Drew, an oceanography graduate student, writes: “This, on my leg, is the incompressible form of the conservation of mass equation in a fluid, also known as the continuity equation. When people ...

It is perhaps the most famous equation in the world, and also one of the most elegant. Einstein’s legendary equivalence between mass and energy, given the simple formula E=mc^2, is familiar even to ...

Discover how Einstein’s theory of special relativity reshaped physics by linking space, time, mass, and energy in a universe governed by the speed of light.

We solve problems pertaining to the Conservation of Momentum using various scenarios. In this Closer Look segment on conservation of momentum, we solve problems pertaining to the conservation of ...