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
Between running a print shop, engineering the U.S. postal system, and helping sow the seeds of the American Revolution, Benjamin Franklin also found time to draw up a vast collection of new devices. What are some of his most enduring inventions?| HowStuffWorks
No one likes paying bills. But you wouldn't have quite so many if you lived off the grid. How do you create enough energy to ditch public utilities?| HowStuffWorks
Even though it's tiny compared to the rest of the universe, Earth is a complex planet that, so far, is the only one we know of that sustains life.| HowStuffWorks
The light bulb hasn't changed a whole lot in its 120 years -- the original design was just that good. Apparently, you can throw together a filament, a glass mount, an inert gas and a bit of electricity and change the world. Learn what happens when yo| HowStuffWorks
