Sung Hoon Kang, Boaz Pokroy, and Joanna Aizenberg of Harvard University
This shot won first prize in the photography category. Taken with an electron scanning microscope, the picture shows 250nm plastic fibers wrapping themselves around a plastic ball. The materials assumed this arrangement without any human construction, and demonstrates a new way of controlling polymer self-assembly.
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.