In this article, we will quickly understand what's the difference between the Russian S 500 and S 400 missile defense systems? And then we will also understand why it took Russia so much time to produce the S- 400 system. And…
The Statue of Liberty We'll take a quick look at the history, how the statue was built and where you can go on the inside. The statues official name is liberty enlightening the world, but today it's known as the statue of…
Nikola Tesla made his contribution in the mechanical engineering field too. Look at one of his favorite inventions, a bladeless turbine or tesla turbine. The tesla turbine had a simple, unique design, yet it was able to beat the …