Physics:What's That About — Getting Around
We're always moving and taking things with us. Whether it's pizza to the moon or a fridge up the stairs. And we're always inventing new ways to move things， like a backpack based on the Brooklyn Bridge or a container that lets vegetables breathe. Let's get ready to find out why a cardboard box is like an aqueduct; why the pocket was invented and so on.
- Added：2006
- Country：America
- Duration：60
- Time of update：2011/8/16 10:59:45