Most soft robots are controlled manually or pre-programmed but the lenses mimic the natural electric signals in the human eyeball that are active even when the eye itself is closed.
Mechanical engineers have discovered a way to produce more electricity from heat than thought possible by creating a silicon chip, also known as a ‘device,’ that converts more thermal radiation into electricity. This could lead to devices such as laptop computers and cellphones with much longer battery life and solar panels that are much more efficient at converting radiant heat to energy.
We look back at the historic 1969 moon landing of the Apollo 11. Hear stories from the original crew, explore photos and experience the launch in VR.
The asteroid managed to get within just 73,000 kilometers of our planet without anyone noticing. The miss lends a new sense of urgency to preparations for a potential collision one day.
The news: On Thursday July 25 an asteroid dubbed “Asteroid 2019 OK”, measuring 57 to 130 meters wide (187 to 427 feet), got uncomfortably close to Earth, according to NASA’s near-Earth objects database. It was less than one-fifth of the distance to the moon away, making it a very close call in space terms. If it had landed on a populated area it could have caused major damage, although this outcome is statistically quite unlikely.
Should we worry? It’s hard not to feel concerned that a “city-killer” sized asteroid wasn’t detected further ahead of time. It was announced just hours before it passed by Earth, after being detected just a few days beforehand by teams in the US and Brazil. Its relatively small size, unusual orbit, and fast speed all conspired to make it tough to spot, researchers told the Washington Post.
But getting human cells to grow in another species is not easy. Nakauchi and colleagues announced at the 2018 American Association for the Advancement of Science meeting in Austin, Texas that they had put human iPS cells into sheep embryos that had been engineered not to produce a pancreas. But the hybrid embryos, grown for 28 days, contained very few human cells, and nothing resembling organs. This is probably because of the genetic distance between humans and sheep, says Nakauchi.
The research could eventually lead to new sources of organs for transplant, but ethical and technical hurdles need to be overcome.
For decades, computer programmers have been trying to beat multiplayer games by finding reliable patterns in data.
Researchers at Facebook and Carnegie Mellon University published a whitepaper in Science Journal in July that flips this switch. Their software embraces randomness, and it is reliably beating humans at games.
Jump to media player The semi-autonomous robot is able to use human tools and guide itself across difficult terrain.
At a certain point in our lives all of us develop a negative relationship with the mirror on the wall. It just keeps showing too many lines, too many grey hairs and sagging stuff everywhere.
I know quite a few people who end up refusing to face the mirror for any reason whatever!
But we don’t all have to resort to such drastic measures, because there is something simple and enjoyable you can do to slow down the clock.
Medicine has a “Goldilocks” problem. Many therapies are safe and effective only when administered at just the right time and in very precise doses – when given too early or too late, in too large or too small an amount, medicines can be ineffective or even harmful. But in many situations, doctors have no way of knowing when or how much to dispense.
Now, a team of bioengineers led by UC San Francisco’s Hana El-Samad, PhD, and the University of Washington’s David Baker, PhD, have devised a remarkable solution to this problem – “smart” cells that behave like tiny autonomous robots which, in the future, may be used to detect damage and disease, and deliver help at just the right time and in just the right amount.