Reverse filter lets bigger things through, hold back smaller things.
This improbable membrane can trap flies in a jar—and odor in a toilet
Checkout these cool gadgets...
Related Posts
2010 Nobel Prize in Physics Goes to Geim and Novoselov For Their Work on Graphene
GPS Tracking without GPS Signal
New Light-Controlling Sheet Paves Way For Faster Mirror To Window Glass Change
Artificial spider silk behaves like a solid and a liquid
Revolutionary Color Night Vision Camera
