This is a bit sciency to include here, but it still astounds me: they’ve actually measured the time it takes an electron to transfer from one atom to another. 320 attoseconds, or 3.2 x 10^-16 seconds. Or 0.32 femtoseconds. I’m surprised, because it’s faster than processes which take place on the nuclear scale, which are about one femtosecond.
This measurement depends on the rate of hole decay, or the “natural lifetime” of the hole, which is known to take 500 attoseconds. I don’t know how they measure that–at some point there has to be an absolute measurement here. But it’s still astonishing. The glories of science!
Anti-aging drugs are being tested as a way to treat covid
Drugs that rejuvenate our immune systems and make us biologically younger could help protect us from the disease’s worst effects.
These materials were meant to revolutionize the solar industry. Why hasn’t it happened?
Perovskites are promising, but real-world conditions have held them back.
The baby formula shortage has birthed a shady online marketplace
Desperate parents just want to feed their babies. They’re having to contend with misinformation, price gouging, and scams along the way.
I tried to buy an Olive Garden NFT. All I got was heartburn.
Our newest issue spells out what you need to know about the dizzying world of digital money.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.