The birds stop chirping, and the wind chimes are silent. This eerie calm that's invaded your neighborhood is just a temporary pause before the shrills and shrieks of the incoming storm.| HowStuffWorks
Albert Einstein was one of history's greatest thinkers. Although he isn't really known as an inventor, his ideas formed the basis for some of the greatest inventions ever devised. Here are a few of the man's most revolutionary discoveries.| HowStuffWorks
Where electricity is produced from a coal fired power station, how much coal is required to run a 100-watt light bulb 24 hours a day for one year?| HowStuffWorks
A light-year is a way of measuring distance, which doesn't make much sense because "light-year" contains the word "year," which is normally a unit of time. So, how does a light-year measure distance?| HowStuffWorks
