See inside Marine One, the soundproof presidential helicopter that can seat 14 people and deploy anti-missile defenses
With a landing zone on the White House lawn, Marine One is often the most convenient way for presidents to get from place to ...
China’s robot prosthetic hand hits 19 degrees of freedom with human-like skill
With this new lightweight prosthetic hand, activities like tying knots, combing hair, and playing chess could become much ...