This improbable membrane can trap flies in a jar—and odor in a toilet Reverse filter lets bigger things through, hold back smaller things. Facebook Prev Article Next Article Inventions Checkout these cool gadgets... Related Posts This Startup Wants to Use Drones to Drop Blood, Not Bombs Pretty Neat Swedish Invention – Hook & Moor The Hot Tub Boat First Manned Flight for Flike Personal Tricopter Toughest ever heat shields made of springy sponge-like stuff Beddit Smart sleep tracker app turns beds into smart beds
