Just some helpful science if you ever find yourself face to face with a grenade :) FREE Audio Book- http://bit.ly/AudibleMarkRober CHECK OUT THE BACKYARD SCIENTIST: https://www.youtube.com/watch?v=Sl0BHueSjvA Thanks to Nathan for the High Speed camera. If you need a High Speed camera to rent for super cheap check him out. Insanely low prices for great gear- http://www.aimed-research.com/ Really good paper on why jumping into the pool is a much worse idea than the pool deck: http://www.scuba-doc.com/uwblast.html MUSIC- 2:00- Berlin- Andrew Applepie- http://www.andrewapplepie.com/ 4:40- I’m So- Andrew Applepie- http://www.andrewapplepie.com/ 5:00- Apple pies and butterfly's- Blue Wednesday- https://soundcloud.com/bluewednesday/apple-pies-butterflies PLEASE CONSIDER SUBSCRIBING: http://tinyurl.com/MarkRober-Sub ****************************************­ I make videos like this once a month all year long while supplies last: CHECK OUT MY CHANNEL: http://tinyurl.com/MarkRober-YouTube FACEBOOK: https://www.facebook.com/MarkRoberYouTube TWITTER: https://twitter.com/#!/MarkRober INSTAGRAM: https://www.instagram.com/markrober/