Isaac Newton wondered 'what keeps earth in its orbit?';
He went outside to think and went into his apple orchard;
An apple fell and hit his head, how could he ignore this?
Then he realized they were caused by the same forces;
This was a problem now that Newton knew that he could tackle;
The sun pulls on the earth just like the earth pulls on the apple;
He went inside his house and started making calculations;
What did he find? Universal gravitation;
Between two objects there's a weak force of attraction;
The force gets stronger as we start to deal with bigger ma**es;
As the objects move apart then the force decreases;
Isaac Newton showed the world he was a true genius!
So the earth makes the apply fall rapidly;
And the sun pulls the earth around the galaxy;
When you're reaching for the stars don't get mad at me;
Only one thing can hold you down... Gravity