Amazing Data

A Blog on amazing stuff: Amazing pictures, amazing world, amazing people, funny and cool stuff, etc.

The Teenager Audio Test

Category: Amazing photos

Train Horns

Can you hear the sound in the clip at this site? I can’t, but that’s not surprising. It can generally only be heard by people under the age of 25. Those who can hear it say it’s pretty annoying. Some older folks use it to repel teens, but some young people use it for a ring tone. Link -via Digg



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