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Steam Engine
Although the exact date is controversial, some say that this is the day the steam engine was invented -
Electricity
Benjamin Franklin tied a key to a kite and proved that lighting was the same as static electricity. -
Bioelectricity
Luigi Aloisio Galvani studied bioelectricity which has to do with the nervous system. -
Electric Motor
British scientist Michael Faraday created the conversion from electric energy to mechanical energy by means of electromagnetic energy. -
Internal Combustion Engine
Samuel Brown patented the first internal combustion engine safe enough to be used at an industrial scale -
Heat Engines
French physicist Sadi Carnot declared the thermodynamics theory of heat engines and the need for compression to increase the difference between the upper and lower working temperatures. -
Telegraph
Samuel Morse showed that signals could be transmitted by sound marking the beginning of the telegraph -
Transistor
This is when the very important transistor was invneted -
Ruby Laser
Theodore Maiman's invention of the ruby laser is said to be the first handheld laser light device. -
Battery
Alessandro Volta,who invented the battery also explained the decomposition of water by an electrical current.
