A physics course in four chapters.

Yesterday while surfing the internet I came across this series of limericks. Besides liking limericks now and then, I think this is the quickest introduction to physics I have ever seen.

A Brief History of Gravity

It filled Gallileo with mirth
To watch his two stones fall to Earth
"Their rates are the same,"
He gladly proclaimed,
"And quite independent of girth!"

Then Newton declared in due course
His own law of Gravity's force,
"It goes, I declare,
As the inverted square
Of the distance from object to source."

Next Einstein revealed his equation
Which succeeds to describe gravitation
As spacetime that's curved
And it's this that will serve
As the planets' unique motivation.

But the end of the story's not written,
By a new way of thinking we're smitten.
We twist and we turn
Attempting to learn
The Superstring Theory of Witten.

The only other thing to know is that Witten refers to American theoretical physicist Edward Witten who first proposed a complete Superstring theory.

Just the thought of Superstring theory soothes me knowing that we're all on this flight together.

Dick