daguti + eyes   31

We May Have Snakes To Thank For Our Acute Vision : 13.7: Cosmos And Culture : NPR
"The All Things Considered story notes, "Primates in parts of the world with lots of poisonous snakes evolved better vision than primates elsewhere, Isbell found out. It's no accident that lemurs in Madagascar have the worst vision in the primate world, she says. There are no venomous snakes [in Madagascar].""
evolvify-topics  evolution  animals-monkeys  eyes  brain  animals-snakes  eyes-vision 
march 2015 by daguti
This Is Not Yellow - YouTube
Computer screen can't show you yellow, so it shows you a mix of red and green.
video  perception  eyes  brain  eyes-vision 
february 2015 by daguti
Blue field entoptic phenomenon - Wikipedia, the free encyclopedia
Most people are able to see this phenomenon. However, it is rather weak, and many people don’t notice it until asked to pay attention.
eyes  interesting  eyes-vision 
december 2013 by daguti
A site that lets you look into space through various slices of the electromagnetic spectrum.
space  visualization  eyes  eyes-vision 
november 2013 by daguti
New Human Cornea Layer Discovered
"This is a major discovery that will mean that ophthalmology textbooks will literally need to be re-written."
paradigm-shifts-new-or-emerging-things  paradigm-shifts  eyes 
june 2013 by daguti
Will a bright infrared light damage your eyes if you look at it too much? - Yahoo! Answers
"Yes, absolutely you can hurt your eyes looking at an IR light. And if you were looking at one, you would not know that you are looking at it since it's invisible to you....
If you look at a visible light that is too powerful, you will damage your eyes. If you look at a IR light in this range that is equally powerful, you will do nearly equal damage. And you do not have pain receptors on your retina to know you are burning it. Because you don't detect it, so you wont blink or look away like you would with visible light, IR light in this range is actually more dangerous than visible light."
light  warnings  safety  eyes 
july 2012 by daguti
The Humans With Super Human Vision | Senses | DISCOVER Magazine
(Matt sent me this article via email in June 2012.)

This article is similar to the one I bookmarked in May 2009 (see delicious.com/krimsen/eyes+color) The interesting thing is that this article seems to talk about these discoveries as if they are new, when the article from 2009 (actually it was originally published in 2006) mentions the patient's name while this article says we only know her as cDa29.

UPDATE: I realized that "Susan Hogan" is a different person from patient cDa29, who is only referred to near the end of the original article. (i.e. Susan Hogan might be a tetrachromat, but she is not cDa29 who is mentioned, albiet not by that code, near the end of the original article.)
disease-color-blindness  genetics  science  evolution  color  eyes  eyes-vision 
june 2012 by daguti
Some women may see 100 million colors, thanks to their genes
Susan Hogan can't be sure, but it wouldn't surprise her if she turned out to be a tetrachromat.

A tetrachromat is a woman who can see four distinct ranges of color, instead of the three that most of us live with.

A genetic test would be needed to verify whether Mrs. Hogan truly fits that description, but it could help explain why the interior decorator can hold up three samples of beige wall paint, "and I can see gold in one and gray in another and green in another, but my clients can't tell the difference."
animals  science  eyes  genetics  nature  color  disease-color-blindness  eyes-vision 
may 2009 by daguti
F.lux: software to make your life better
Ever notice how people texting at night have that eerie blue glow?
Or wake up ready to write down the Next Great Idea, and get blinded by your computer screen?
During the day, computer screens look good—they're designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn't be looking at the sun.
F.lux fixes this: it makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.

It's even possible that you're staying up too late because of your computer. You could use f.lux because it makes you sleep better, or you could just use it just because it makes your computer look better.
tools  software  eyes 
april 2009 by daguti
New Scientist Breaking News - ‘Big Brother’ eyes make us act more honestly
In a finding that will have office managers everywhere scurrying for the photocopier, researchers have discovered that merely a picture of watching eyes nearly trebled the amount of money put in the box.
psychology  honesty  money  mindhack  eyes 
june 2006 by daguti

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