The complexity of the brain makes it one of the most fascinating and sophisticated pieces of biology that we know of. But when things start to go sideways up there, modern medicine is often calls for treatments like surgery or shock stimulation, practices that can result in even more damage to fragile brain tissues. But a new method of noninvasive brain stimulation could diagnose and treat an array of neurological ailments using nothing but pulses of harmless ultrasound.
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.