Did you know?
Technology
Car Engine
The fastest recorded time for removing and then and replacing a car engine is 42 seconds. It was performed on a Ford Escort in 1985.
Circuit Board
The circuit board was invented in 1936 by the Austrian engineer Paul Eisler, who used it to make a radio.
Gears
The earliest written reference to gears was by Hero of Alexandria in AD 50. He invented a machine called a “baroulkos” which used a sequence of gears to lift weights.
Jet Engine
Before the 1950s jet engines were only used for combat aircraft. The first jet fighter was the German Messerschmitt 262, produced in late World War II.
Speedometer
Speedometers have been fitted to motorised vehicles since the early 20th century. They were originally called “velocimeters”.
Technology
The word comes from the Greek "technologia". It can be divided into two parts: techne, meaning 'skill', and logia, meaning 'knowledge'.
Turbine
Turbines are rotary engines that use a continuous stream of fluid, gas or liquid, to turn a shaft and power machinery.
Wind Turbines
The blades of wind turbines used to produce electricity rotate at up to 22 revolutions per minute. At this speed the tips of the blades are moving at 91 metres per second.
X-Ray
X-rays were first observed and documented in 1895 by Wilhelm Conrad Roentgen, a German scientist who found them quite by accident when experimenting with vacuum tubes.