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#colorful

manuel-jf@zotum.net
Manuel JF

Albireo (Beta Cygni) - Gold and Blue Double Star

Gorgeous and awe-inspiring!

Image/photoSylvia J wrote the following post Thu, 18 Nov 2021 06:27:09 +0200

Image/photo

Albireo (Beta Cygni) - Gold and Blue Double Star

Here’s one of the most #colorful – and most #beloved – #double-stars in the #sky. The eye sees it as just one star, called #Albireo. #TomWildoner captured this #image of Albireo with a #camera attached to a 12-inch #telescope.

#albireo #beta #cygni #gold #blue #double #star #photo #photography #astrophotography

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petapixel@xn--y9azesw6bu.xn--y9a3aq
petapixel (unofficial)

Watch a Scorpion and Its Young Glow Different Colors Under UV Light

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Did you know that Scorpions glow when you put them under an ultraviolet light? Ecological artist The Butterfly Babe (Sarah Folts) has shared a video showing a mother scorpion with her young gathered on her back and glowing a bright blue and purple under ultraviolet light.

As spotted by Laughing Squid, this fluorescent feature is due to specific proteins in scorpion exoskeletons, although the reason for its evolutionary usage is not entirely clear.

What is clear is that subjecting the large arachnids to ultraviolet light makes for some stunning photo and video opportunities, as different species of scorpions glow different colors. As shown in the video above, even differently aged scorpions of the same species fluoresce different colors.

The glow is caused by chemicals in its outer shell (cuticle / Hyaline layer) absorbing and then re-emitting the light at a lower wavelength, which creates the soft blue-green color. This hyaline layer is incredibly strong and stands up to time incredibly well: scientists have found that even fossilized scorpions can glow when a UV light source is placed on them.

It has even been shown that when scientists preserve scorpion samples in liquid-filled jars, the hyaline layer can make the liquid glow. An interesting thing observed by researchers is the creatures don't glow immediately after molting. Instead, the cuticles have to completely harden before they start to shine blue/green.

"We don't really know exactly why they do it -- it could just be an accident, a freak of nature, that all scorpions fluoresce," Owen Seeman, the collection manager for arachnids at the Queensland Museum, said in an interview with ABC in 2017.

In fact, it is still unknown if the glowing material comes from a chemical reaction in the hardening process or if the scorpions actually secrete the chemicals that create the glowing reaction.

Some theorize that it could help scorpions find each other while others think it is just a fluke of evolution and has no purpose at all. Another theory is that scorpions use the glow to see at night, as their eyes are more sensitive to the blue-green colors. However, there is very little UV light at night which makes this explanation unlikely. Another theory is the fluorescence makes their bodies more sensitive to light, which in turn makes it easier for them to find a shade-covered hiding spot. Because scorpions avoid sunlight in general and UV light in particular, Carl Kloock, an arachnologist at California State University, postulates that the glow actually helps them determine if they are safe to come out or if they need to stay hidden based on how much UV light shines on them.

Even though the reason for the glow remains a mystery to scientists, it can definitely make things easier for researchers while out in the field since they can easily spot scorpions at night by simply using a UV flashlight.

#educational #arachnids #colorful #colors #cool #creepy #nature #scorpion #ultraviolet #uv #wildlife

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earthbound@diasp.org
Alex Hall

Fire and Water (virtual oriental brush) in 9 color variants

Folk art-style decorative doodle done with virtual oriental brush #ZenBrush, composited and with color fills and variations of color fills done in photoshop. I thought that #Photoshop saved in the file all the snapshots I made in the history of so many different L*a*b hue/saturation/lightness adjustment variation layers toggled off and on. Nope. So those master settings are gone, but :shrug: I have the rasters at high resolution. Also here: a crossfade of many colors between variations.

#brown #bw #colorful #decorative #doodle #folk-art #indigo #khaki #mywork #oriental-brush #peach #red-orange #rose #variations #zenbrush

Originally posted at: https://earthbound.io/blog/fire-and-water-virtual-oriental-brush-in-9-color-variants/

earthbound@diasp.org
Alex Hall

2021-04-12 Automatism Figures

Painted with random intent in #ZenBrush, it turned out like rock or folk art. Virtual oil and palette knife backdrop in #CorelPainter, blended into #FilterForge messy paint and batik. Composited and adjusted in Photoshop. NFT at https://www.hicetnunc.xyz/objkt/98563

#Automatism #ZenBrush #OrientalBrush #Ink #CorelPainter #colorful #cyan #blue #green #yellow #expressionist #figure #batik

Originally posted at: https://earthbound.io/blog/2021-04-12-automatism-figures/

earthbound@diasp.org
Alex Hall

Rainbow Height Map Noise (Animated)

This is my contribution to the OBJKT4OBKT2 free art swap (at the Hic et Nunc crypto art NFT market). Since I arrived late, I’ll keep it priced free an extra day.

Rainbow Height Map Noise (Animated) (Still)

Available at: https://www.hicetnunc.xyz/objkt/48189

Description: Take a 3D plane and subdivide it to small squares. Apply animated noise to it on the Z axis. Take a gradient of maximum chroma and medium lightness colors, similar to a rainbow, and map it to the elevation view of the noisy plane. Then render the animation, and you get something like this. This could be compared to a geographic elevation map, but with color gradients between lines. It could also be compared to a representation of earth layer evolution.

You need a little bit of Tezos–a newfangled eco-friendly cryptocurrency–to cover the tiny transaction fee to collect free art as part of this art swap. You can get Tezos via the Guarda online wallet and other places, and I recommend the Kukai or Temple web wallets. (If you create your wallet in Guarda, export the private key and import it to the web wallets to access it.)

#objkt4objkt #3D #rainbow #colorful #gradient #terrain #map #geography #earth #mountain #generative

Originally posted at: https://earthbound.io/blog/rainbow-height-map-noise-animated/

asahel@libranet.de
Asahel

The Merry Cemetery of Săpânța

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Image/photo

<<When someone dies, their memory generally enters a kind of idealized state in the minds of those who loved them. Their flaws are forgiven and forgotten, and the way in which they passed (especially if it was unpleasant) often goes unspoken. Only the sweet stories about the person are retold. On their tombstone generalized niceties are written, often reduced to as little as “Rest in Peace.”

Not so in the town of Săpânţa, Romania, where at the Cimitirul Vesel or “Merry Cemetery,” over 600 wooden crosses bear the life stories, dirty details, and final moments of the bodies they mark. Displayed in bright, cheery pictures and annotated with limericks are the stories of almost everyone who has died of the town of Săpânţa.>>

#fun #death #dark-humor #Sapanta #cemetery #colorful #culture #Romania #Europe
The Merry Cemetery

Startpage - Private Search Engine. No Tracking. No Search History.

Search and browse the internet without being tracked or targeted. Startpage is the world's most private search engine. Use Startpage to protect your personal data.

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