I was wondering if you could maybe teach me a little physics.

Physics encompasses the entire universe from quantum particles to supernovas, from spinning electrons to spinning galaxies.

How are you going to take notes without a notebook.

Well, how else are you gonna study for the tests?

Physics comes from the ancient Greek word, Physica.

It's at this point that you'll want to start taking notes.

And physica means the science of natural things, and it is there in ancient Greece that our story begins.

It's a warm summer evening, circa 600 B.C.

You've finished your shopping at the local market or Agora.

And you look up at the night sky, and there, you notice some of the stars seem to move.

Does this have anything to do with Leonard's work?

This is the beginning of a 2600-year journey we're going to take together, from...

The ancient Greeks, through Isaac Newton, to Niels Bohr, to Erwin Schrodinger, to the Dutch researchers that Leonard is currently ripping off.

As I was saying, it's a warm summer evening in ancient Greece.

Now remember, Newton realized that Aristotle was wrong and force was not necessary to maintain motion.

So let's plug in our 9.8 meters per second squared as A, and we get force, Earth gravity, equals mass times 9.8 meters per second per second.

So we can see that MA equals MG, and what do we know from this?

-♪♪♪♪ we know that Newton was a really smart cookie.

No, Fig Newtons are named after a small town in Massachusetts.

Now, if M-A equals M-G, what does that imply?

Have you suffered a recent blow to the head?

really of those 2 explanations which 1 seems the most likely

So then I'm trying to understand but you're going too fast, Can you just back up a little bit?

It's a warm summer evening in ancient Greece.

At what point did you begin to feel lost?

Where were we looking up at the night sky?

Unlike objects falling in a vacuum, which...

For example, I cry because others are stupid and it makes me sad.


Speaker 0: I was wondering if you could maybe teach me a little physics.

Speaker 1: A little physics? There's no such thing. Physics encompasses the entire universe from quantum particles to supernovas, from spinning electrons to spinning galaxies.

Speaker 0: Yeah, okay, cool. I don't need the PBS special.

Speaker 1: All right, let us begin. Where's your notebook?

Speaker 0: I don't have 1.

Speaker 1: How are you going to take notes without a notebook.

Speaker 0: I have to take notes?

Speaker 1: Well, how else are you gonna study for the tests?

Speaker 0: There's gonna be a test?

Speaker 1: Tests. Here. That's college-ruled. I hope that's not too intimidating.

Speaker 0: Thank you.

Speaker 1: You're welcome. Now, introduction to physics. What is physics? Physics comes from the ancient Greek word, Physica. It's at this point that you'll want to start taking notes.

And physica means the science of natural things, and it is there in ancient Greece that our story begins.

Speaker 0: -"Ancient Greece"?

Speaker 1: -"Hush. If you have questions, raise your hand. It's a warm summer evening, circa 600 B.C. You've finished your shopping at the local market or Agora.

Speaker 0: -$1. $2.

Speaker 1: And you look up at the night sky, and there, you notice some of the stars seem to move. So you name them Planetes, or Wanderer.

Speaker 0: -♪♪ -♪♪

Speaker 1: Yes, Penny?

Speaker 0: Does this have anything to do with Leonard's work?

Speaker 1: This is the beginning of a 2600-year journey we're going to take together, from... The ancient Greeks, through Isaac Newton, to Niels Bohr, to Erwin Schrodinger, to the Dutch researchers that Leonard is currently ripping off.

Speaker 0: 2, 600 years? Give or take.

Speaker 1: As I was saying, it's a warm summer evening in ancient Greece. Yes, Penny? I have

Speaker 0: to go to the bathroom. Can't you hold it? Not for 2600 years.

Speaker 1: Now remember, Newton realized that Aristotle was wrong and force was not necessary to maintain motion. So let's plug in our 9.8 meters per second squared as A, and we get force, Earth gravity, equals mass times 9.8 meters per second per second. So we can see that MA equals MG, and what do we know from this?

Speaker 0: -♪♪♪♪ we know that Newton was a really smart cookie. Oh! Is that where Fig Newtons come from?

Speaker 1: No, Fig Newtons are named after a small town in Massachusetts. Don't write that down.

Speaker 0: Now, if M-A equals M-G, what does that imply? I don't know.

Speaker 1: How can you not know? I just told you. Have you suffered a recent blow to the head?

Speaker 0: Hey, you don't have to be so mean. I'm sorry. Have you suffered a

Speaker 1: recent blow to the head I'm sorry. Have you suffered a recent blow to the head?

Speaker 0: No, you just suck at teaching

Speaker 1: really of those 2 explanations which 1 seems the most likely

Speaker 0: So then I'm trying to understand but you're going too fast, Can you just back up a little bit?

Speaker 1: All right. It's a warm summer evening in ancient Greece. Not that far back! Okay. At what point did you begin to feel lost?

Speaker 0: I don't know. Where were we looking up at the night sky?

Speaker 1: Greece.

Speaker 0: Damn it!

Speaker 1: There's no need to get frustrated. People learn at different rates. Unlike objects falling in a vacuum, which...

Speaker 0: -$5. M-A equals M-G... Squared?

Speaker 1: No.

Speaker 0: Aristotle?

Speaker 1: No. 500,

Speaker 0: Then I don't know!

Speaker 1: Why are you crying?

Speaker 0: Because I'm stupid!

Speaker 1: Well, that's no reason to cry. 1 cries because 1 is sad. For example, I cry because others are stupid and it makes me sad.

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what is physics