Red light, green light.

Red light... green light.

Color of planet trails

When there's a lot of chlorophyil around, they see a lot of green light.

That light is green.

Garden of Coloured Lights

A beam of white light is split by a prism into rays of various colors.

It's a red light!

And speaking in terms of light, pink should probably be called minus green , because pink is what's left over from white light when you take out the green.

The color for solar system object trails.

The railroad worm, Phrixothrix hirtus, can light up its body in two colors red and green.

If checked, the color of the planet trail will be blended into the background sky color.

It's a red light!

Well, the sun emits all colors of light, so light of all colors is hitting your pencil.

It's very technological, it's very complex, a little daunting.

What is that? A reaction test?

Fade trails to background color

I saw it. Yellow light's for my eyes only.

So, what if you had a yellow pencil sitting on your desk?

There's simply no pink light.

It's not there.

Fade trail color into the background?

Fade planet trails to background color?

And you'll see that it leads with a shifting star field, and there's an Aurora Borealis in the background, kind of morphing with color.

I want to think.

Maybe not surprisingly, in the deep ocean, where it's mostly blue, the photoreceptors tend to see blue light.

Consumers don't really like these light bulbs.

But one of the most popular ones involves green fluorescent protein.

The cones, however, are a different story.

Now you can see that changes the light that's coming through there, right?

Light is resolved by a prism into seven colors.

Is it something about the details or the colors?

As you can see there are three icons at the bottom.

The lowest frequency light that we can see is red and the highest frequency is purple.

Okay, now, honey, imagine the organs in your body floating in the different colors I project on you, okay?

This is cultures, identical cultures, of cervical cancer cells.

No. No, Susan, you're, like, really glowing. You're green!

In 2008, the Nobel Prize in Chemistry was awarded for work done on a molecule called green fluorescent protein that was isolated from the bioluminescent chemistry of a jellyfish, and it's been equated to the invention of the microscope, in terms of the impact that it has had on cell biology and genetic engineering.

The sound of the waves and other environmental sounds that you can hear in the space are translated into data and visualized as light.

The point is, your brain receives the same signal, regardless of whether you see light that has the yellow frequency or light that is a mixture of the green and red frequencies.

So, how come this region, where the red and green lights mix,

And whenever they made one of the two choices, chose one odor, in this case the blue one over the orange one, we switched on the lights.

What you're seeing when you put it through a prism is that you heat hydrogen up and it doesn't just glow

(Laughter)

Look down that infinite reflection, and it will get dimmer, because some light is lost or absorbed every time, but it will also become greener, because green light, that is light of a wavelength that we perceive as green, is best reflected by most mirrors.