 Hi and welcome to another Sailor Tangent. Today we're going to be talking about St. Patrick's Day, but first I just got to tell you a couple things. One, we're going to be coming to you more regularly, and two, we got a new studio, and we got a guy in the booth that could do all kinds of crazy stuff. Be like I'm on the moon, I'm at a rock show, maybe I'm like on a mountaintop somewhere. I could be anywhere in the world. It's crazy. What? Well, I guess now is as good a time as any to talk about color. It all starts with light. Now, we were just boasting about how we're in a new studio with a bunch of fancy lights, but most of the world is lit by sunlight. Even moonlight is just reflected sunlight. It takes eight minutes and 20 seconds for light to travel from the Sun to the Earth in just a fraction of a fraction of a second to travel from me to John's Eye. John, are you on Tinder over there or something? We're trying to work. That may seem slow, but light's booking it at 299,792,458 meters per second. You might be saying, I don't know what meters are. That's fine. We also looked it up in miles per hour, and it's right here. It's right. You can see it on screen. I'm not learning another really, really big number. It's really hard to say. I'm not doing it. Those are some really big numbers, and they could be kind of hard to understand. So to try and make it more relatable to people, I went around the office and asked everyone what they thought of when they thought of something fast. The answer that came back to me was cheetah was the most common answer, which is not like a spaceship or a jet or a bullet, but we're going to give people what they want. The top speed ever recorded for a cheetah is 75 miles per hour. That would be roughly 9 million times slower than the speed of light. Light exists as part of the electromagnetic spectrum, along with radio waves, microwaves, infrared, x-rays, all kinds of rays, so many rays. The sun gives off many forms of radiation, but the vast majority that makes it through the Earth's atmosphere is light. Visible light, basically the kind of light that can be seen by humans, has a wavelength of around 400 to 700 nanometers. 400 being the violet side of a rainbow, and 700 being the red side. You know the rainbows we're talking about. You've seen rainbows in real life. You've probably seen one of those prisms that reflects the light, and you can see a rainbow on the wall. You've definitely seen Pink Floyd's dark side of the moon cover while you're trying to sync it up to the Wizard of Oz, and thought to yourself, yeah, it kind of works, but it's not like 100% lining up with it. I see what people are talking about, but there are definitely moments in the movie where there's a definite scene cut, and the track takes a little bit longer to go, and you're like, this couldn't be intentional. Wait, what are we talking about? Now, the wavelengths, as I said, were from 400 to 700. The longer your wavelength, the lower your frequency, so every color of the rainbow has a different frequency. Basically, all atoms and all objects have a natural frequency of vibration, just like every color of the rainbow has its own frequency. So when light strikes an object whose molecules have the same frequency, it turns that light energy into vibrational motion, which is then converted into thermal energy. Basically, it's why wearing a black t-shirt on a hot sunny day is a bad idea. So back to my shirt. I'm surrounded by these white lights that contain all the frequencies of light. The molecules of this shirt are all vibrating at the same frequency of all of the white light that's coming at me, except for the green, so every color by green is being converted into thermal energy, while green is being reflected back to you and John. Now, the eye is the last piece of the puzzle. The back of the eye is called the retina, and on the retina are rods and cones, probably named for the fact that they look exactly like rods and cones. Rods and cones are photoreceptor cells. Their job is phototransduction, which is basically a fancy science word for turning light into electrical impulses that the brain can understand. So this year when you're out celebrating St. Patrick's Day, you'll know that all those decorations are vibing at the same frequency. 299,792,458 meters per second. 299,792,452 miles per hour. That's not the right number. It's also not the right number, not the right number, or the right metric. Just read this. At 299,792,458 meters per second squared. What? Was that not right? Not squared. Did I say squared? Not squared. But I got the number right and I said squared. Damn it. That may seem slow, but light's booking it. At 299,792,545... That may seem slow, but light's booking it. At 299,792,458 meters squared. What? I was like, don't say squared. And I said...