#polarized light

[fuckyeahfluiddynamics]

Ice Without Gravity

Astronaut Don Pettit is back in space, and that means lots of awesome microgravity experiments. Here, he grew thin wafers of ice in microgravity in a -95 degree Celsius freezer.  (Image credit: D. Pettit/NASA; via Ars Technica; submitted by J. Shoer) Read the full article

[zespaceblog]

Sag A* and it's Magnetic Properties

Sat at the centre of our Milky Way galaxy, lies a supermassive black hole over 4.5 times the mass of our sun. On 12 May 2022 Event Horizon having already taken the very first image of a supermassive black hole in M87, turned it's attempts to peer through 25,000 light years of dust and gas to grab the first image of our very own galactic monster, and since has continued it's work to produce the above image showing the magnetic lines coming from it.

The same work had been undertaken with M87 previously, and what Scientists have found is, essentially both show very similar structures.

Why is this important ? It's the first indication that the physics at work in these black holes are almost the same, despite the difference in size between them, with M87 being 5 billion times the mass of our sun.

But how can they know about this ?

It's all down to polarized light, the magnetic fields change the way the light reaches us, and so, we can map this and create these detailed images of how the fields flow within the light.

The light itself is not directly from the black hole, that's at the centre, but it's an accretion disk of material that flows around it, and is distorted by gravity to look as above.

[dinchenix]

it's the end of the year and you're walking through fresh snow under the Northern Lights ❄

get the high-res mobile wallpaper in my Winter Pack here

[biology-geology-beaches-india]

TSRNOSS, p 724.

[whats-in-a-sentence]

The ability of molecules to rotate a plane of polarised light can be observed with the use of a polarimeter in the following way (see figure 17.25).

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[magicmetalbird]

comic I made for the @polarlightszine this year

please check it out!

[highlyentropicmind]

Summoning the nerd council:

My fellow nerds, I seek your advice. In the next episode I talk about the math of spin, and I'm struggling with explanations and metaphors and making animations… But then I remembered that light polarizers exist. I would use some polarizers to make a demonstration of successive Stern-Gerlach experiments and superpositions… But I worry that it will be confusing, after all, we are talking about electrons, not light. I could explain that light also has spin follows the same math, but I haven't given the audience the experimental evidence to believe that, and doing that would take the video in a different direction…. Aaaaargh!

What do you think nerd council? Would the demonstrations with polarized light do more harm than good?

[illustratus]

Aurora Borealis by Frederic Edwin Church

[vintage-polar]

HMS ‘Erebus’ and ‘Terror’ in the Antarctic by John Wilson Carmichael, painted 1847

[marysmirages]

Polar Night (2024)

[ada-armand]

linktr.ee/ada_armand

[polarity-disturbed]

Ok no, we have to talk about the lighting design this season. Like I need to physically get this out of my body before I implode.

Because it’s so deliberate. It's obnoxiously deliberate. In the best, most beautiful, emotionally manipulative way.

So. Let’s talk about Belinda’s bedroom scene.

We open on Belinda’s bedroom, and the first thing you notice is that it’s drenched—absolutely soaked—in a cool teal-green wash. Not a trace of warmth in the room’s ambient light (aside from the salt lamp but I'll get to it).

Teal is a weirdly loaded color. People always slap it on when they want “serenity” or “calm,” sure, but there’s something haunting about the way it’s used here. It doesn’t feel like peace—it feels like the kind of stillness that happens after something ends. Like the quiet after the noise. That post-shift haze where your body’s in bed but your brain hasn’t followed yet.

What this tells us about Belinda? She’s stuck. The teal isn’t soothing her—it’s holding her in place. This isn’t a woman “relaxing” after work. This is a woman numbed by routine. She’s lying on top of the covers in a basic t-shirt, sweatpants, and socks—clothes that aren’t chosen, just defaulted to. The bed isn’t made. The room isn’t messy, but it isn’t cared for either. It's just… there. Like her.

Everything feels low-energy, lived-in without being truly inhabited. There’s a faint sense of order, but it doesn’t feel owned. There’s no vitality in the space. Like she’s present, but not alive. Teal here isn’t calm—it’s domestic sedation. It’s the color of pause. Of liminality.

Then there's that salt lamp. This soft, orange-yellow glow tucked in the corner of the frame. Warm, comforting, alive—completely opposite the teal-blue void it’s fighting against. It’s the only light source in the room that feels personal. Human.

And it’s not just that it’s a warm color. Color emotion theory tells us that orange and amber tones evoke feelings of warmth, optimism, and emotional openness. They're often used to simulate firelight, tapping into a primal sense of security—think hearth, sunset, candle. These hues are associated with creativity and personal connection. In a sea of teal, which promotes detachment, this little pocket of orange is like a flare of identity. A soul-spark.

Where teal sedates, amber invites. It’s the color of possibility, of life that hasn’t been extinguished yet. It's why the lamp doesn't light the room—it gives it a pulse.

Now here’s the kicker: the salt lamp is right under the star placard. The one with her name on it. The one that kickstarts the entire plot because a whole alien race thinks it makes her their queen.

The lamp’s glow reads like a tiny heartbeat in an otherwise frozen space. Symbolically, it’s the spark of self. That little ember of hope, joy, personality, belief—whatever you want to call it—that hasn’t been drowned out by the monotony of her life yet.

And the fact that it's under the placard? It's literally illuminating the part of her that the universe is about to claim.

Next we cut to a close-up of Belinda in bed. The composition here is brilliant.

Her pillow and the surrounding sheets are washed in the same cool teal light we saw earlier—but her? She's glowing in the orange warmth of the salt lamp.

This isn’t just pretty lighting—it’s duality. It's saying, “Here’s who she is now” (the teal), “and here’s what’s still inside her” (the glow). There’s a literal split happening—like she’s caught in a transition she doesn’t realize is coming.

This is the in-between. Her liminal moment. She’s not where she was, and she’s not yet where she’s going. But the camera lingers like it knows. Like it’s waiting for the change to start.

Then—boom. The lighting shifts. We get this violently bright, harsh yellow light flooding in through the window. And it doesn’t just pour in—it slices in. Through the blinds. In bars.

Let me say that again: bars.

It’s casting shadows across her body like a prison cell. That’s not an accident. It’s signaling that something is coming for her, and it’s not asking permission. It’s claiming her.

Yellow is a deceptive color in emotional theory. People think of it as cheerful—sunlight, sunflowers, warmth, joy, energy. But in design, especially in lighting? Yellow walks a tightrope. It can tilt into chaos fast. Especially when it’s this bright. This sudden. This aggressive.

See, yellow stimulates. It grabs your attention. It speeds up the heart. In advertising, it's used to spark urgency, even irritation (think hazard lights or warning signs). It’s a color that demands you look—and keep looking. You can’t relax in yellow. You can’t sleep in yellow. You react to yellow.

So when this high-saturation yellow floods Belinda’s room, it’s not joy. It’s not hope. It’s alarm. It’s a psychological jolt. A visual shove. It's not warmth—it's pressure.

Yellow in this scene is not an invitation to a new beginning—it’s an intrusion of expectation. A sudden spotlight. A cosmic glare.

And because it’s coming from outside the room, it’s not something she’s chosen. It’s not internal. It’s a force of narrative crashing through her private life. A story she didn’t ask to be in, demanding her attention. That yellow isn’t her destiny—it’s the noise of everyone else's expectations about who she’s going to become.

Now add the shadows of the blinds—those harsh horizontal slats—and you get a visual contradiction: a color that screams freedom, cast like a cage.

This is where it gets interesting. Because yellow is also associated with identity. Think ego, confidence, clarity of purpose. But when it’s forced, when it’s too loud, too fast, too bright—it becomes performance. The expectation to be seen. To shine. To embody something.

And that’s what’s happening here. The light doesn’t just want to see her—it wants her to become something. Bigger. Brighter. More.

This yellow doesn’t light her path. It exposes her.

She’s no longer safe in teal limbo. No longer comforted by the amber pulse of her salt lamp. She’s on display now. A body in a frame, spotlighted by a universe with no context. A woman seen through blinds—literally and metaphorically—by beings who will misread everything about her.

It’s the color of being watched. Of being presumed important. Of being chosen for reasons that have nothing to do with who you actually are.

And that’s the genius of it. That yellow glow isn't warmth—it’s the burn of recognition without understanding. It’s what happens when the world thinks you’re a lightbulb and plugs you into a searchlight.

Next: the silhouette.

We see Belinda standing in front of the window, her body blacked out by the light in front of her. The yellow glows around her like a solar flare through the clouds. It’s angelic. Messianic. Looks like the birth of a chosen one.

But that’s not what’s happening.

She’s not rising to the occasion. She’s staring out, stunned, trying to make sense of what just punched its way into her night. The light frames her like a heroine, but narratively, she’s still playing catch-up. That contrast—the visual myth vs. her actual confusion—is where the scene gets its emotional punch.

We’re watching her image transform before she does. The world sees her one way. The camera frames her that way. But she hasn’t caught up to that version of herself yet.

And then: the blinds.

Belinda slowly peels two slats open. A single bar of that same aggressive yellow light slices across her face and eyes. It’s dramatic. Cinematic. Looks like a revelation moment.

But it’s not a choice.

This isn’t Belinda stepping into anything. She’s not crossing a threshold. She’s just cracking the blinds because something is already happening to her—and she doesn’t understand it yet.

The light doesn’t represent clarity or destiny. It’s not a warm invitation. It’s an impact. A collision. A blunt force of something larger than her life forcing its way into her space. The yellow glow across her eyes doesn’t illuminate—it disrupts.

And that’s the real tension: she’s about to feel chosen. About to be miscast as important. But right now? She’s just tired. Just a woman in a basic tee and sweats, lying on top of the covers, poking through the blinds because something weird is happening to her, not for her. She’s not looking for meaning. She’s bracing for answers she didn’t ask to get.

That narrow beam of light slicing into the room isolates her. It spotlights her against her will. The world beyond those blinds has noticed her, and that attention is about to upend everything.

It’s the start of a misunderstanding. The beginning of being seen wrong. Of being dragged into something monumental because of one stupid star certificate and a moment she didn’t choose.

The light doesn’t welcome her. It claims her.

And the brilliance of this scene is how it tells us all of that—who Belinda is, what she’s lacking, and what’s coming—without a single word. The color palette sets her emotional baseline; the lighting builds the lie. It misleads us just enough that we feel the shift with her.

[polarlightszine]

❄️ POLAR LIGHTS 3 Now Live!

Polar Lights 3: Midnight is a digital charity anthology featuring original art and writing from 56 creators in a collection of 52 illustrations, 5 poems, 5 short stories, and more.

All proceeds will benefit the Antarctic and Southern Ocean Coalition, a global coalition of environmental NGOs working for the protection of species and marine ecosystems in Antarctica and the surrounding Southern Ocean.

Grab a digital copy of the zine for as little as $2! 🩵

Shares greatly appreciated.

[ecoharbor]

📍Lofoten, Norway 🇳🇴

[gentlemensarts]

[cleverreports]

We report: we constantly underestimate the fabric of our universe, even as we are aware that it is a much larger, much more colourful tapestry than we could ever conceive. For every little thing that has been understood and explained, there are millions more that escape meaning.