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Cheap Sensors for Smarter Farmers

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One of the benefits of using print electronics is being able to mass-produce at a low cost, says Gregory Whiting at the University of Colorado, Boulder, one of the principal investigators of the team working on the sensors. First up is a 3D-printed, biodegradable soil sensor that checks moisture and nitrogen levels.

Cheap 142
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Ham Radio Inspired This Scranton University Student to Pursue Engineering

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is pursuing an electrical engineering degree at the University of Scranton , in Pennsylvania. The junior is president of the university’s W3USR amateur radio club. Piccini now is helping to develop a low-cost, low-power system to send a signal into the ionosphere and measure the time it takes to return.

Universal 102
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Sandia team boosts hydrogen production activity by molybdenum disulfide four-fold; low-cost catalyst for solar-driven water splitting

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A team led by researchers from Sandia National Laboratories has shown that molybdenum disulfide (MoS 2 ), exfoliated with lithiation intercalation to change its physical structure, performs as well as the best state-of-the-art catalysts for the hydrogen evolution reaction (HER) but at a significantly lower cost.

Low Cost 150
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IoT-ize Your Old Gadgets With a Mechanical Hijacking Device

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Or, that was the idea, anyway. KAIST/Korea Polytechnic University The paper doesn't directly address the cost of the MHD, and with three motors and some other electronics in it, it's not likely to be super cheap. I'd expect it to cost at least USD $100, although perhaps it could get somewhat cheaper in volume.

DIY 134
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Move Over, Tractor—the Farmer Wants a Crop-Spraying Drone

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Arthur Erickson Occupation: Aerospace engineer and founder, Hylio Location: Houston Education: Bachelor’s degree in aerospace, specializing in aeronautics, from the University of Texas at Austin Erickson founded Hylio with classmates while they were attending the University of Texas at Austin.

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UT Austin team develops new family of high-capacity anode materials: Interdigitated Eutectic Alloys

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Researchers in the Cockrell School of Engineering at The University of Texas at Austin have developed a new family of anode materials that can double the charge capacity of lithium-ion battery anodes. It is a simple, low-cost approach that can be applied to a broad range of alloy systems with various working ions such as Li, Na, or Mg.

Austin 150
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Miniscule Sensing Suite is a Big Step Towards Robotic Gnats

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In the late 1980s, Rod Brooks and Anita Flynn published a paper in The Journal of the British Interplanetary Society with the amazing title of Fast, Cheap, and Out of Control: A Robotic Invasion of the Solar System. That was 1989, we’re still nowhere near millions of tiny robots.

Cheap 112