Real leaves are natural energy factories that can split water molecules and create hydrogen ions. Scientists have long tried to copy the molecules involved in creating hydrogen, but a Chinese team took a different tack by creating an artificial structure based on natural leaves as templates. Early tests have shown that the artificial leaves could soak up twice as much light and produce three times as much energy as the real thing, New Scientist reports.
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.