Graphene, harder than diamond and the thinnest and lightest object ever obtained. It is also 300 times stronger than steel and conducts electricity better than any other product.

Graphene, harder than diamond and the thinnest and lightest object ever obtained. It is also 300 times stronger than steel and conducts electricity better than any other product.
A fantastic solution for disaster zones from designers Park On-Hee, Kim Myeoung-Soo and Jang Young-Seo. The Whistle is a simple glow-in-the-dark blowing implement that survivors buried under rubble can use to attract attention.