News tagged with electric signals

IBM's breakthrough chip technology lights the path to exascale computing

(PhysOrg.com) -- IBM scientists today unveiled a new chip technology that integrates electrical and optical devices on the same piece of silicon, enabling computer chips to communicate using pulses of light ...

Technology / Semiconductors

created Dec 01, 2010 | popularity 4.8 / 5 (56) | comments 7 | with audio podcast

An Internet 100 times as fast: A new network design could boost capacity

(PhysOrg.com) -- The heart of the Internet is a network of high-capacity optical fibers that spans continents. But while optical signals transmit information much more efficiently than electrical signals, ...

Technology / Computer Sciences

created Jun 28, 2010 | popularity 4.7 / 5 (54) | comments 16 | with audio podcast

Rewrite the textbooks: Findings challenge conventional wisdom of how neurons operate

(PhysOrg.com) -- Neurons are complicated, but the basic functional concept is that synapses transmit electrical signals to the dendrites and cell body (input), and axons carry signals away (output). In one ...

Medicine & Health / Neuroscience

created Feb 17, 2011 | popularity 4.9 / 5 (51) | comments 15 | with audio podcast

Brain-Like Computer Closer to Realization

(PhysOrg.com) -- Almost since computing began, scientists and technologists have been fascinated with the idea of a computer that works similarly to the human brain. In 2008, the first "memristor" was built, ...

Nanotechnology / Nanophysics

created Mar 17, 2010 | popularity 4.6 / 5 (47) | comments 7 | with audio podcast weblog

Self-Programming Hybrid Memristor/Transistor Circuit Could Continue Moore's Law

(PhysOrg.com) -- As researchers strive to increase the density and functionality of circuit elements onto computer chips, one newer option they have is a memory resistor (or “memristor”), the fourth passive ...

Technology / Engineering

created Feb 26, 2009 | popularity 4.5 / 5 (46) | comments 8 feature

Engineers grow nanolasers on silicon, pave way for on-chip photonics

Engineers at the University of California, Berkeley, have found a way to grow nanolasers directly onto a silicon surface, an achievement that could lead to a new class of faster, more efficient microprocessors, ...

Physics / Optics & Photonics

created Feb 06, 2011 | popularity 5 / 5 (25) | comments 14 | with audio podcast

Cat brain: A step toward the electronic equivalent

A cat can recognize a face faster and more efficiently than a supercomputer. That's one reason a feline brain is the model for a biologically-inspired computer project involving the University of Michigan.

Nanotechnology / Nanophysics

created Apr 14, 2010 | popularity 4.6 / 5 (27) | comments 14 | with audio podcast

Study Shows Electrical Fields Influence Brain Activity

(PhysOrg.com) -- Most scientists have viewed electrical fields within the brain as the simple byproducts of neuronal activity. However, Yale scientists report in the July 15 issue of the journal Neuron that e ...

Medicine & Health / Neuroscience

created Jul 14, 2010 | popularity 4.5 / 5 (24) | comments 5 | with audio podcast

Redefining electrical current law with the transistor laser

(PhysOrg.com) -- While the laws of physics weren't made to be broken, sometimes they need revision. A major current law has been rewritten thanks to the three-port transistor laser, developed by Milton Feng ...

Physics / General Physics

created May 12, 2010 | popularity 4.7 / 5 (23) | comments 5 | with audio podcast

New radio chip mimics human ear, could enable universal radio (w/Video)

(PhysOrg.com) -- MIT engineers have built a fast, ultra-broadband, low-power radio chip, modeled on the human inner ear, that could enable wireless devices capable of receiving cell phone, Internet, radio ...

Technology / Engineering

created Jun 03, 2009 | popularity 4.2 / 5 (24) | comments 2

Scientists discover why we never forget how to ride a bicycle

(PhysOrg.com) -- You never forget how to ride a bicycle - and now a University of Aberdeen led team of neuroscientists has discovered why.

Medicine & Health / Neuroscience

created Jul 17, 2009 | popularity 4.4 / 5 (22) | comments 0

Our brains are wired so we can better hear ourselves speak, study shows

(PhysOrg.com) -- Like the mute button on the TV remote control, our brains filter out unwanted noise so we can focus on what we're listening to. But when following our own speech, a new brain study from UC ...

Medicine & Health / Neuroscience

created Dec 08, 2010 | popularity 4.9 / 5 (18) | comments 0 | with audio podcast

Photonic neuron may compute a billion times faster than brain circuits

(PhysOrg.com) -- The name of the project -- "photonic neuron" -- was catchy enough, but what really caught Mitchell Nahmias' attention was the opportunity to combine his interests in engineering and neuroscience.

Physics / General Physics

created Jul 19, 2011 | popularity 4.8 / 5 (17) | comments 9

Active ingredients in marijuana found to spread and prolong pain

Imagine that you're working on your back porch, hammering in a nail. Suddenly you slip and hit your thumb instead — hard. The pain is incredibly intense, but it only lasts a moment. After a few seconds (and a few unprintable ...

Medicine & Health / Medical research

created Aug 13, 2009 | popularity 2.9 / 5 (25) | comments 24

55": LG announces world's largest OLED TV panel

LG Display announced that it has developed the world's largest 55-inch OLED (Organic Light Emitting Diodes) TV panel. The 55-inch panel is a significant step forward in the popularization of OLED TVs and demonstrates ...

Electronics / Consumer & Gadgets

created Dec 27, 2011 | popularity 4.4 / 5 (16) | comments 9 | with audio podcast