San Francisco-based Meka Robotics wants to make robots that are human-safe and human-scale, but their new S2 humanoid head is more anime than animal. And that’s not necessarily a bad thing. Mechanically, it’s a marvel: seven degrees of freedom, zero-backlash gearing in the neck, high-res cameras in each eye, and eyelids that move with the fluidity of the real thing.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.