Photons literally the only thing you can see π
this post was submitted on 14 Mar 2024
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No, photons is what you sense. Seeing implies post processing. Looking and seeing are not the same.
Why did you post my picture? Some privacy please!
Give yourself some credit, you have way more hair than that. Sure, it's not on your head, but you do really well with what you've got.
I know this wasn't exactly your point, but studies have shown human eyes can perceive individual photons, which is pretty wild when you think about it.
This is such a Lemmy comment
I can do strawman arguments too!
Christians: You have to have faith!
Also Christians: I dont trust vaccines!
So I guess blind people would be having a real hard time with this logic
I guess you could probably say you can see photons even if you couldn't individually pick them out.
I have a vague memory that someone tested whether we can see individual photons and it turned out we can, but do not quote me on that. I'll do some searching to see if I can find a relevant study
edit: well that was easy https://www.nature.com/articles/ncomms12172
Despite investigations for over 70 years, the absolute limits of human vision have remained unclear. Rod cells respond to individual photons, yet whether a single-photon incident on the eye can be perceived by a human subject has remained a fundamental open question. Here we report that humans can detect a single-photon incident on the cornea with a probability significantly above chance. This was achieved by implementing a combination of a psychophysics procedure with a quantum light source that can generate single-photon states of light. We further discover that the probability of reporting a single photon is modulated by the presence of an earlier photon, suggesting a priming process that temporarily enhances the effective gain of the visual system on the timescale of seconds.
At night (in the dark), everything you see has fluctuating intensity. This is change in the number of photons that you detect - when there are few photons, the number of photons per second per detection cell noticeably fluctuates, and you can see that, easily.
At night (in the dark), everything you see has fluctuating intensity. This is change in the number of photons that you detect
Change in the number of photons and noise from your wetware.
But yeah, it's pretty neat that our peepers have a built-in gain system
The only faith a true scientist needs is faith of the heart.
Obligatory it's been a long road
Traveling from there to here...
I don't believe in anything that can't be observed, measured or tested.
If I am ever presented evidence of something that I have observed, measured or tested being incorrect, I will change my mind and adopt the new evidence rather than cling to my own faulty worldview.
That's science. No faith required.
This is funny. Yes athiests in the dark ages did not "believe" in radio signals because we don't believe in things we accept reality as we discover it. Which is why our "beliefs" change over time. We know there are radio signals and atoms and photons. Obsiously god not so much. no idea why they list time and thoughts in the image given the concepts have been around for quite some time.