A screw-cutting lathe is a machine (specifically, a lathe) capable of cutting very accurate screw threads via single-point screw-cutting, which is the process of guiding the linear motion of the tool bit in a precisely known ratio to the rotating motion of the workpiece.
invented by Edward Jenner
The smallpox vaccine was the first vaccine to be developed against a contagious…
invented by James Watt
A steam engine is a heat engine that performs mechanical work using steam as…
invented by Nicolas-joseph cugnot
A car (or automobile) is a wheeled motor vehicle used for transportation. Most…
invented by Geaorge Medhurst
An air compressor is a pneumatic device that converts power (using an electric…
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Inventions that changed the world
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