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When the eye detects bright light, the iris expands causing the hole at its centre (the pupil) to shrink in size. The brighter the light the smaller the pupil becomes.
This happens because, in a dark place, the eye needs to take in as much light as possible to see better so the pupil expands; in a light place, the eye could be damaged due to over exposure to light so the pupil shrinks.
The scientific word for "shrinks" is "contracts"
What else can I help you with?
What happened if you shined a flashlight away from a black hole and flashed it every second?
Theoretically speaking, if you were inside of the black hole and you flashed a flashlight away from it, nothing would happen. This is because nothing - not even light - can escape from a black hole.
What happened during the Boston massacer?
a person flashed the cops lol
What happened to chuck when his mother flashed images in front of him in the series chuck?
He had a fit.
Can you get flashed by a camera on traffic lights?
Yes if you run a red traffic light (in the UK)
What could cause the Engine Workshop warning light to illuminate on a VW Golf MK V GT TDi?
A good question! I have the same car and the same thing happened to me last night.... The computer may as well flashed up ££££ any answers would be great A good question! I have the same car and the same thing happened to me last night.... The computer may as well flashed up ££££ any answers would be great
What does Vladimir tod look like?
Pale weak and skinny and eye dark eyes but flashed purple sometimes look his dad.
How many electrons are emitted when calcium is flashed with light of wavelength 340 nm and intensity of 50 percent?
The number of electrons emitted when calcium is flashed with light of a certain wavelength and intensity depends on the photoelectric effect, which is related to the energy of the photons hitting the metal. Without the energy of the photons and the work function of calcium, we cannot determine the number of electrons emitted.
What opening lets light into the eye?
The pupil lets light into the eye.
2001 civiv maintenance light?
When a 2001 Civic maintenance light is on the ECU is reporting that a specific service is needed on the vehicle. To reset the light the computer of the car needs to be flashed with a diagnostic tool.
What is the pathway of light?
The pathway of light is light through the eye to the cornea. This is the path that light takes when entering the eye.
What is the pathway light?
The pathway of light is light through the eye to the cornea. This is the path that light takes when entering the eye.
When did The Eye of Judgment happen?
The Eye of Judgment happened in 2007.
