#light spectrum

[ohmysatan42]

Agatataghaghhhhh

[liminally-spaced]

[bbbugsnstuff]

[wayti-blog]

"The phytoplankton that populate oceans are known to play a key role in marine ecosystems and climate regulation. Like terrestrial plants, they store atmospheric CO₂, and produce half of our planet's oxygen via photosynthesis. However, the mechanisms that control their distribution remain poorly understood.

By studying the light perception process of diatoms, a group of phytoplankton, scientists from the CNRS and Sorbonne University discovered that these microalgae use light variation sensors which are codified in their genomes: phytochromes.

These photoreceptors enable them to detect changes in the light spectrum in the water column, thereby providing information regarding their vertical position within it. This function is especially important in turbulent aquatic environments subject to substantial water mixing—such as high latitude, temperate, and polar regions—in order to adjust their biological activity, in particular photosynthesis."

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[uwudonoodle]

Minute Earth including Hestu in this tree graph added a few minutes to my lifespan.

Video here. It was very interesting.

[sweetmeatdale]

[strikebystarlight]

Oblivion must be so sweet,

To walk without seeing,

And not miss what was never known.

But oh, how to go back

New colors unveil themselves

The familiar becomes new.

Suckling beauty from tragedy,

I savor the bitter-sweet

Stars shine behind my eyes,

And copper paints my palate.

Ultra-violet might be ultra violent,

But I'd miss the full spectrum.

[liminally-spaced]

[call-me-cherrry]

Science is so cool!

The long wavelengths of the light spectrum—red, yellow, and orange—can penetrate to approximately 15, 30, and 50 meters (49, 98, and 164 feet), respectively, while the short wavelengths of the light spectrum—violet, blue and green—can penetrate further, to the lower limits of the euphotic zone. Blue penetrates the deepest, which is why deep, clear ocean water and some tropical water appear to be blue most of the time. Moreover, clearer waters have fewer particles to affect the transmission of light, and scattering by the water itself controls color. Water in shallow coastal areas tends to contain a greater amount of particles that scatter or absorb light wavelengths differently, which is why sea water close to shore may appear more green or brown in color.

Follow @scienceisdope for more science and daily facts.

Video credit: Kendall Roberg

[epitome-the-burnkid-viii]

[whats-in-a-sentence]

(The dark lines in the Sun are unshifted because the Earth does not move toward the Sun or away from it, but at right angles to its position, and a right-angle motion produces no shift. Thus the lines in the solar spectrum can be used as a reference against which to compare other spectra.)*

* Because the Earth's orbit is not exactly circular, the Earth does approach the Sun slightly for half a year and then recedes from it the other half. The rate of approach or recession is something like 3 meters per second on the average – small enough to be ignored.

"The Stars in their Courses" - Isaac Asimov

[bli-o]

hey autistic people who get overwhelmed by large groups or noise or conversation or etc etc etc you’re not evil for wanting to leave a family gathering. just so you know.

[xpi-x-elx]

I would like to add that if you have house plants, they do best under 4500K-6500K! I use 4500K because I prefer that level of white/warmth in my house and my plants do just fine ❤️

There are so many different shades of white light bulbs, I am so overwhelmed walking down the light bulb aisle, and then I'm never happy with the one I choose, no matter which one I choose, I get it home and I put it in and I'm like, ugh, I don't like THAT white

[covenawhite66]

The NIRISS has gone offline

The NIRISS has gone offline but the rest of the space craft is functioning properly.

Near Infrared Imager and Slitless Spectrograph NIRISS

NIRISS used to investigate exoplanet atmospheres, to detect first light, aka the Era of Recombination, and to detect exoplanets. It can also capture wide-field instruments to study populations of objects and has multiple filters that increase its versatility.

[yellow-yarrow]

presenting my pale visualization for peer review

[poorly-drawn-mdzs]

Who is this sassy lost child?

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