Studying mental illnesses involves complex brain-monitoring technology to watch how neurons and large-scale brain components are functioning or malfunctioning. But researchers are increasingly getting out of their patients’ heads, monitoring brain cells in petri dishes instead. This is possible with stem cells, and it could yield plenty of new avenues for psychiatric research.
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.