery technology that would allow electric motorbikes like the Brammo Enertia to travel as much as 45 miles (72 km) on a single charge. These days, we're seeing most of the recent arrivals (such as the 2012 Zero S range, for instance, or the gorgeous custom-built Brutus 2.0) flying past the 100 miles (160 km) barrier with relative ease, a range long enough to quieten even the most fervent of petrol-heads. Two Purdue University engineering students have recently completed the conversion of a Yamaha YZF600r to electric power that further pushes the envelope to more than 120 miles (193 km), using batteries cooled by phase change material. Read More
— Health and Wellbeing

Bass-thumpin’ rap music used to power implantable medical sensor

By - January 30, 2012 2 Pictures
We've been following the evolution of patient-embedded medical sensors for some time - miniature devices that run on batteries, transcutaneous (through-the-skin) induced current, even sugar and provide constant monitoring of various metabolic parameters. Now, a team from Purdue University's Birck Nanotechnology Center has developed a prototype pressure sensor which promises to address the shortcomings of previous designs and utilizes a novel power supply: the acoustic energy from bass-heavy riffs of rap music. Read More
— Science

Simple, cheap microtweezers could be used to build new MEMS devices

By - January 19, 2012 1 Picture
In order to do things such as building microelectromechanical systems (MEMS) or grabbing individual stem cell spheres for analysis, scientists use extremely fine-tipped tools known as microtweezers. While such devices aren't a brand new innovation in and of themselves, researchers from Indiana's Purdue University have developed a new type of microtweezers that are said to be easier and cheaper to manufacture than their conventional counterparts. Not only that, but unlike most similar devices currently in use, they don't require heat, magnetism or electricity to operate. Read More
— Science

Atom-tall silicon wires pave way for quantum computers

By - January 9, 2012 2 Pictures
The world's narrowest silicon wires with a cross section of a mere four atoms by one atom have been created by a team of developers from the University of New South Wales, the University of Melbourne and Purdue University. The wires are fully functioning, with current-carrying capacity equivalent to that of a microprocessor's copper cable, despite being 20 times thinner - and 10,000 times narrower than a human hair. Read More
— Aircraft

Controversial stealth aircraft canopy for sale on eBay?

By - December 28, 2011 9 Pictures
Twenty-eight years ago, the United States Navy decided that it wanted a field replacement for its A-6 Intruder ground-attack aircraft. A team from McDonnell Douglas and General Dynamics won the contract to design the plane, which would be an all-weather, aircraft carrier-based stealth bomber, known as the A-12 Avenger II. Its first flight was planned for December 1990, but technical difficulties and cost overruns kept the team from meeting that deadline. By January 1991, in fact, the Secretary of Defense cancelled the program due to breach of contract. A legal battle between the Navy and McDonnell Douglas ensued, and continues to this day. Now, however, it’s possible to own a literal “piece” of the story – a cockpit canopy reportedly made for the A-12 is for sale on eBay. Read More
— Science

New diode promises to uncork optical computing bottleneck

By - December 22, 2011 1 Picture
When it comes to speed, photons leave electrons for dead and have a higher bandwidth, which means optical computers will be much faster than their current electron-based cousins. While optical diodes for use in optical information processing systems already exist, these require external assistance to transmit signals so cannot be readily integrated into computer chips. Now researchers at Purdue University have developed a “passive optical diode” that not only doesn’t require any outside help to transmit signals, but is also so small that millions would fit on a computer chip, potentially leading to faster, more powerful information processing and supercomputers. Read More
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