When it comes to man made mechanisms, levers are suspected to have been used as long ago as Ancient Egypt for lifting large block ... proportional to their weights. He also famously said ...

In the following activity you're asked to lift one end of a relatively small obelisk three feet. You have a lever, a movable fulcrum, weights, and supporting stones at your disposal. Your goal is ...

We conducted a test to discover the best scope for a .30-30 rifle. This might seem odd when it seems all anyone wants to do ...

The person is able to lift twice the load using ... at one end or leans back, moving the weight, one end of the seesaw moves down. Key fact When a lever is balanced it has equilibrium - the ...

The person is able to lift twice the load using ... at one end or leans back, moving the weight, one end of the seesaw moves down. Key fact When a lever is balanced it has equilibrium - the ...

Transmission jacks are especially for transmissions and can be helpful for all sorts of garages. Here are some great ones ...

This short bodyweight session is designed to work muscles all over your body, strengthen your core, and raise your heart rate ...

The leg press is a gym machine that works your glutes hamstrings and quads. WH explains how to use the leg press machine, ...

Its dual-levers keep your hands in safe positions ... After some minor setup, you simply lift the 7.7-pound weight and let it drop, striking the wedge and driving it into the log.