this post was submitted on 11 Feb 2025
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Asklemmy

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[–] [email protected] 4 points 2 hours ago

That our species took millions of years of evolution and the chance for it to be exactly this way was so infinitesimal... And yet here we are, chasing arbitrary numbers on paper-slices and in some bank-account while also being sexists, racists, whatever-ists and destroying the very rock we exist on. Yet things like star trek are called utopia not actual-ia.

This always baffle me.

[–] [email protected] 14 points 8 hours ago (1 children)

I dunno whether it counts: but that science has effectively cured AIDS.

In 2004, 2.1m people died from it. Twenty years later that figure was a little over a quarter at 630k. The goal for 2025 is 250k. I think that's absolutely remarkable.

As a child in the 80s I was terrified of AIDS. It made me low-key scared of gay men because the news made it sound like I could I could get it from any one of them. And here we now are, able to provide a medication that can almost completely ensure that you will never be infected by HIV.

Astonishing, really.

[–] [email protected] 2 points 2 hours ago

Yeah.

There's waaay worse things you can catch.

[–] [email protected] 24 points 15 hours ago* (last edited 15 hours ago) (1 children)

Retinal photosynthesis, also known as the Purple Earth Theory. Colours are weird. Earth plants absorb red and blue light, they look green to us because that’s the wavelength of light that cannot be used by the chloroplasts.

It’s hypothesized that this was advantageous on Earth because blue light goes further into water than the other wavelengths, facilitating the development of photosynthetic algae

Retinal photosynthesis is another viable chemical chain reaction that could be used to create ATP (usable biological energy) from light.

It’s another molecule similar to chlorophyll, but it absorbs green light instead of red/blue - alien planets might be purple!

There’s a viable parallel evolutionary pathway that leads to plants with magenta leaves

[–] [email protected] 1 points 48 minutes ago

So humans vision is much more sensitive to green than other colors. it's why camera sensors are 50% green 25% red 25% blue. Which makes sense as being able to detect small differences in plant cover is useful in both detecting predators and prey.

https://en.m.wikipedia.org/wiki/Bayer_filter

If humans had more flat color detection range we woulda actually be able to see that the sky is purple and not blue.

[–] [email protected] 21 points 21 hours ago* (last edited 21 hours ago) (1 children)

When the moon is at its farthest orbit from earth, all of the planets in the solar system can fit in between earth and the moon.

[–] [email protected] 2 points 2 hours ago (1 children)

Just in general how spread apart everything is in space is wild. As big as planets and stars are, there’s still unfathomably more nothing in between them all. And that’s in a solar system where it’s comparatively “dense” compared to interstellar space let alone intergalactic. It makes the vastness of the ocean look tiny.

[–] [email protected] 2 points 42 minutes ago

My old school had a scale model of the solar system. It used the same scale for the planets size and distance. The sun was a 12" ball on one end of campus. Around campus were poles with little glass domes on top inside were tiny pins with little planet models on them.

[–] [email protected] 12 points 23 hours ago (7 children)

That time passes differently in galaxies with different gravities. One of these galaxies is Mormon heaven.

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[–] [email protected] 5 points 20 hours ago (2 children)

The label 'homo sapiens' for our species.

[–] [email protected] 1 points 13 minutes ago

...homo sapiens sapiens: so wise we named ourselves twice...

[–] [email protected] 1 points 2 hours ago

More like homo ignorare, yes?

[–] [email protected] 23 points 1 day ago (2 children)

the implication of einsteins mass-energy equivalence formula is mind-blowing to me. one gram of mass, if perfectly converted to energy, makes 25 GWh. that means half the powerplants in my country could be replaced with this theoretical "mass converter" going through a gram of fuel an hour. that's under 10 kilograms of fuel a year.

a coal plant goes through tons of fuel a day.

energy researchers, get on it

[–] [email protected] 3 points 9 hours ago

If mass can convert into energy that easily then we’re all in a lot of trouble…

[–] [email protected] 11 points 1 day ago (10 children)

What do you think fusion research is?

[–] [email protected] 2 points 6 hours ago* (last edited 6 hours ago) (1 children)

Studies into how to make a more efficient kettle.

[–] [email protected] 2 points 5 hours ago

I mean, you're not wrong.. XD

[–] [email protected] 11 points 1 day ago (1 children)

Just a fancier way to spin turbines with steam

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[–] [email protected] 3 points 21 hours ago

a fun fact: for the most efficient mass energy conversion, you need a huge spin black hole (preferably naked). Then you can get about 42% conversion. (there was a minute physics video about it i think)

[–] [email protected] 4 points 23 hours ago

15 years away from a useful result

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[–] [email protected] 7 points 1 day ago (1 children)
[–] [email protected] 7 points 1 day ago (1 children)

For the sake of discussion, let's say on the one hand a magic man intelligently designed life and all that. And on the other hand we have it arise and evolve over the course of billions of years of random atomic interactions and genetic mutations. I honestly find the second one far more amazing, wondrous, amazing, and mind blowing.

[–] [email protected] 1 points 2 hours ago

I don't know but imagine what crazy processes would lead to creating that magic man floating around in nothingness, without a world to evolve on.

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