What is a wheel and axle mechanism? A wheel and axle mechanism is a simple device you make when you connect one or more wheels to an axle. They are used to help things move. A wheel is a round, flat ...

The invention of the wheel is often hailed as one of the most transformative moments in human history. Yet, for all its importance, the origins of this revolutionary technology remain murky.

The wheel, archaeologists largely agree, was invented around 6,000 years ago somewhere in Mesopotamia. Together with the axle it revolutionized human technological history and in time led to the ...

Imagine you’re a copper miner in southeastern Europe in the year 3900 B.C.E. Day after day you haul copper ore through the mine’s sweltering tunnels. You’ve resigned yourself to the grueling monotony ...

To most of us, wheels seem pretty intuitive. You’ve probably known from an early age, for example, that circular or rounded things roll more easily than boxy or angular things. Knowing this, it’s hard ...

Difficult doorknobs, funnel races, water wheels and pinwheel power! Difficult doorknobs, funnel races, water wheels and pinwheel power! The Curious Crew learns that a wheel and axle consists of a ...