full circle rainbow

full circle rainbow

Category:

Howto & Style

Tags:

• full
• circle
• rainbow

[LaAcade111]

What does this mean?

[joetman123]

Don't let dpuble rainbow guy see this. He might explode.

[chortlebird]

A typical raindrop is spherical and therefore its effect on sunlight is symmetrical about an axis through the center of the drop and the source of light (in this case the sun). The symmetry of the focusing effect of each drop is such that whenever we view a raindrop along the line of sight defined by the rainbow ray, we will see a bright spot of reflected/refracted sunlight.

[chortlebird]

The rainbow ray for red light makes an angle of 42 degrees between the direction of the incident sunlight and the line of sight. Therefore, as long as the raindrop is viewed along a line of sight that makes this angle with the direction of incident light, we will see a brightening. The rainbow is thus a circle of angular radius 42 degrees, centered on the antisolar point.

We don't see a full circle because the earth gets in the way.

By the University Corporation for Atmospheric Research.

[REDSHADOW751]

this is bullshit its a refection on the water

[revrunnertech2772]

make that double circle rainbow.

[finlarg]

@aleashasharman No it isn't. From a high viewpoint, on a sunny day and with the rain in the right place you'll always see the full circle of a rainbow. The shadow of your head will always be at the centre of the circle

[finlarg]

@My360Xbox Rainbows are circular. If you get up high enough and the rain is in the right place, you'll see the whole thing. You can test this out with a sprinkler on a sunny day.

[finlarg]

@WonderNoobie It's not a reflection. All rainbows are part of a circle, it's just that the ground is normally in the way, so you don't see the full circle.

[finlarg]

@felfazeebo That's a different kind of rainbow, this is a normal one where the sun is lighting it from behind the camera.

[finlarg]

@MsGrantula No it's not. There is no up or down for a rainbow, but we normally only see the top half because the ground is in the way. This video was taken from a tall tower so you can see the whole thing.

If you don't believe rainbows go all the way round, go and play with a sprinkler on a sunny day!

[KoushOWNs]

vsauce reassemble!