In his discussion of accelerated motion on page 60 of "The Meaning of Relativity," Albert Einstein made an approximation that allowed him to develop the theory of relativity further. Einstein ...

During its teenage and young adult years—what is now referred to as its “classical” period—physics made a lot of mistakes. In the old physics, mass and energy were separately conserved; particles’ ...

When you throw a ball in the air, the equations of classical physics will tell you exactly what path the ball will take as it ...

Since 2007, physicist Leonard Susskind has regularly delivered a lecture series called the Theoretical Minimum, on the foundations needed to study different areas of ...

What "classical physics" refers to depends on the context. When discussing special relativity, it refers to the Newtonian physics which preceded relativity, i.e. the branches of physics based on ...

Add Yahoo as a preferred source to see more of our stories on Google. Galileo, holding two balls, about to perform his legendary experiment. Hulton Archive/Stringer via Getty Images If you drop a ...

Explore 25 scientific discoveries that broke the laws of physics, from quantum entanglement to dark energy. Uncover ...

Out with the old: Many undergraduate physics curricula need revamping. (Courtesy: iStock/Pobytov) Physics education has a high inertia towards change. While high-school students in today’s biology ...