Why is this gallery different from all other galleries? Because it will give you enough science facts to guarantee you sound like the wise son at any seder. In honor of Passover week (April 8 through 15th this year), PopSci serves up a schtickel of science for each item on the seder plate.
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.