Hi, what do you want to do?
SciShow
What's the Loudest Possible Sound?
How many decibels would be recorded by the loudest sound waves your ears could possibly process? The loudest sound might be quieter than you think (because of how sound waves work)...or it might be louder than you think (because of how...
TED-Ed
A Call to Invention: DIY Speaker Edition
Can you build a homemade speaker out of a potato chip? Bestselling author and do-it-yourself expert William Gurstelle shows you how in his brief presentation at TEDYouth 2012. He encourages young people to be creative and explore...