Jack and Travis have been best friends forever, and today they decided to meet up to go for a walk in the woods

Hey Travis! I like your new orange shirt, it looks good on you!

Thanks Jack! I had a question for you that has been bugging me all day

Sure! What's your question? You can ask me anything

There is a thing on earth called gravity, it pulls two things together and never lets them go.

Well, why don't we float in the air like people in outer space?

This is the Sun using gravity to pull all the planets together, keeping them in line.

Where can I find gravity? I want to see what it looks like and feel what it feels like.

It's all around us and it is invisible, it's doing its job right now by keeping us on the ground.

Travis really wants to understand what gravity is so Jack is going to try to tell and show him what gravity is.

Jack: Well Travis, you can't see gravity, but you can sure see what happens without it!

Who discovered gravity and how did they do it?

It was discovered by a guy named Issac Newton and he discovered it by and apple falling on his head.

No, He died in 1727

Is he still living?