It is difficult to see once entering a dark room after being in bright light because the pupils adjust how much light goes into the eye. In the sunlight, the pupils are tiny. In a dark room, the pupils need a few seconds to adjust to open wider.
Rods in the retina are responsible for detecting low levels of light and are important for night vision and peripheral vision. They contain the light-sensitive pigment rhodopsin, which allows them to respond to dim light conditions.
Your eyes are very clever pieces of equipment. The amount of light in a dark room compared to sun light is 1000s of times different, so your eyes need to adjust to the amount of light to allow you to see things. In the dark, it will increase the size of your iris, which lets light in to the eye. When its bright, the iris shrinks to let a smaller amount of light through. The increasing and decreasing of the iris can take several seconds to adjust which is why at first you cant see anything in a dark room. If too much light enters the eye, it will permanently damage the light sensors (the rentner) at the back of your eye render you blind.
Yes, however you may have a hard time getting them to fruit. They seem to require some light in order to fruit. Oklahoma State University has a "Growing Shittake Mushrooms" fact sheet that details how to grow and fruit mushrooms.
That was quite hard to understand :S But the baby would probably have black/brown hair just like your parents etc. Your mate will also benefit in this situation, making the percentage rise even more of having a baby with dark hair and dark eyes. Now I've said that, i bet it comes out blond with blue eyes or something...
Wood bugs, also known as pill bugs or roly-polies, are small, oval-shaped creatures with a hard exoskeleton. They are typically dark brown or gray in color and have segmented bodies with seven pairs of legs. Wood bugs can be identified by their ability to roll into a ball when threatened, as well as their preference for damp, dark environments such as under rocks or logs.
Bright colors are more easily perceived when there is sufficient contrast between them and the surrounding environment. In a room filled with candles, the overall low light levels diminish contrast, making it difficult to distinguish and perceive the vividness of bright colors.
Colours should also be contrasting. Light text on a light backround is hard to see. Dark text on a dark background is hard to see. So you need to get the mix of your colours right so that it is easier to read what you have.
You have muscles in your eyes. The pupil widens when it needs more light, and gets smaller when it's in the dark. Your eyes need time to adjust.
Shining a flashlight at night will annoy nocturnal animals. Bright light hurts the eyes, and also ruins the night vision so that it is hard to see in the dark afterwards. That will annoy anyone. Bright lights also scare animals sometimes, because they don't understand what they are. This is why many animals get run over by cars after dark, because the lights make them too frightened to move out of the way.
There are 3 darks lamps that people use as light when they do it HARD
It depends on the hen's diet.
yes I think so, because if they were bright colours they would be easier to see and it would be hard for them to hunt ect.
1.not transparent or translucent; impenetrable to light; not allowing light to pass through.2.not transmitting radiation, sound, heat, etc.3.not shining or bright; dark; dull.4.hard to understand; not clear or lucid; obscure: The problem remains opaque despite explanations.5.dull, stupid, or unintelligent.By:Bencon
Magnesium is the element described. It is a silvery solid, fairly hard, and commonly found in upset stomach remedies like antacids. When burned, magnesium emits a bright light due to its high reactivity with oxygen in the air.
A flashlight.
Your eyes have to quickly adjust to the new light, which involves refocusing the lenses of your eye. An abrupt shift from one extreme to another forces the muscles to work extra hard for a few seconds, resulting in mild strain.
Usually they flash out red. Especially the large white rabbits. Another answer: The rabbit's eye colour doesn't change in a flash of sudden bright light. The pupils get smaller, but the colour doesn't change. What might make it look like a colour change is the light itself reflecting off the surface of the eye, causing a red colour -- but that is a trick of the light. Wild rabbits have dark brown eyes (so dark it can be hard to differentiate the pupil from the iris); pet rabbits do, too, but also sometimes they have red eyes or blue eyes.