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Lakshmi Sandhana

Lakshmi Sandhana

When Lakshmi first encountered pig's wings in a petri dish, she realized that writing about scientists and imagineers was the perfect way to live in an expanding mind bubble. Articles for Wired, BBC Online, New Scientist, The Economist and Fast Company soon followed. She's currently pursuing her dream of traveling from country to country to not only ferret out cool stories but also indulge outrageously in local street foods. When not working, you'll find her either buried nose deep in a fantasy novel or trying her hand at improvisational comedy.

— Robotics

New sensor system enables robots to look inside luggage

Luggage lying around unattended at an airport justifiably triggers the jitters. The hazardous task of getting up close to inspect what could potentially be a bomb that could explode any time invariably falls to the bomb squad. Researchers have come up with a way to minimize the risk by creating a sophisticated, robot-mountable, sensor system that allows authorities to scan a piece of luggage and get an accurate image of its contents. The contact-free detection system could not only potentially help bomb specialists assess the danger quickly, but it could also help them obtain vital evidence.

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— Marine

SeaSki high-speed boat design leaves little in its wake

Boats are as old as human civilization, but that doesn't mean there's no room for improving the design. Case in point is the SkiSea, a new hull concept out of Australia that uses special skis to provide hydrofoil-like lift. SkiSea creator Trevor Payne says this approach allows for greater fuel economy, stability in rough waters, a shallow draught, and higher speeds while generating minimal wash or bow waves. Gizmag spoke with Payne about his design.

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— Physics

Sonic tractor beam forms acoustic holograms to lift objects

Last year, researchers at the University of Dundee revealed an acoustic tractor beam that used ultrasonic energy to pull macroscopic objects in. Now researchers in the UK have developed a sonic tractor beam that generates acoustic holograms through the manipulation of high-amplitude sound waves. These acoustic holograms, which can take various shapes, such as fingers, cages and vortexes, are able to pick up and move small objects like polystyrene beads.

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— Medical

"Lab in a needle" could streamline medical diagnoses

What if it were possible to squeeze the diagnostic ability of a lab into a single needle? Scientists have come up with a self-contained lab in a needle-like device which is claimed capable of delivering results to common lab tests instantly. The device could potentially allow doctors to diagnose and treat conditions faster and make it easier to conduct diagnostic tests anywhere.


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— Physics

Nanoscale wrench is just 1.7 nanometers wide

Envision a nanoscale wrench, capable of controlling shapes at the nanoscale level to create customized molecules. That's what Severin Schneebeli, a University of Vermont chemist and his team have developed. The opening on this mini wrench is only 1.7 nanometers, roughly a hundred-thousand-times smaller than the width of human hair.

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— Electronics

Smart light lets you control your environment

What if the light in the room could sense you waving your hand as you enter? And what if it responded by introducing minute light changes that instructed your smart coffee machine to switch on? Researchers at Dartmouth College have developed a sensing system called LiSense that aims to make the light around us "smart." Not only does it use light to sense people’s movements, but it also allows them to control devices in their environment with simple gestures, using light to transmit information.

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— Electronics

Sensor detects sound direction and cuts background noise

Although the ability tends to wane as we get older, the human auditory system is pretty good at filtering out background noise and making a single voice able to be understood above the general hubbub of a crowded room. But electronic devices, such as smartphones, aren't quite as gifted, which is why getting Siri or Google Now to understand you in crowded environments can be an exercise in futility. But now researchers have developed a prototype sensor that’s not only able to figure out the direction of a particular sound, but can also extract it from background noise.

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— Energy

Printable solid-state PRISS battery to change the shape of battery technology

Researchers have created printable solid-state batteries that can be printed in any conceivable shape and can be seamlessly embedded into a variety of surfaces. To demonstrate the technology, the scientists printed a working heart-shaped battery onto a cup, another onto a paper eyeglass and even one in the form of the letters "PRISS", all of which were capable of powering LEDs.

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