The Doppler Effect

This is great; yet another way of distracting people in class.

I’ve seen this before, just not on this scale. Other in class shenanigans:

• Laser pointers
• Fart machine
• Apple Remote, for activating Front Row on people’s computers in class

That’s the short list because most of the other things I could thing of (firecrackers, ferrets) would probably be bad news. Any other ideas?

Via Gizmodo.