
human eye
18
MENTIONS
6
EPISODES
6
PODCASTS
Search complete. 18 mentions across 6 episodes found for "human eye".
Oct 26, 2026
The evolution of the human eye - Joshua Harvey
A
3:37Addison AndersonNARRATOR
a tough white outer layer known as the sclera to maintain its structure, and tear glands that secrete a protective film.
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3:45Addison AndersonNARRATOR
But equally important was the accompanying evolution of the brain, with its expansion of the visual cortex to process the sharper and more colorful images it was receiving.
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3:56Addison AndersonNARRATOR
We now know that far from being an ideal masterpiece of design, our eye bears traces of its step-by-step evolution.
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4:04Addison AndersonNARRATOR
For example, the human retina is inverted, with light-detecting cells facing away from the eye opening.
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4:11Addison AndersonNARRATOR
This results in a blind spot, where the optic nerve must pierce the retina to reach the photosensitive layer in the back.
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5:01Addison AndersonNARRATOR
So if you could design an eye, would you do it any differently? This question isn't as strange as it might sound.
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5:08Addison AndersonNARRATOR
Today, doctors and scientists are looking at different eye structures to help design biomechanical implants for the vision impaired.
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5:16Addison AndersonNARRATOR
And in the not-so-distant future, the machines built with the precision and flexibility of the human eye may even enable it to surpass its own evolution.
TWiS 232: The Lunar Dump - Over 800 GB of Moon Data
R
35:58Rod PyleHOST
We've got decades and decades of increasingly high resolution images of every nanometer of the lunar surface, at least within, you know, a certain, uh, equatorial distance.
R
36:11Rod PyleHOST
So they made a very big deal about, "Yes, but we're seeing it with human eyes." I thought, this sounds like a rationalization.
C
36:18Chelsea GohdGUEST
[laughs]
R
36:19Rod PyleHOST
What, what was it that's so special, if you know, about seeing it-
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36:22Chelsea GohdGUEST
Yeah
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36:22Rod PyleHOST
... with human eyes versus instrumentation?
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36:25Chelsea GohdGUEST
Well, there are, there are a few things that they...
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36:28Chelsea GohdGUEST
Like, seeing it with human eyes was really- The best, and in some cases the only way to really make these observations, um, the main one being the impact flashes.
This Week in Space 232: The Lunar Dump
R
36:28Rod PyleHOST
We've got decades and decades of increasingly high resolution images of every nanometer of the lunar surface, at least within, you know, a certain, uh, equatorial distance.
R
36:41Rod PyleHOST
So they made a very big deal about, "Yes, but we're seeing it with human eyes." I thought, this sounds like a rationalization.
C
36:48Chelsea GohdGUEST
[laughs]
R
36:49Rod PyleHOST
What, what was it that's so special, if you know, about seeing it-
C
36:52Chelsea GohdGUEST
Yeah
R
36:52Rod PyleHOST
... with human eyes versus instrumentation?
C
36:55Chelsea GohdGUEST
Well, there are, there are a few things that they, like seeing it with human eyes was really- The best, and in some cases the only way to really make these observations, um, the main one being the impact flashes.
C
37:08Chelsea GohdGUEST
So these tiny, like just a couple-inch long little rocks hitting the moon, no atmosphere to slow them down, just, you know, barreling into the moon.
TWiS 232: The Lunar Dump - Over 800 GB of Moon Data
R
35:58Rod PyleHOST
We've got decades and decades of increasingly high resolution images of every nanometer of the lunar surface, at least within, you know, a certain, uh, equatorial distance.
R
36:11Rod PyleHOST
So they made a very big deal about, yes, but we're seeing it with human eyes, and I thought, "This sounds like a rationalization."
C
36:18Chelsea GohdGUEST
[laughs]
R
36:18Rod PyleHOST
[laughs]What was it that's so special, if you know, about seeing it-
C
36:22Chelsea GohdGUEST
Yeah
R
36:22Rod PyleHOST
... with human eyes versus instrumentation?
C
36:25Chelsea GohdGUEST
Well, there are, there are a few things that they, like seeing it with human eyes was really the best, and in some cases, the only way to really make these observations, um, the main one being the impact flashes.
C
36:38Chelsea GohdGUEST
So these tiny, like, just a couple-inch long little rocks hitting the Moon, no atmosphere to slow them down, just, you know, barreling into the Moon, um, they were happening too fast for them to capture them, uh-
This Week in Space 232: The Lunar Dump
R
35:58Rod PyleHOST
We've got decades and decades of increasingly high resolution images of every nanometer of the lunar surface, at least within, you know, a certain, uh, equatorial distance.
R
36:11Rod PyleHOST
So they made a very big deal about, "Yes, but we're seeing it with human eyes." I thought, this sounds like a rationalization.
C
36:18Chelsea GohdGUEST
[laughs]
R
36:19Rod PyleHOST
What, wh- What was it that's so special, if you know, about seeing it-
C
36:22Chelsea GohdGUEST
Yeah
R
36:22Rod PyleHOST
... with human eyes versus instrumentation?
C
36:25Chelsea GohdGUEST
Well, there are, there are a few things that they, like seeing it with human eyes was really the best and in some cases the only way to really make these observations.
C
36:35Chelsea GohdGUEST
Um, the main one being the impact flashes.
How do you define color?
K
18:06Krys BoydHOST
We've taken pictures of at least the bright side of the moon for a really long time.
K
18:11Krys BoydHOST
How much better is the human eye at distinguishing color than even the best cameras? So much better.
K
18:17Kory StamperGUEST
Even with all of our technological expertise and all of the innovations we have, the human eye is the best tool we have for distinguishing what's called fine color distinctions.
K
18:29Kory StamperGUEST
And even when people say, oh, I'm not very good at matching colors, you're still better than most of the instruments that we have.
K
18:38Kory StamperGUEST
And so what's fascinating is that there's this big push in color science towards standardization, regularization.
K
18:46Kory StamperGUEST
There's a lot of development of new technologies.
K
18:49Kory StamperGUEST
But ultimately, the human eye perceives more colors than any tool can and perceives fine color differences better than anything else.
K
19:00Krys BoydHOST
So Paul Carhart wants really good color definitions in the dictionary, and he decides that he needs to hire scientists to do this.