Scientists make a polar bear-inspired invisibility cloak

Move aside Harry Potter, science has invisibility cloaks too. The non-magical version was inspired by polar bear fur and works by having, excellent thermal insulating properties.┬áPolar bear hair has a hollow core which effectively prevents the infrared emission, or heat signature, of the polar bear from escaping the fur. This helps the bear retain its heat and stay warm. Because of this efficient reflection of … Continue reading Scientists make a polar bear-inspired invisibility cloak