A passive cooling system developed at MIT relies on evaporation and radiation and requires no electricity. The device can provide up to about 19 degrees Fahrenheit (9.3 degrees Celsius) of cooling from the ambient temperature, to help keep food fresh long...

Student asks Steve Jobs "What's the most important thing that you learned at Apple that you're doing at NeXT ?" Jobs says "Good Question" then pauses for a bit. "I now take a longer term view on people"

This is an excerpt from Prof walter Lewin's fairwell lecture on the 16th may 2011. He beautifully demonstrated Newton's third law of motion as well as the conservation of momentum at the end of this lecture