money history: when,who invented money first?

History of Money

When was the money first used? Who invented money? Money is such an integral part of our everyday life that it is impossible to imagine...
who is the inventor of toothpaste

Who invented toothpaste?

When was toothpaste invented? The earliest dentists known are the Egyptians. 5000 years BC they managed to produce toothpaste in powder form. The powder consisted of abrasives...

How does an x-ray work?

What is X-Ray? An X-ray device is basically a camera. But unlike an ordinary camera where visible light exposes the film, an X-ray uses x-rays instead. X-rays...
who invented the microscope first and when?

who invented the microscope

With its original design coming to life at the end of the 16th century, and its initial application of use for scientific reasons in...