A pipe that copies DNA using the heat of a lightbulb. Biology's equivalent of an office copier is a PCR machine. PCR, short for polymerase chain reaction, is now a staple in crime-scene forensics, heredity
Little Free Library is a creative idea, thought up by Todd Bol and Rick Brooks, that aims to promote literacy and bring communities together by putting up mini libraries in neighborhoods around the world.
This story appears in the April 23, 2012, issue of Forbes Magazine. Last year Golan Levin’s son decided to build a car. Aside from the minor inconvenience of being 4 years old, the younger Levin faced