Why was Galileo put in Jail for his writings about gravity?
The Pope was angered by Galileo's work proving that Earth was not the center of the universe.
Inside, You'll Find:
Why gravity keeps us from floating into outer space;
A timeline, photos and how gravity works on other planets;
Surprising True facts that will shock and amaze you!
Table of Contents
1 What Gravity is and What it Affects
What are the differences between mass, matter, and weight? 7
2 How we used to think about Gravity
How did Galileo Galilei change people's ideas about the universe? 13
3 Gravity Becomes Clearer
What question did Newton ask about gravity's effect on the solarsystem? 23
What are the side effects of being in space? 28
4 Einstein Explains That Space Bends
How can we show that big objects attract smaller ones? 31
5 Gravity, Light, and Stars
What does gravity have to do with black holes? 35
True Statistics 43
Important Words 46
About the Author 48