April Fools: Door Lock Chain

Clever:

http://www.artlebedev.com/everything/defendius/

Zip lock bags -- how they work

Here's what a Zip lock bag looks like under a microscope:

http://www.cockeyed.com/science/eyeclops/eyeclops_ziplock.shtml

They used a camera called an Eyeclops, which runs $38 at Amazon. Might be a good gift for the kids.