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 Anti-Earthquake House Foundations – Airbags Toughest ever heat shields made of springy sponge-like stuff Ultra Tiny Home In Japan Unusual Invention – The Pet Petter What If We Had Solar Panels on Roadways ? Dual Carbon Batter – Changing Energy Storage