When civilizations were first spreading out across the Earth from its place of origin, traders and travelers harnessed the wind to circulate people, goods, and information from locale to locale, keeping the wheels of exchange turning as efficiently as technology would allow. Now, space sailing may take on a similar role. Fleets of “data clippers” could soon circulate around the solar system, ferrying scientific data from deep space missions back to Earth.
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.