In case you were curious about notable science events that have happened on April 11th…
Uh, Houston, we have a problem. On April 11th, 1970, NASA launched Apollo 13. The mission, which was to land on the moon, was cut short on the second day when an explosion crippled the spacecraft. Although the mission was aborted and the shuttle never landed on the moon, all three astronauts successfully returned home.
|photo credit: Kévin Froissard|
It’s all relative. On April 11th, 1905, Albert Einstein revealed his Theory of Relativity. His theory revealed many new and surprising possibilities. Einstein hypothesized that moving clocks are measured to tick more slowly than an observers “stationary” clock. This effect, known as time dilation, is a principle commonly associated with black holes, as any sci-fi or Stargate fan could tell you.
Einstein’s theory also explained the relativity of simultaneity (its a real word, I promise). This theory states that two events that appear simultaneous to a stationary observer will not appear simultaneous to a moving observer. Didn’t quite follow that? Me, either. Here’s a little video explaining it.