Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
17
Passengers on the Beijing subway can pay with plastic bottles.
29
More books are written, published and sold per person per year in Iceland than anywhere else on the planet. One in ten Icelanders will become a published author in their lifetime.
5
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9