The motion of any object is relative. On Earth we tend to ignore that, because the vast background of the ground gives us a seemingly fixed and absolute frame of reference. Sitting comfortably at our ...

When Galileo's name comes up, most people think about his contributions to observational astronomy. However, he did lots of other stuff including investigating the speed of light. During his time, ...

Saturday Night Fever: you may remember the dance performed by John Travolta and Karen-Lynn Gorney to the Bee Gees song (1) ...

Modern cars surround drivers with digital certainty, yet one of the most basic numbers on the dashboard is quietly biased in ...

Nuclear physicists proposed a method to measure the speed of sound characterizing matter created in nuclear collisions. Heavy nuclei consist of hundreds of protons and neutrons (belonging to a group ...