See all National Geographic videos: video.nationalgeographic.com An annual tradition turns into disaster when onlookers are swept away by a tidal wave.
(Official Website) www.rockbeats.tv FACEBOOK FAN-PAGE "LIKE IT" http Just breaking down some aspects of popping/dancing that I had trouble with when I first started learning...
Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and (seemingly) random motion. For more details...