elements

What Are Uncommon Earths, Important Components In Modern Day Technology? Four Concerns Answered

The earliest recognized surviving descriptions of magnets and their properties are from Greece, India, and China about 2500 years ago. By the 12th to 13th centuries AD, magnetic compasses had been utilized in navigation in China, Europe, the Arabian Peninsula and elsewhere. No will need to be afraid of these magnets just be respectful of their fantastic power. We have been promoting these magnets because the last millennium to hobbyists, and market, Nasa, magicians, Hobby Lobby, professors, Moms & Dads. We even have had a couple of people that lost the combination to their residence safes and opened them with...

How Internal Combustion Engines Operate Why Engines Have To Have Air

Controlled by the ECU, the ignition timing dictates when a spark is created in the combustion chamber to get started the engine. An electronic pump, powered by the alternator on modern vehicles, which sends fuel from the tank to the engine. In turbo-powered engines, the charge pipe carries compressed air from the turbo unit back to the engine, permitting the air to circulate for greater economy and performance. Carburettors have now been replaced by fuel injectors, but may perhaps still be located on older cars. They mix fuel and air to the correct ratio for combustion, but had been replaced...