You know what they say: the observer affects the observed. But have you ever stopped to consider the observer's observer? We've all heard of Heisenberg's Principle, but few know the true story behind it.

"The more you observe something, the more it changes, until it's no longer the same thing, until it's something else entirely." — Heisenberg, the Great

Tired of trying to measure the speed of light? Want to learn more about the observer effect? Measurement Problematic More on the Observer Effect