Red Hot

Today LEDs come in yellow, orange, green, turquoise, blue-violet, and even white. But first there was red--and first there was Nick Holonyak

9 min read

They shine from clocks and traffic lights; they blink on our car dashboards. They flash on the soles of children's running shoes; they glow from the coffeemakers in our kitchens. They tell us that our modems are connecting to our networks; they reassure us that our cellphones are on. They lit up the face of the first personal computer and the first wristwatch with an electronic display; they illuminate today's suspension bridges and video billboards.

These tiny semiconductor sandwiches known as light-emitting diodes (LEDs) can now create every color of the rainbow and more. But LEDs all trace their genealogies back to the first visible laser diode—and it was red. The father of that primordial visible diode is Nick Holonyak Jr., the winner of this year's IEEE Medal of Honor.

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Stretchable Artificial Nerves Help Restore Motion in Mice

New neuroprosthetic approach is more flexible and less power-hungry than other designs

2 min read
illustration of a paralysed mouse and a moving mouse

A paralyzed mouse with a spinal cord injury or motor neuron disease (left) and a mouse that

has recovered voluntary motor function by using stretchable artificial nerves (right).

Stanford University

Conventional neuroprosthetic devices that aim to help patients bypass nerve damage are often rigid and power-hungry. Now scientists have developed stretchable artificial nerves that helped paralyzed mice run on a treadmill and kick a ball while consuming less than one-hundredth of the power of a typical microprocessor. The scientists suggest these artificial nerves may one day find use in the human body.

To help restore movement to patients who have suffered nerve damage from injuries or diseases, scientists are researching neuroprosthetic devices that can help relay signals from the brain to muscles or nerves. However, these systems often face a number of critical limitations, says study co-senior author Tae-Woo Lee, a materials scientist at Seoul National University.

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Xiaomi Builds a Humanoid Robot for Some Reason

CyberOne is a new biped from China, but why does it exist?

3 min read
A black and white humanoid robot lies face down on dirt after appearing to have just fallen

Xiaomi, a large Chinese consumer electronics manufacturer, has introduced a full size bipedal humanoid robot called CyberOne. It’s 177 centimeters in height and weighs 52 kilograms, and it comes with 21 degrees of freedom, with “a curved OLED module to display real-time interactive information.” Nifty! So, uh, its actual purpose is... what exactly?

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Accelerate Time to Market with Calibre nmLVS Recon Technology: A New Paradigm for Circuit Verification

Improve LVS circuit verification productivity in early-stage SoC integration and reduce time to market

1 min read
Accelerate Time to Market with Calibre nmLVS Recon Technology: A New Paradigm for Circuit Verification

One thing is clear…tapeouts are getting harder, and taking longer. As part of a growing suite of innovative early-stage design verification technologies, the Calibre nmLVS Recon tool enables design teams to rapidly examine dirty and immature designs to find and fix high-impact circuit errors earlier and faster, leading to an overall reduction in tapeout schedules and time to market.

Learn more in this technical paper.