Usually it’s a problem when you can’t remember a password. But in this particular case, it’s by design. A new security technique mashes up cryptography with neuroscience to create passwords that are stored in users' brains but cannot be recalled, recited, or otherwise extracted by another party.
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.