Especially when you start to study physics, you're starting to understand the world as Newton understood it. First and foremost, we'd wanna include Isaac Newton. You could kind of say this is some of the most prominent thinkers in physics, but this is by no means a complete list. But some of the, I guess you could say foundational thinkers in physics are these gentlemen that I have here. In fact, I'm sure we don't know who the first physicists were. Now when we think of physics, it's been studied by humanity for a very, very long time. At its essence, it's all about trying to explain the complexity of the universe, predict what is going to happen based on simple ideas. We're going to explain, we're gonna think about what are the the different types of forces out there, and why they might, why they might actually exist.

Some of the things that I just mentioned, these ideas, we're gonna explore ideas of energy. And the one thing that I always loved about physics, and I don't think it's always fully appreciated, sometimes as you start to learn physics, you'll see all these complicated formula, all of these kind of complicated problems, but it's super valuable to realize it's all coming from some of these basic ideas. You can explain all sorts of complex phenomena. We'll go into much more depth in future videos. What we'll see with even a handful of very simple ideas like this. We'll learn things like accelaration is equal to change in velocity over change in time. Displacement is equal to velocity times time. We're gonna think about things like displacement, and I'll put it as a vector quantity, and we'll soon learn more about vector and scalar quantities are. And we're gonna talk about force and acceleration as vector quantities. Simple or elegant mathematics like force is equal to mass times acceleration. All of this complex phenomena that you see around us, whether we're looking at a galaxy or we're looking at ocean waves, or we're looking at even biological systems, we'll see that a shocking amount of them can start to be described using some fairly elegant mathematics that we can build on and continue to build on. And we're going to see that more and more and more as we go into physics. And that fundamental question that you might have said, 'Well you know, hey, why am I learning this math?' Well one, 'cause the math is beautiful, but also you will see that it starts to, in almost the most pure way, describe the structure of the universe. So this is biology right over here, which is built on a foundation of physics, which is highly dependent on some of the math that you've been learning your whole life and that you will continue to learn.

And so even biology, even what we are, is built on a foundation of chemistry. It boils down to interactions between atoms and even mechanical properties of our bodies.

And then even when we think about ourselves, our bodies, even our consciousness, our brains, it really all boils down to chemistry and physics. So chemistry, chemistry is actually laid down on a foundation of physics. When we think about chemistry, when we think about chemistry, which is at the end of the day interactions between atoms, those interactions are really physics-based interactions. But physics is the foundation for all of the other sciences. Now a lot of times, we think physics is only limited to things like cosmological phenomena or getting rockets into space, or how waves move or building structures. And physicists will the the first to admit that they are just beginning to understand the nature of reality, the nature of everything around us. And physics really does try to use that mathematics along with some core ideas to explain the phenomena, all the phenomena, of the universe. So you have math, which is very pure, and then on that foundation of math you have physics. In the field of physics, which you could view maybe right after mathematics as the purest of the sciences. I could imagine that even the earliest human beings, or possibly pre-human beings had asked themselves the questions, 'Why am I here? What is the nature of reality? 'Why is the universe organized the way that it is?' And these questions are what we attempt to answer in the field of physics.

Physics science lessons