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 Low-Res Screens Transformed into Higher-Res with Vibration The Man Who Made An 8-bit Chipophone Skymap – Mapping Destroyed Unrecognizable Areas Real Life Batman Suit is Strong Enough to Stop Stabbings Nikola Tesla’s Valvular Conduit Patent 1920 Wireless Devices That Need No Battery