History week 30

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonanceof a vibrating crystal of piezoelectric material to create an electrical signal with a precisefrequency.This frequency is commonly used to keep track of time, as in quartz wristwatches, toprovide a stable clock signal for digital integrated circuits, and to stabilize frequenciesfor radio transmittersContinue reading “History week 30”

History week 28

The diesel engine (also known as a compression-ignition) and named after Rudolf.Diesel, is an internal oil engine in which ignition of the fuel (injected into thecombustion chamber) is caused by hot air in the cylinder created by the mechanicalcompression from a piston.Diesel engines work by compressing only the air. This increases the air temperature.inside theContinue reading “History week 28”