 Good morning, everyone, and welcome to this online class. Click present when I call your name. Jack, okay, Peter, okay. Charles, present, okay. I listen to that. So I know this is a bit unusual, but I really hope we can study well. I want us together to try to grab the knowledge from this class. What did he just say? The interdimensional black holes had particles that killed everything in the Big Bang. If you have any questions, feel free to raise your hand and I will not see you. Radon accumulates in places where ventilation is an addict, such as in the ground or mine, maybe build up inside to a very long term exposure to high levels. Let me ask a question to Charles. What is the sixth noble gas? Answer by pressing the microphone. Radon, good. Next thing I want to ask is, someone appears to have forgotten to turn off his microphone. Charles, I can feel that you're not listening. Can't see you, but I can feel it. I am listening. Oh yeah? What was I saying? Shit, it's not fucking it. Okay, I'm kicking you out. Get out. I don't want you in my class. Yes. Doesn't sound like it, but luckily, I know that I can trust you. Yes. I can see that all of you are online and listening, which is great. Let's move on. Fundamental idea and science eloquently, but forth by none other than the Nobel Prize-winning physicist, Richard Feynman. Theory that we ever invented, the Big Bang Theory, Gravitational Theory, automatic theory, are all modeled online. I love online classes. Okay, class. Before the lesson ends, if you have any questions, please ask now. Yeah, sir, I had a question regarding,