Mastodawn

MONSTER ENERGY全新 Ultra Violet 零糖零卡葡萄風味
https://www.am730.com.hk/市場資訊/1017791/monster-energy全新-ultra-violet-零糖零卡葡萄風味

We've learned so much about our home and still know so little about this amazing little ball of wonders upon which we live.

"Treetops Emit Ultraviolet Sparkles During Thunderstorms"

#link: https://www.smithsonianmag.com/smart-news/treetops-emit-ultraviolet-sparkles-during-thunderstorms-researchers-just-filmed-it-in-nature-for-the-first-time-180988275

#link: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119591

#link #smithsonian #magazine #Trees #Leaves #uv #ultraviolet #light #Thunderstorms #forests #sparkles #Research #Science #agu #AmericanGeophysicalUnion

Treetops Emit Ultraviolet Sparkles During Thunderstorms. Researchers Just Filmed It in Nature for the First Time

The weather events probably cause the air around leaves to produce weak electrical discharges

Smithsonian Magazine

13 Mar 10

Seeing the World Through Animal Eyes https://hackaday.com/2026/03/10/seeing-the-world-through-animal-eyes/
#Digitalcamerashacks #Science #Animalvision #Colorperception #Ultraviolet

Seeing The World Through Animal Eyes

If you think about it, you can’t be sure that what you see for the color red, for example, is what anyone else in the world actually sees. All you can be sure of is that we’ve all been …

Hackaday

TJ Mar 9

UV Onion.

I feel you won't be eating onion after getting sick of all these shots lol
Anyway, this is one humble trial to shoot the flower(s) in ultraviolet and combine it with a regular or "visible light" image. A technique that is usually dubbed as "Bee Vision" (but it's not scientifically proved that bees do really see in this manner but it's merely an imaginary approach). In simple terms, two images are shot; a regular one and one with UV-Pass filter, then the blue channel of the regular one is replaced with the UV shot. I've done this with sunflowers and oxeye flowers and the difference were clear between UV and visible light images, but here with the onion it seems not much difference to be seen. It is believed that such patterns that are visible under UV only are used by bees for guidance.
The shot was done outdoor so there is a shake for sure but I tried my best to overlap the two images. Because of using auto ISO, the ISO value between the two shots differs as well. The shot was made with 50mm, and the final image here had been cropped a great deal to focus on the flower only.

#onion #flower #bloom #nature #natural #UV #ultraviolet #spectrum #goodmorning

Mikko Tuomi Mar 4

Thunderstorms often illuminate the night sky with flashes of #lightning.

They also seem to make treetops glow and sparkle—although the phenomenon is pretty much invisible to the naked eye.

Now scientists have provided the first direct observations of the weak electrical discharges around #trees in nature.

These outbursts—called coronae—are typically too faint for human eyes to detect.

But since they also emit light at #ultraviolet wavelengths, scientists were able to use a special setup involving a UV camera to document them outside of a laboratory.

#nature #science
https://www.smithsonianmag.com/smart-news/treetops-emit-ultraviolet-sparkles-during-thunderstorms-researchers-just-filmed-it-in-nature-for-the-first-time-180988275/

Jay Feb 20

Tropical plant under UV light, Cambridge University Botanic Garden, Cambridge, UK
This was taken during a night walk in the garden. The only source of illumination was a high power ultraviolet torch.
#photography #plants #tropical #uv #ultraviolet #nofilter #biofluorescent