Optical Illusions

Some optical illusions- akin to vandalized to tampered-with traffic signs, could cause vehicular accidents which might take human life.l It would be extremely difficult to prove this as a cause- unless it was a traffic sign that had been painted over no through traffic to ( Through Traffic) or something of the kind. in dim light , even a skilled motorist might be taken in, it can happen.

Illusions on a Double Dimple was created in 1973-06.

By creating shadows and altering light intensity.

Your blood is bright red in the artery and dark red in veins. You do not have [ blue blood ] . It only appears blue because the veins which are white are are carrying dark red blood and being viewed through the skin which difuses the light and makes them appear blue.

that is partly true but I have herd from all my teachers that your blood is blue in the arteries. Which when you get cut the air puts oxygen in the blood stream that makes the blood turn red.

answer #2

The statement that blood is blue inside the body and turns red when in contact with blood makes little sense. How can this be so when blood itself is used to transport oxygen throughout the body? It is not possible for blood to be blue inside the body as well as carry out one of it's main functions.

Answer#3

Actually blood is red in the arteries and blue in the vein. Blood in the artery has already combined with oxygen whereas blood in the vein has yet to receive oxygen. So in fact there is both red and blue blood. When a vein is cut open it hits oxygen in the air causing it to turn red.

Answer#4

The protein hemoglobin, which carries oxygen in the blood, changes shape when it binds oxygen. When it changes shape, it absorbs different wavelengths of light, making it change color. When blood is exposed to air, much more of the hemoglobin absorbs oxygen than had in the vein the blood came from (in the veins, the hemoglobin has already given up most of its oxygen to the body). Therefore, the blood turns red.

This also means that blood in the body, once it has been oxygenated, is also red, though much more so when it reaches open air. I think it would be a fun experiment to put your hand in a vacuum chamber with a tight seal around your wrist and prick your finger to see the difference in blood color.

The suspension ligament holds the lens in a position and changes the focus so you can see everything clearly and properly

The water becomes a refractor.

Optical illusions are naturally found in nature, but were not studied until 450 BC in Rome. Roman thinkers correctly surmised that people's senses could play tricks on them. Optical illusions were not studied in depth until the 1800s.

yes you can. but it just might be a bit different for others

The muscles in the eyeball pull the shape of the lens (the black bit !) to change the focus of the eye. This takes place very quickly, so you hardly notice it.

an optical illusion misleads us about the relative size or distant of an object by placing it in an unexpected situation

Opponent-process theory by Ewald Hering

It's called a Mirage (meee-rahhh-juh): an illusion created by light rippling in heat waves.

Sufism is part of Islam . All true sufis practice Islam and shariah . Hence they have no other view , their view is same as is islamic view . Women have rights as mentioned in Qu'ran and Hadith .

A mirage

Light rays are bent to produce a displaced image of distant objects or the sky.

Since water reflects a mirror image of the sky or the land around it, light bent while passing through a layer of hot air to produce a displaced image is easily interpreted by a person as a body of water in the distance - especially if they are thirsty and hoping to find water and thus somewhat inclined to see what they want to see.

Yes it is possible to re-use false lashes, some makes and brands are better for this than others. Please take a look on the related links for a review on some good ones that can be re-used and a write up containing lots of information on how they can be used, this was wrote by my sister who uses them

Whether in Business, Art, Entertainment, Technology or Magic. The practitioner will be aware of all of their flaws and mistakes. The audience, however, only sees the final product. To the audience, a sufficient quality or skill is competence.

To view your own competence, you must look through the eyes of your audience.

-Dav

These blinding Flashes are mostly protein cells, floating in Vitreous humor between the Retina and posterior capsule of the crystalline lens in the eye. because of that the vitreous humor is gelly, these cells are floating not quickly, so as they are passing the imaginary visual axis, you can feel them, if you try to concentrate on them, you'll fail. but in peripheral vision they can be seen very easily. This is not a pathology or critical period till they are very rare, but as soon as you feel them more than 10 times a day, visit an optometrist, he will help you.

Sincerely Yours

Khashayar Mehdizadehkashi

Student of Bs. in Optometry

School of Rehabilitation

Iran University of Medical Sciences

March 08, 2010

Cell: +98(912)4335199

Mustafaa Dais
It is a naturally occuring phenomenon.

when your eyes are tired

What’s the answer

They help a person who can't see very well see clearly.

Optical equipment is any device that uses light to perform its function.

mirrors

If you mean naturally occurring illusions we usually say in the desert or other hot places. What happens in those cases is that the Earth's heat (which it gained from the Sun) is warming up the air closest to the ground. As in the case of most materials this heating causes the air to expand. So it becomes lighter or less dense.

It is the "less dense" that matters here because light travels in different paths when crossing from colder air into hotter air.

This behaviour of the light rays gives the appearance of an oasis or lake in the distance, but what you are really seeing floating is an upside-down picture of part of the ground in the distance, thus suggesting that it is water which is reflecting.

On a very hot day when you are travelling a very hot road where the ground rises and falls you can see what appears to be water on the road surface. Again this is due to hotter deflecting the light rays so that you see a reflection of part of the road above the real road.

Escher