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sineği neden (199tl ödüllü)


moriarty

Öne çıkan mesajlar

moriarty said:


Remus said:

moriarty said:


buralardan çıkartamadım cevabı. bana kesin bi cevap lazım kafaya taktım bunu


http://www.youtube.com/watch?v=GCYyncASZEA

http://www.telegraph.co.uk/science/science-news/10311821/Flies-see-the-world-in-slow-motion-say-scientists.html






Ekranın frame rate'i ne senin? Muhtemelen düşüktür.


refresh rate 60hz


Video'da 3.00 den başlayan yerde anlatıyor. Sineğin senin mouse'u görmesi için senin frameratein 300hz olması lazım. ama seninki sadece 60 mış.

Bilgisayar ekrarınını videoya almak gibi bir şey.
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moriarty said:

For people, the average CFF is 60 hertz (ie, 60 times a second). This is why the refresh-rate on a television screen is usually set at that value. Dogs have a CFF of 80Hz, which is probably why they do not seem to like watching television. To a dog a TV programme looks like a series of rapidly changing stills.

Having the highest possible CFF would carry biological advantages, because it would allow faster reaction to threats and opportunities. Flies, which have a CFF of 250Hz, are notoriously difficult to swat. A rolled up newspaper that seems to a human to be moving rapidly appears to them to be travelling through treacle.
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şöyle bi şey var bu arada.

"You can imagine a fly literally seeing everything in slow motion."
The effect may also account for the way time seems to speed up as we get older, Dr Jackson said.

He decided to conduct the study after noticing the way small children always seem to be in such a hurry.
"It's tempting to think that for children time moves more slowly than it does for grown ups, and there is some evidence that it might," he said.

"People have shown in humans that flicker fusion frequency is related to a person's subjective perception of time, and it changes with age. It's certainly faster in children."
More than 30 species were studied for the research, including rodents, eels, lizards, chickens, pigeons, dogs, cats and leatherback turtles.

Kevin Healy, a Phd student at the School of Natural Sciences at Trinity College Dublin and co-author of the study, said: "Our results lend support to the importance of time perception in animals where the ability to perceive time on very small scales may be the difference between life and death for fast-moving organisms."
Professor Graeme Ruxton, from the University of St Andrews in Scotland, who also took part in the research, said: "Having eyes that send updates to the brain at much higher frequencies than our eyes do is of no value if the brain cannot process that information equally quickly.

“Hence, this work highlights the impressive capabilities of even the smallest animal brains.

"Flies might not be deep thinkers, but they can make good decisions very quickly."
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