Your pupil gets smaller and larger depending on the amount of light present. in a dark room, your pupil will get big to collect as much light as possible, so that you can see. When you look at the sun or a bright object (which you shouldn't) your pupils get smaller because they have too much light.
When a light is shined into your eye, your pupil constricts (gets smaller) as a natural response to regulate the amount of light entering the eye. This helps to protect the sensitive inner structures of the eye from damage.
They become bigger and widder
Miotic agents cause the pupil of the eye to constrict, or become smaller. Mydriasis is the opposite, making the pupil dilate like when you go to the eye doctor.
its not just parakeets its everyones eyes when light enters the eye the pupil doesnt get bigger its the color around the pupil that gets bigger or smaller the pupil is wut the light goes through. then it reflects againts the back of your eye and that's how you see things
the name of the hole that allows light to go through into your eye is: pupil
Unless s pupil gives another pupil permission to go through their locker, they should not be doing so and it is illegal.
it passes though the pupil because your pupil is really sensitive and and strong heat can go right through it
Your pupil expands in the dark in order to obtain more light. Your eyesight is interpreted by the brain with light signals, when it is dark your pupil expands to grab as much light as possible.
pupil then lense
It's called offa's dyke. Like that wall between Scotland and England (Hadrian's Wall) but smaller and less well known. Go to Chepstow, you can see some remains of it there.
Our Sun is just another star - above average, with respect to its brightness, but really nothing extraordinary, as stars go. Some stars are bigger than the sun, and some are smaller.
Gravity. The closer a planet is to the sun, the faster it must move to keep from falling into the sun. So note; the closer in; the smaller the orbit AND the faster the speed.