imple machines help us change the amount of force or the direction of the force needed to move an object. Find out how by learning more about levers. Major Funding by the Laura Moore Cunningham ...

Find out more about the wheel and axel, the lever, and the wedge. Find out more about three of the six simple machines: the wheel and axel, the wedge, the lever. Simple machines like these help us do ...

All the hullabaloo about touchscreen voting machines and the lack of a paper trail got Joyce Dewsbury wondering about the old mechanical lever voting machines. How did they record votes, and was there ...

On Tuesday, for the first time since the 1920s, not a single vote was cast for president in America by pulling a lever. The beloved metal-lever voting machines rung up their last tallies in this ...