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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
Why does d look like b in the mirror?
because the mirror is just showing the picture backwards---its reflecting back
How many DWDM optical channel of 50 MHz can be transmitted in a CWDM optical channel?
120 channels / 80 channels on C band and 40 on L band
How timesharing creates the virtual machine illusion?
Timesharing creates the virtual machine illusion by allowing multiple users to interact with a single physical computer simultaneously, giving each user the impression they have their own dedicated machine. This is achieved through rapid context switching, where the operating system allocates CPU time to different processes in quick succession. Additionally, the use of virtual memory enables each process to operate in its own isolated environment, further enhancing the illusion of a separate, private system. As a result, users can run their applications without being aware of the underlying shared resources.
Why do i see and hear things that arent there?
We humans are EXCELLENT at recognizing patterns; sometimes TOO good, as we sometimes "recognize" a pattern that isn't there. Our brains see and hear fragments of images and sounds, and we sometimes identify those images and sounds inaccurately, because the parts that we DID observe fit (poorly) into a pattern that we had already seen.
So we "see" things that we EXPECT to see, and we hear what we expect to hear. And sometimes it's tough to take a second look and try to re-evaluate the old familiar pattern.
Focal length is defined as the distance between the lens and the image sensor when the subject is in focus. It determines the lens's magnification and field of view; shorter focal lengths provide wider angles and greater depth of field, while longer focal lengths offer narrower angles and a shallower depth of field. In photography and optics, it plays a crucial role in how images are captured and perceived.
What is value of 2004 dime where the 4 is so weak you can hardly see it with a magnifying glass?
Ten Cents. If the digit was completely missing you might have a "struck-through" error worth a dollar, but weakly struck elements reduce the numismatic value of a coin.
What happens if you always keep one eye closed?
After a long time the brain will decide the eye is bad and quit using it. You will then be blind in that eye.
This effect is an example of "use it or lose it".
How long does it take your eyes to adjust to darkness after being exposed to light?
a few minutes--it takes longer to adjust to darkness than to adjust to light
fun fact: people who lack vitamin A often suffer from night blindness
Why the persons with colored eyes have poor vision?
Everybody has colored eyes, usually brown or blue. Poor eyesight can be hereditary or coming from a illness or age.
If you use blemished mirrors, then you cannot.
How do you get particle illusion free forever?
To obtain Particle Illusion for free, you can look for special promotions or giveaways from the developer, Boris FX, as they occasionally offer free trials or limited-time access to their software. However, it's important to note that using pirated software is illegal and can expose your computer to security risks. For long-term use, consider purchasing a legitimate license or exploring alternative software that fits your budget. Always prioritize ethical practices in software usage.
Optical detection refers to the process of identifying and measuring light signals using various optical devices and techniques. This can involve sensors, cameras, and photodetectors that capture light across different wavelengths, enabling applications in fields like telecommunications, imaging, and environmental monitoring. Optical detection is essential for converting light into electrical signals for analysis and interpretation. Through advancements in technology, it has become increasingly precise and versatile.
Why does it feel like there is sand in your eyes when you wear contacts.?
Well, it is obvious!!! You have not inserted your lens properly or there is a foreign body on it and should be washed in solution to clear it.
What are the pairs in the opponent process theory?
opposite of yellow, according to opponent-process theory
Who discovered optical illusions?
There are several reports of the optical illusion being discovered by several people. The optical illusion was first noted by Aristotle. History also states Galileo Galilei, and American psychologist Joseph Jastrow also discovered the optical illusions.
Do mirrors really make images that are right left flipped?
No. The proof is to stand before a mirror and to have a friend lay down in front of you facing the mirror. If you raise your left hand you may be fooled into thinking that a right-left flip has occurred. But if that is so, why is your friend's head not flipped in position with his feet? When he raises the free hand, it may appear that there is a flip, but you still appear upright.
This is a strong and extremely persistent illusion that we create in our minds. The illusion is based on a simple and obvious fact: our BODIES are right-left symmetrical to a very high degree, but they are NOT up-down symmetrical. Why would a mirror not reflect back this basic symmetry? What you see reflected back when you lift a hand is the mirror image of the hand you raised. Another perspective would be to see your reflection as an image 'from behind', something a little like those concave sculptures that make it appear that a face is following you as you pass.
