We test a few different methods for protecting yourself against an LRAD system.

Nothing - 3:54
Earplugs - 4:50
Standard Headphones - 5:54
Electronic Headphones - 6:46
Face Shield - 8:21
Riot Shield - 9:23

Previous LRAD videos:
https://youtu.be/Gi3WBwR8yeo…

Native American history didn’t begin in 1492, and it didn’t end in 1900. It stretches back thousands and thousands of years and extends into the present – and the future – of the United States. In our first episode of Crash Course Native American History…

Howdy Friends,
In this video we explore the intricacies of Americas forgotten natural wonder known as the Great Raft. This structure, which filled the Red River for more than 1,000 years, was a naturally occurring runaway logjam that stretched more than 160…