xkcd2

Gyroscopes

[[Person at desk with Gyroscope]] Narrator: Despite years of studying physics, I still find gyroscopes a little freaky. [[Person starts gyroscope with a zzzzip]] [[Gyroscope spins with a zzzzzz]] [[Gyroscope lifts into the air]] Gyroscope: Greetings, Human.

We didn't actually land on the moon – it just looked like we did because of precession. Also, gyroscopes caused 9/11.