Time can now be divided into slivers hundreds of trillions of times smaller than a second, thanks to a pair of atomic clocks made from ytterbium that have just set a new record for precision.
This could allow us to detect how an object just 1 centimetre above another might age differently, as prescribed by Einstein's theory of general relativity. It could also set a new standard definition for the second.
"We've reached a new level, an order of magnitude impro
Source: New Scientist. Read full article. (link)