In science, we often say things like “all scientific results must be replicable.” If you have one researcher who says “I’ve measured the speed of light to be 3-million meters per second.” another ...

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 ...

Here on land, the speed of a vehicle is recorded in either miles per hour or kilometers per hour. In either case, determining how fast you're moving on land is fairly simple because you can see ...

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, ...

Ever wondered why automakers use 60 miles per hour as the standard measurement for acceleration? There's actually a good reason.

Forbes contributors publish independent expert analyses and insights. I write about physics, science, academia, and pop culture. Tunneling is, at its heart, a wave phenomenon. Because quantum ...

There’s a simple way to measure the speed of sound. It’s low tech and unimpressive, but you get to blast an air horn. How many times can you say that you’re using one for science and not sheer ...

Corrections & clarifications: A previous version of the story misstated a measurement of Internet speed. We know what “slow” internet is like: videos buffer, downloads lag and a single page can take ...