Because AT the location of every water droplet in the air that forms your
rainbow, the angle between the direction to the sun and the direction to
your eye must be the same. The only shape for which that's possible at
every point is a circle.
The "bow" referred to in "rainbow" is the sort of bent wooden pole used to shoot arrows. The arc of colors seen in the sky resembles the arc of a tightly strung bow.
a rainbow is not shaped like a arc its a circle
A rainbow.
There are such thing as rainbow clouds. Circumhorizontal arc.
Another name for rainbow is "spectral arc."
arc en ciel means rainbow
Can be a noun. For example, the rainbow is shaped like an arc.
Described in terms of its geometry, a rainbow is an arc of a circle.
Rainbows can be seen during the daytime when there is rain and the sun is shining at the same time. The raindrops act as prisms that refract and reflect sunlight, creating the colorful arc of a rainbow in the sky.
A rainbow is a circular arc of light that forms when sunlight interacts with raindrops in the atmosphere. The size of a rainbow can vary, but they are typically seen as a semicircle with a diameter of around 42 degrees centered on the antisolar point.
Noah's ark sailed underneath the rainbow arcThe huge arc that spread across the sky was rainbow like the ark
A rainbow is simply an instance of refracted light of water droplets. This means depending on how you look at one (Eg. From the ground or from a plane) it will be different shapes. A rainbow seen from the ground will be arched, and a rainbow seen from above will be circular.