thomas newcomen
James Watt
coal+boiler=steam engine
Coal and the steamengine.
Paravoz in Russian is a steamengine. Literally the word is composed of two Russian words Par and Voz. The first meaning - steam. The second - drive.
what did Obama invent
they invent cheese
He didn't invent it. He didn't invent anything.
Why did Ian Donald Invent The ultrasound machine and why did he invent it
Roberts helped to invent the microwave, but did not invent it by himself.
you can invent if you really want you can invent by things that are not expensive..right?
because it was fun to invent
No, but they did invent paper!