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visionlaunch.com/who-invented-the-wheel-and-axle

One of the most important inventions in all of human history is the wheel and axle combination. With this invention, all tasks become much simpler. Wheels don’t exist in nature on their own and even animals don’t use wheels. The first documented artifacts that we have showing humanity using the wheel come from around 4000BC […]

www.wonderopolis.org/wonder/who-invented-the-wheel-and-axle

Other examples of the wheel and axle include door knobs, screwdrivers, steering wheels, and even egg beaters. Scientists call the amount by which a wheel and axle multiplies a force its mechanical advantage. The mechanical advantage of a wheel and axle can be calculated by dividing the radius of the wheel by the radius of the axle.

www.livescience.com/18808-invention-wheel.html

The sensitivity of the wheel-and-axle system to all these factors meant that it could not have been developed in phases, he said. ... Whoever invented it must have had access to wide slabs of wood ...

en.wikipedia.org/wiki/Wheel_and_axle

The wheel and axle are one of six simple machines identified by Renaissance scientists drawing from Greek texts on technology. The wheel and axle consists of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other.

www.answers.com/Q/When_the_axle_invented

The axle helped in many ways and it was one of the most important inventions. The axle came along with the wheel.The wheel and axle were both one if the most important inventions.

www.fourwheeler.com/.../1701-history-of-the-ford-9-inch

When the Ford 9-inch axle originally appeared in 1957 under the Fairlane and F-100 pickup truck, no one knew what an enduring legacy it would have. To put that in perspective, the top-of-the-line ...

www.thoughtco.com/the-invention-of-the-wheel-1992669

Finally, the fixed axle was invented, wherein the axle did not turn but was solidly connected to the cart frame. The wheels were fitted onto the axle in a way that allowed them to freely rotate. Fixed axles made for stable carts that could turn corners better. By this time the wheel can be considered a complete invention.

en.wikipedia.org/wiki/Axle

The liftable tandem drive axle was invented in 1957 by the Finnish truck manufacturer Vanajan Autotehdas, a company sharing history with Sisu Auto. Full-floating vs semi-floating. A full-floating axle carries the vehicle's weight on the axle casing, not the halfshafts; they serve only to transmit torque from the differential to the wheels. They ...

www.smithsonianmag.com/.../a-salute-to-the-wheel-31805121

A Salute to the Wheel ... two parts rotating on each other that sits on the front axle of a carriage and adds extra support so it doesn’t tip. ... carrying 2,160 persons per trip,” invented by ...

www.digitalhistory.uh.edu/active_learning/explorations/1492/world...

A windmill operating an organ is described as early as the 1st century AD by Hero of Alexandria, marking probably the first instance of a wind powering machine in history.Vertical axle windmills were first used in eastern Persia (Sistan) by the 9th century AD as described by Muslim geographers.Horizontal axle windmills of the type generally ...