American scientists have invented a kind of elastic high-heeled shoes. (photo). (photo). According to a recent report in the US media, American scientists have invented a kind of elastic high-heeled shoes. The revolutionary high-heeled shoes have springs on their heels. Scientists at New York University say the shoes are designed to imitate the principle of cheetah's claws. They imitate the gait of animals. Designers hope to wear them to increase walking speed and reduce weight.