The closer we can make life to a comic strip, the better off everyone will be. Here's an easy way to make homemade speech bubbles.
Affix a piece of chalkboard contact paper to black foam board.
Draw speechbubble shapes on the board with chalk.
Cut out the shapes with an X-Acto knife.
Write a message on the speech bubble, position it near the subject’s head, and take a picture.
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.