Metamaterials based optical cloaks that promise invisible planes, vehicles and armies, and protection from earthquakes & tsunamis

“Invisibility” is a goal that has been long sought after by the  Militaries. An operational cloaking chip could be an extension of technologies such as radar-absorbing dark paint used on stealth aircraft, local optical camouflage, surface cooling to minimize electromagnetic IR emissions, or electromagnetic wave scattering. Metamaterials are the primary materials  that are for cloaking, making their platforms, weapons and persons invisible from electro-optic sensors, radars and sonars.