On a warm spring morning 40 years ago, I was moving a wheelbarrow full of sand to mix some mortar. My boss announced in a humorously exasperated way, “hold it, hold it, hold it.” He saw that I was ...

The soda-can tab is more than meets the eye. In its resting state, the tab is what engineers call a "second-class" lever: The force you apply only moves one way, like a wheelbarrow. When you lift the ...

We may receive a commission on purchases made from links. A wheelbarrow can be handy for both professionals and DIYers moving tools, materials, and other items. Although it's usually far more ...