Structural Colour, Soap Films, & Nanotech Security From Butterflies Scientists are being inspired by nature to design the next generation of security devices. Arrays of nanoscale holes create beautiful reflected colors that are almost impossible to forge. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Why People Keep Eating Tide Pods What Would Happen If You Placed Your Hand In The Large Hadron Collider? Do You Know What Lagrange Points Are? Will YouTube ever run out of video IDs? Discover Saturn’s Mysterious Moons How Is Ink Made?