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 Battery-Free Game Boy Will Last Forever The Man Who Invented the Turn Signal Mirror Syncing a Smartphone With a Simple Tap These Earthquake-Proof Beds Are Absolutely Freaking Terrifying Roads that Glow in the Dark The First Man-Made Biological Leaf
