 Hey guys, I'm Ruby and I'm currently doing a PhD in Quantum Optics at the ANU. Hi, I'm Joe Hope and I'm a professor of physics at the Department of Quantum Science at ANU. And I'm Liz Williams. I'm a researcher in the Department of Nuclear Physics at the ANU. And together we're going to be providing the content for the second semester of Year 12 Physics in the Australian Curriculum this year. Okay, so if you were to get on a spaceship and travel really close to the speed of light, you'd see all sorts of crazy stuff happening. Time would slow down and space would walk. And we're going to discuss all of that in my section on Einstein's Theory of Special Relativity. And then in my section on quantum mechanics, we're going to be learning about the fundamental theory of quantum mechanics, which describes all matter and massless stuff, basically the theory of all stuff in the universe. And following on that, I'll be teaching you guys about the standard model, which follows along from quantum mechanics quite nicely to talk about what matter is, how it interacts, and also what it has to do with how our universe came about. And together, all of these topics form at least a taste of what modern physics is all about.