You slam your hand in a door, and the experience becomes etched into your brain. You remember the swinging panel, the sound as it crushes your flesh, and the pain as your skin gives way. Your body remembers it too.
One of our ancestral species, Australopithecus afarensis, used stone tools to flay meat off bones, leaving small nicks with every cut. Now, newly-discovered marked bones push back the earliest estimates of human tool use by 800,000 years.
Computer security expert Barnaby Jack recently demonstrated how to get an ATM to spit money for minutes on end. Jack purchased some ATMs online for his research, and says the tools required to hack them cost less than $100.
To seal more car deals, Chevrolet UK looked to arm its sales force with the perfect weapon of confidence: an unstoppable handshake. Here's the secret they received from Geoffrey Beattie, Head of Psychological Sciences at the University of Manchester.