Unspecified (physics) 1:00:00 [3]
Today we made some important experimental observations but I have yet to come to any useful conclusions.
You can put two milk bottle lids into the top of a plastic cup, and then you can shake-a-shake-a-shake the cup to make a happy noise. You cannot put the lids into the bottom of the cup, because there is no hole there. Only in the top. BUT if you turn the cup over so that the top becomes the bottom and the bottom the top, then you can no longer put the lids into the top of the cup because it is the top that used to be the bottom and there is no hole there, and the lids fall on the floor. BUT now, you can't put the lids into the bottom of the cup either, even though it is the bottom that used to be the top and there is definitely a hole there, because the lids won't go into the hole, they just fall on the floor.
SOOOO you have to turn the cup over so that the bottom that was the top is now the top again, and you can put the lids in the hole and then shake-a-shake-a-shake the cup which is GREAT. But if you get excited and shake-a too much then the lids go on the floor, even though top and bottom are in their usual places and it is so confusing.