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Optical Illusions
Optical illusions are visual images that differ from reality imagery. Literal optical illusions are different from the original images, physiological illusions are afterimages that follow a bright light, and cognitive illusions are unconscious inferences like distorting. Ask questions here about perception, depth, color, brightness, and patterns.
413 Questions
Surf to pal park(below sandgem...check map) a soon as you get to shore go south through a patch of grass and there should be a female ace trainer and her Pokemon are:
Cherrim: lower 30's
Marill:lvl. 32
Lopunny:lvl. 34
Have a great day!!
Y do everyone take it so hard. Here is a easy one that you don't have to travel that far. OK go to Iron city and go inside the cave. Go down the right stairs and look fo a camper. Battle her/him and she/he will have cherrim
Iron city??????
he means iron island.
An illusion is something that is erroneously perceived or construed.
When you deadhead flowers do you take just the flower or the entire stalk as well?
On roses clip back to next leaf, on daylilies take the entire stalk, otherwise just pop the declining bloom off.
The best way to deadhead is to remove only the faded flowers. Once all the flowers on a stem have been removed, then cut the stem back to a bud or leaf or to its base. Another way is to disbud, which is to take off the smaller buds to promote the larger ones.
What is so scary about the optical illusion with the blue rubbish bag?
There is notging scary about it LOL
What can you use if allergic to eyeglasses with polycabonate lenses?
Most allergies to eyewear arise from the nickel metal in eyeglass frames, even frames that claim to be another metal (ie-titanium) usually still have trace amounts of nickel metal in them. If the metal on the frame is turning green where it touches your skin, this is usually a sign of nickel metal allergy.
If you do truly have an allergy to polycarbonate lenses (which I've never heard of) you can just use standard plastic (CR-39) or glass lenses.
Your lens are not ground correctly for eye axis rotation, the problem can be fixed but you'll probably have to see an opthamologist MD.
What is keratometry and two way to write the result of measuring cornea curvature?
Keratometer is a device, which can be use to measure the curvature of the Cornea, in order to fit the contact lenses on it. The result ofcourse, is believed to measured only the Corneal Power and Astigmatism of the outer surface of the cornea, but there is a way to calculate the total Astigmatism amount for the eyeball, with using the Javal's law.
There are 2 ways to write the result of Keratometry, which are standard.
for example, we have calculated an amount for an eye like this:
43.00@90 & 46.00@180 => the Clinical result : -3.00X90 ATR (against the rule)
Now, to write the standard prescriotion, there are 2 way:
1- 43.00/46.00@180
2- 46.00X90
"@" Means Meridian
"X" Means Axis
Sincerely Yours
Khashayar Mehdizadehkashi
Student of Bs. in Optometry
School of Rehabilitation
Iran University of Medical Sciences
March 08, 2010
cell: +98(912)4335199
How do we see in 3 dimensions?
We see in three dimensions because of the action of our two eyes. Our brain perceives two images simultaneously from two angles, giving us the perception of depth. This is the reason one loses their depth perception with only one eye.
What will happen if you remove the glasses while watching a 3d movie?
Well, you won't see the 3D effect. Instead you will see 2 separate images.
Try it.
If you look through the bottom of a glass beaker everything looks distorted why?
The glass at the bottom is not of uniform thickness and not of optical quality. The rays of light from the objects that you are looking at are, therefore diffracted and absorbed in different ways. This causes the distortions.
They should be. Unless one eye is more round then other which would cause less sight in that eye.
Why does the sun appear larger at dawn and at sunset?
Anything which is part of the normal landscape or sky (trees, hills, birds,clouds, planes) usually looks smaller when they're near the horizon. The reason for this is simple: stuff near the horizon is generally more distant. Just take trees in the landscape, or a road disappearing in the distance as an example. Because of this our brain knows and expects that objects at or near the horizon appear particularly small compared to their true life size.
What song has the lyric millions of eyes can see so why are you so blind?
The Bee Gees did a song called HOLIDAY who had the lyrics:
Millions of eyes can see
yet why am I so blind?
When the someone else is me
It's unkind, it's unkind.
DF
Op Art
Why cannot a human can see things near than 25 cm?
Humans typically struggle to see objects closer than about 25 cm due to the limitations of the eye's lens and the focusing mechanism. The eye has a minimum focal distance, known as the near point, which is the closest point at which objects can be clearly focused on the retina. As objects move closer, the eye's lens cannot accommodate enough to focus the light properly, resulting in blurred vision. This near point can vary with age and individual differences, becoming further away as people get older.
How do optical illusions prove that you cannot always believe it?
Optical illusions demonstrate that our perception can be easily manipulated, leading us to see things that aren't there or misinterpret visual information. They highlight the gap between reality and our interpretation of it, showing that our brains can be tricked by contextual cues, colors, and shapes. This serves as a reminder that our senses, while generally reliable, can be deceived, teaching us to question our assumptions about what we perceive. Thus, optical illusions illustrate that seeing is not always believing.
