Boiling Water Put boiling water into the jug and shake it with the lid closed, but loose. When steam and water stops coming out, screw the lid on tight. The jug will begin to collapse. The action can be speeded up by using cold water on the jug. As the steam in the air condenses, the pressure in the jug diminishes.
Atmospheric pressure crushes it.
Smooth Surface Fix one end of the wooden spool so that the balloon can be slipped over it. Attach the other end of the spool to the center of the record with candle wax or glue. The holes in the spool and record should match. Inflate the balloon, slip its mouth over the spool and place the record on a smooth surface. Release the balloon and the record will glide over the smooth surface with little friction.