nist

What happens is a trillionth of a second after the Big Bang
What happens in a trillionth of a trillionth of a trillionth of a second after Big Bang?
US made the world's most accurate atomic clock set a new record
The world's most accurate atomic clock will only deviate a second for 15 billion years.
Lasers cool or create strange states
In the latest German study, we have changed our perception of ordinary physics, with a completely new perspective that shows the properties of lasers.