Speed of Sound – 3B30.10

- A metal surface is hit with a hammer and a flash light is activated instantly.
- Two students half a mile away with stop watches; one registers the time when he hears the sound and the other one when he sees the flash light.

Location: Jacobs B122-275

Helium Talk – 3B30.50

- Talk or laugh while breathing helium.

 Location: Jacobs B122-275