Thursday, July 7, 2011 5:46:18 PM
Water IS correct, if Mr video maker doesn't start changing his experiment half way -_- And it makes sense, that if the water is moving as a whole because there is no air, it will move faster than if the water is also flowing around the bottle at the same time. Builds more momentum or something? I haven`t got a clue but that feels right to me...
Tuesday, July 5, 2011 3:36:02 PM
I guessed water. Forgive my ignorance, but doesn't there have to be a right answer unless they both roll at the same speed? Also doesn`t adding air into the liquid filled bottle make the experiment void?
Tuesday, July 5, 2011 11:48:03 AM
oh man.. it's just normal that a sealed bottle goes faster than one with a hole with air in it, because the one with air in it it will move it`s weight back and forth and is not as straight then, that`s all it`s about.