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Engineering Nov 11, 2015

New pop-up sensor may help robotic surgery

Robots have taken over the O.R. Today, more and more surgeries are performed from behind a computer console as multi-million dollar, multi-armed surgical robots like the Zeus or Da Vinci systems replace hand-held scalpels. ...

General Âé¶¹ÒùÔºics Nov 10, 2015

New "tricorder" technology might be able to "hear" tumors growing

When Dr. Leonard "Bones" McCoy needs to diagnose an ill member of the Starship Enterprise, he simply points his tricorder device at their body and it identifies their malady without probing or prodding. Similarly, when Capt. ...

Optics & Photonics Nov 5, 2015

Second harmonic generation in a high-Q crystal microresonator fabricated by femtosecond laser

High-quality (high-Q) whispering-gallery-mode (WGM) microresonators can efficiently confine light in a very small volume via total internal reflection, leading to dramatically enhanced interaction of light with matter. The ...

Nanomaterials Nov 4, 2015

Graphene could take night-vision technology beyond 'Predator'

Movies such as 1987's "Predator," in which an alien who sees in the infrared hunts down Arnold Schwarzenegger and his team, introduced a generation of sci-fi fans to thermal imaging. Since then, heat-sensing devices have ...

Nanophysics Aug 17, 2015

Tiny gears increase light-to-work conversion efficiency by five orders of magnitude (w/ video)

(Âé¶¹ÒùÔº)—Scientists have demonstrated that pinwheel-shaped microgears floating on a liquid surface can rotate at speeds of up to 300 r.p.m. when illuminated by an ordinary LED. This light-driven motion, which arises because ...

General Âé¶¹ÒùÔºics Jun 29, 2015

Ultrasonic fingerprint sensor may take smartphone security to new level

Fingerprint sensor technology currently used in smartphones like the iPhone 6 produces a two-dimensional image of a finger's surface, which can be spoofed fairly easily with a printed image of the fingerprint. A newly developed ...

General Âé¶¹ÒùÔºics Jun 19, 2015

Could we one day control the path of lightning?

Lightning dart across the sky in a flash. And even though we can use lightning rods to increase the probability of it striking at a specific location, its exact path remains unpredictable. At a smaller scale, discharges between ...

Nanophysics Dec 17, 2014

Chemically driven micro- and nanomotors

At least since the movie "The Fantastic Voyage" in 1966, in which a submarine is shrunk down and injected into the blood stream of a human, people have been toying with the idea of sending tiny "micromachines" and "nanorobots" ...

Nanophysics Oct 3, 2014

Arrays of tiny conical tips that eject ionized materials could fabricate nanoscale devices cheaply

Luis Fernando Velásquez-García's group at MIT's Microsystems Technology Laboratories (MTL) develops dense arrays of microscopic cones that harness electrostatic forces to eject streams of ions.

Nanophysics Sep 29, 2014

Scientists improve microscopic batteries with homebuilt imaging analysis

(Âé¶¹ÒùÔº) —In a rare case of having their cake and eating it too, scientists from the National Institute of Standards and Technology (NIST) and other institutions have developed a toolset that allows them to explore the ...

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