Site for children


J. Perelman
"Entertaining physics". Book 1.
Chapter 2. Gravity and weight. A lever. Pressure

CATCH THE BATTLE FIELD HANDS

During the imperialist war, as reported by the Newspapers, with the French pilot has been absolutely great. Flying at a height of two miles, the pilot noticed that near his face moves a small object. Thinking that this insect, the pilot quickly grabbed his hand. Imagine the surprise of the pilot, when he was caught... German combat bullet!

Isn't it reminiscent of the tales of the legendary Baron Munchausen, as if firing cannonballs hands?

Meanwhile, in the announcement of the pilot caught a bullet, nothing is impossible.

Bullet because not all the time moving from its initial speed of 800 to 900 meters per second. Because of air resistance, it gradually slows down its flight and the end of the road - at the end - makes a total of 40 meters per second. And this speed develops and aircraft. Therefore, it can easily happen that the bullet and the plane will have the same speed, then in relation to the pilot of the bullet will be fixed or will move barely noticeable. Nothing will cost then grab her hand in glove, because the bullet traveling through the air, strongly heated.

Entertaining physics J. Perelman

 




System Orphus

SUPPORT THE SITE!

Did you like our site and you would like to support it? It's very simple: tell your friends about us!
Read MORE

  © 2014 All children