#xkcd 332

[yesterdays-xkcd]

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

Gyroscopes [Explained]

Transcript Under the Cut

[Cueball sits at a desk, starting a gyroscope.] Narration: Despite years of studying physics, I still find gyroscopes a little freaky. Gyroscope: zzzzip

[The gyroscope spins.] Gyroscope: zzzzzz

[Frameless panel, the gyroscope lifts into the air.]

[The gyroscope moves away from Cueball, still spinning.] Gyroscope: GREETINGS, HUMAN.