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@theartofmadeline

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occasionally subtle
i don't do bad sauce passes

祝日 / Permanent Vacation
Mike Driver
One Nice Bug Per Day
tumblr dot com

shark vs the universe
Jules of Nature

Kaledo Art

PR's Tumblrdome
Claire Keane
cherry valley forever

oozey mess
KIROKAZE

ellievsbear
2025 on Tumblr: Trends That Defined the Year

JVL
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@cosmo-nautic
just a gal logo and banner by wicca (@NZwicca on twitter)
listen to some music I’m proud of and follow <3
I still exist
i did nothing with this instrumentally, just the singing -- hope to clean up some messes + add sick bass, but that's a problem for future jas :-)
I did a cover of Bullet with Butterfly Wings by Smashing Pumpkins
rb this with ur opinion on this shade of pink:
This is magenta, and not pink. Unlike pink, magenta doesn’t actually exist. Our brain just invents magenta to serve as what it considers a logical bridge between red and violet, which each exist at opposite ends of a linear spectrum.
TL;DR this color is fake (and also I hate it)
Wait til you learn about Stygean Blue
Your brain is a badly-designed hot mess of bootstrapped chemistry that will tell you that all kinds of shit is happening that has no correlation to physical reality, including time travel. It just makes things up. Your brain is guessing about what’s happening when your eyes saccade, what’s happening in your blind spot, and what the majority of the visible light spectrum looks like, and you don’t know it’s happening because it doesn’t aid your survival to become aware that a lot of what you see is fake.
The human eye only has three types of color sensitive cones, which detect red, blue, and green light. Your brain is making up every other color you perceive.
Let’s have a little fun with that thought. This is the visible spectrum of light.
You will of course note that yellow is on the chart. Yellow has a discreet wavelength, and is therefore a distinct physical color. But we can’t see it.
“Sorry, what the fuck?”
What we call yellow is just what our brain shrugs and spits out when our red and green cones are equally stimulated. We have light receptors that can pick up on the physical spectrum of light we call yellow: that’s why yellow things don’t just look like moving black blocks to us. But your brain has no fucking idea what the color yellow looks like.
Some animals have eyes that can perceive the color yellow! Goldfish have a yellow cone in their eyes. If they could talk, they could tell us what yellow looks like. But we wouldn’t be able to understand it.
What your brain actually sees of the color spectrum:
We can measure the wavelength of light, so we know that when we see ‘yellow,’ we are seeing light in that 550-ish nanometers range. But we don’t have a cone in our eyes that can pick that up. Your brain just has a very consistent guess about what color that wavelength of light could be. We decided to name that guess ‘yellow.’ We can’t imagine what yellow really looks like any more than a dog can imagine the color red.
Here’s the funny thing: your brain is never perceiving just one photon of light at a time. Something like 2*10⁸ photons per second are hitting your retina under normal conditions. Your brain doesn’t individually process all of them. So it averages them out. It grabs a bunch of photons all coming from the same direction, with the same pattern, and goes, “yeah, that cup is blue, fuck it, next.”
That’s how colors blend in our eyes. So sure, if a photon of light with a wavelength of 550 nanometers bounces into our eyes, we see what we call “yellow.” But if we see two photons at the same time, coming from the same object, one of which is 500 nms and the other of which is 600 nms, your brain will average them out and you will still see yellow even though none of the light you just saw was 550 nms.
So how does magenta factor into this?
Well, as we’ve just established, when your brain sees light from two different slices of the visible light spectrum, it will try to just average them together. Green plus red is yellow, fuck it. If it’s more red than green, we’ll call that ‘orange.’ Literally who gives a shit, we’re trying to forage over here. There are bears out here and it’s so scary.
What happens if you take the average of blue and red light, which we perceive to be magenta? What’s the centerpoint of that line?
Fucking green.
Hey, that’s not gonna work? We live on a planet where EVERYTHING IS GREEN. If something is NOT green, that means it’s either food, or a potential source of danger, and either way your brain wants you to know about it.
So your brain goes, WHOOPS. Okay - this is fine. We already made up yellow, orange, cyan, and violet. We’ll just make up another color. Something that looks really, really different from green.
And so it made up magenta.
So, physics-wise, is magenta “real?”
No; there’s no single wavelength of light that corresponds to magenta. But you’re rarely seeing only a single wavelength of light anyway. And even when you are, every color other than RGB is a dart thrown on the wall by your meat computer. This is the CIE Chromaticity Diagram:
Explaining this thing is a little more than I want to take on on a Saturday morning, but I’ve included a link above that goes into it a little more. The point is that only the colors that actually touch the ‘outline’ of the shape actually correspond to a specific wavelength of light. All of the other colors are blends of multiple wavelengths. So magenta isn’t special.
Given that color is just a fun trick your brain is playing on you to help you find food and avoid danger, is magenta real?
Yeah, absolutely. Or at least, it’s just as real as most of what we see. It’s what we see when we mix up blue and red. It would be disastrous from a survival standpoint to perceive that color as green, so we don’t. Because it’s not green. Light that’s green has a wavelength of around 510 nm. Stuff that’s magenta bounces back light that is both ~400 and ~700. Your brain knows the difference. So it fills in the gap for you, with the best guess it has, same as it does with your blind spot.
The perception of color exists within your brain, and your brain says you see magenta. So you see magenta.
So I googled Stygian Blue and…
Yall.
FORBIDDEN.
HOW TO SEE THE FORBIDDEN COLOURS
Softly: what the fuck
Many adults are put off when youngsters pose scientific questions. Children ask why the sun is yellow, or what a dream is, or how deep you can dig a hole, or when is the world’s birthday, or why we have toes. Too many teachers and parents answer with irritation or ridicule, or quickly move on to something else. Why adults should pretend to omniscience before a five-year-old, I can’t for the life of me understand. What’s wrong with admitting that you don’t know? Children soon recognize that somehow this kind of question annoys many adults. A few more experiences like this, and another child has been lost to science. There are many better responses. If we have an idea of the answer, we could try to explain. If we don’t, we could go to the encyclopedia or the library. Or we might say to the child: “I don’t know the answer. Maybe no one knows. Maybe when you grow up, you’ll be the first to find out.
Carl Sagan (via nasa-official)
❤️ you all, thanks for everything
Our irrefutable improvement in the last two hundred years. For data source, interactive graphics and details in the data processing see below:
Max Roser (2016) – ‘A history of global living conditions in 5 charts’. Published online at OurWorldInData.org.
High-res
She is oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. The same elements that are inside the rest of us, but I can’t help thinking she’s more than that and she’s got other elements going on that no one’s ever heard of, ones that make her stand apart from everybody else.
Jennifer Niven, All the Bright Places (via thelovejournals)
Jupiter with its moons and the Moon.
This could change everything.
Back in 2011, three astronomers were awarded the Nobel Prize in Physics for their discovery that the Universe wasn’t just expanding - it was expanding at an accelerating rate.
The discovery led to the widespread acceptance of the idea that our Universe is dominated by a mysterious force called dark energy, and altered the standard model of cosmology forever. But now physicists say this discovery might have been false, and they have a much larger dataset to back them up.
Continue Reading.
Okay, this title is misleading. No one says the expansion *isn't* accelerating, just that the discovery isn't particularly statistically significant
Quantum Mechanics in a nutshell-5: SWE in 3 dimensions
Experimental physics (aka fun with circuits).
if this gets 100,000 notes then i, the worlds greatest space agency will personally shoot donald trump into the sun
200,000 notes to also shoot the republican party leaders who don’t want to fund science into the sun
Have you ever heard of a Perpetual Motion Machine? More to the point, have you ever heard of why Perpetual Motion Machines are impossible? One of the reasons is because of the first law of thermodynamics! In this episode of Crash Course Physics, Shini talks to us about Thermodynamics and Entropy. Also, we learn about Isovolumetric, Isobaric, Isothermal, and Adiabatic processes. It’ll all make sense in a minute!
Get your own Crash Course Physics mug from DFTBA: http://store.dftba.com/products/crashcourse-physics-mug
The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV
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Keep reading
On “talent”: A few words for young people in science.
Having seen the discourse going on over at @nasa-official, I decided to finally get around to writing up my thoughts on young people wishing to get into science, but feeling that they are not talented enough.
In short, you can learn and be interested and passionate. You can most definitely be successful.
Anyway, you can read the full thing here on my blog.
If there’s anyone who wants to talk about their work or their goals, or simply wants some reassurance that they are more than capable, feel free to drop me an ask or a message. I’ll answer as soon as I can.
jenniferdoesthings.blogspot.com
Pluto is a dwarf planet, and thats okay
I love Pluto as much as anyone, and its *okay* that she’s a dwarf planet. Pluto has other cute friends out in her part of the woods
She just isn’t in the same plane of orbit as the other planets. Look at that orbit, its cray:
We can accept Pluto as she is, we don’t need to push her into a mold. Insisting that Pluto is a planet isn’t accepting her as her true self. She is a small, wild, free little dwarf planet and I love her
Illustration in a chapter on surface waves. Hydrodynamics. 1895.