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 ...

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 ...

Imperfect current propagation in the heart is responsible for most cardiac diseases. Thanks to a novel magnetocardiography technique, we can now image these currents at millimeter-scale resolutions.