For the first time, scientists have used an imaging technique that’s so precise that it’s possible to see the different lengths of individual atomic bonds. Using a method called non-contact atomic force microscopy, IBM researchers scanned a microscopic probe with a tip only an atom wide over a nanographene molecule and measured the forces between the probe and the sample. In this colored image, the bonds with more electrons—which are also shorter—are a brighter green.
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.