字幕表 動画を再生する 英語字幕をプリント There are so many wonderful colors in the world - canary yellow, cadmium green, ultramarine. ULTRAMARINE! But how exactly do we get to see these amazing colors? Well all color begins with light. So as the sun beams down overhead, it's actually casting the entire spectrum of colors over you. When that light hits an object - like an apple - the object absorbs some and reflects the rest. Whatever wavelengths of light are reflected back are the colors you see. So that ripe apple has a wavelength of about 650 nanometers, which is science talk for the color red. That amazing kaleidoscope of colors gets seen by your eye through three different types of color receptors: red, green and blue (if you didn't know, that’s RGB. now you know). Theses are found in cells called cones in the back of your your eye. They are responsible for photopic or daytime vision and see the full spectrum of colors that can be made from these three colors. There are also rods in your retina that allow you to see, but they are responsible for scotopic or night vision. So humans have three color receptors that allow us to see the rainbow, but what if I told you there are animals that have more than three? Well the mighty mantis shrimp has an incredible twelve different photoreceptors in its eye. That’s four times more than us! This tiny creature can see a vast array of colors that are impossible for us to ever see. It’s probably like looking at a quadruple, super mega rainbow all the time. Wowza**** Want to know more about what happens to our eyes? I think you’d love this explanation why we get those sagging, tired bags under our eyes.