Ok, as I understand it we have no way to determine the speed which we are moving at in an absolute sense.<BR><BR>We can say "We are moving 20 miles per hour in the car relative to the road" or "The ...

Cold atoms could also potentially measure much lower vacuum pressures than ion gauges can. The current lowest pressure they’ve reliably measured is around 10 -9 Pa, and NIST scientists are working on ...

By using something called a quantum grid, scientists have found a clever way to simultaneously measure momentum and position ...

Once tied to a metal cylinder in France, the kilogram has now been redefined using the fundamental laws of physics.

WashU physicists build quantum sensors in boron nitride sheets to study magnetism and stress under extreme pressure.

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 ...

For almost a century, Heisenberg's uncertainty principle has stood as one of the defining ideas of quantum physics: a ...

A subatomic particle called the W boson may be heavier than expected, a surprising finding that might lead to a shake-up of physics' grand model of how the world works on the microscale. When you ...