Not many people remember that Franklin was an inventor . . . and a good one, too! He also did some pioneering work in physics.
Photocopying machines are fairly complicated devices, but the basic principal is pretty simple.
Have you had to scrub your bathtub to get rid of soap scum? Learn why soap doesn't dissolve in your water.
Why does lightning appear to have a jagged and irregular shape?
Learn about the make-up of a nucleus on this Moment of Science.