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
When Your Body Becomes Your Password, The End Of The Login Is Near
Electronic Skin Can Feel Temperature Changes and Pressure, Could be Used on Robots
Iron Man Becoming Real (Richard Browning, Gravity Industries)
WatchMI: Pressure Touch, Twist and Pan Gestures on Unmodified Smartwatches
Futuristic treadmill lets you walk in any direction
