Newton's Cannon

Like most of the classical scientists, Sir Isacc Newton was a dreamer too. Some of his dreams led to the amazing discoveries that he is famous for and laid the foundation for theories, most of which stood the test of time for well over three centuries.

Newton' Cannon, came about as a result of once such dream, a thought experiment - to be precise: Sir Isaac dreamed of the path of a cannon ball in the event of it being horizontally fired by a cannon at the top of a high mountain.

Had it not for the gravitational pull by the Earth, Newton argued, the cannon would have moved horizontally along a tangential path. Since the gravitational pull exists, he imagined the cannon ball approaching the surface of the Earth - at relatively low speed.

If the speed is high enough, Newton said, the cannon ball would orbit the Earth exactly like our moon.

Please make sure you change the speed before firing the cannon ball.

Newton Cannon

Speed

 

Newton outlined his thoughts in a booklet called, A Treatise of the System of the World. What Newton envisioned in this thought experiment is as follows:

Newton cannon ball

 

 

Recommended Reading

advanced level physics

 

The best book for both teachers and students to learn physics - exactly like in the good old days:concepts are clearly explained in detail;no meaningless cartoons to devour space;the author rendered a great service in his unique approach for generations of students, with this being the fourth edition.

GCSE Physics - Flash Cards

Amazon Best Seller

 

Physics flash cards have become an Amazon Best Seller; they are intuitive and summarizes the topic contents really well in beautiful layouts. They are vital for your forthcoming exams.

A Level Physics - Flash Cards

 

It's not easy to find flash cards for A Level physics. These cards fill the void with lots of cards, covering the major topics that you need to know. The layout is beautiful and inspiring.