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 Super Sand Removes Carcinogens From Water in This Filter Supermarket Scanner Recognizes Objects – No Need For Barcodes Transparent Solar Panels for Cars? Photoshop-Like Interior Light Control Very Creative New Lock Design Rechargeable Battery Can Stretch, Twist and Bend
