This artificial muscle lifts 1,000 times its own weight, but only costs $1 to make. | Mashable

On a frozen Arctic plain, a wolverine moves low through the snow, muscles rolling beneath its thick fur as it stalks across the wind-scoured ice. Ahead, a massive polar bear lies resting near a ridge, barely stirring as the smaller predator closes the distance. In a sudden burst of violence, the wolverine launches forward, leaping with shocking speed and clamping its jaws onto the bear’s throat. The bear erupts in rage, rearing up and roaring as it thrashes through snow and ice, but the wolverin