If you know your U.S. history, there have been several attempts to adopt the metric system, all to no avail. It's the universal standard for most of the world and way more intuitive, yet the chances ...

A new laser-based method for measuring millimeter distances more accurately than ever before -- with an uncertainty of 10 picometers (trillionths of a meter) -- has been developed and demonstrated by ...

The flow of time isn’t as consistent as we might think – gravity slows it down, so clocks on the surface of Earth tick slower than those in space. Now researchers have measured time passing at ...

A new laser-based method for measuring millimeter distances more accurately than ever before--with an uncertainty of 10 picometers (trillionths of a meter)--has been developed and demonstrated by a ...