The stones studied by the team predate the cart wheels of the Bronze Age by thousands of years, highlighting a key milestone in the development of rotational tools. Newly unearthed stone tools reveal ...

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 ...

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 ...

Rail bogies, bogie suspension, rail cart wheels, and axles form crucial components of rolling stock. The rail bogie framework fitted with wheels, suspension, and axles supports the rail body and ...

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 ...

Hundreds of thousands of years before the invention of the wheel, some unlucky hominin stepped on a loose rock or unstable log and—just before they cracked their skull—discovered that a round object ...