226
The Rayleigh scattering law tells us that the scattering of light is inversely proportional to λ⁴, which also tells us that the shorter wavelengths (like the blue light) are scattered more (1/λ⁴ is larger if λ is small) and this is why the sky is blue buff.ly/2KpHf8z
227
The 'flight' of the mobula ray is made to attract a mate: pure beauty at the origins of life [source, full video, BBC: buff.ly/2of5UlR]
228
Photographer Wu Yung-sen has been deep sea diving and photographing marine life for four years. On a recent blackwater dive—unable to see the bottom and surrounded by impenetrable space—he chanced upon a rare larval Wunderpus octopus, totally transparent buff.ly/3oytEMs
229
Simas Snežko built a mechanical model of a car out of wood. And it's not just some pistons moving up and down in a drilled-out block of wood—the model is a V8 with a working transmission, a differential and a clutch [read more: buff.ly/3sI66aE]
230
This is a detail of the right forearm of Michelangelo's Moses (c. 1513–1515). The blue circle highlights a small muscle called extensor digiti minimi, which only contracts when the little finger is lifted
[source, read more: buff.ly/3xsSG5L]
231
Photographer Axel Bocker took a glorious dragonfly close-up in Germany and earned a spot as a finalist in the 2021 Comedy Wildlife Photography Awards [source: buff.ly/3kYtApd]
232
General relativity for babies
[📹 and more, readplaysing: buff.ly/3ztlDAV]
[this book: buff.ly/3RTstGO]
233
The Arctic hare can run up to 60 kilometres per hour, but it's when it's sitting that we like it more bit.ly/1ODbJPQ
234
Visualisation of birds migrating across Europe, tracked by GPS by 422south.com
[read more: buff.ly/3w64dqx]
235
Artist BKArtchitect's artworks are often based on perspective and this clip shows how you can draw a city from above using a simple piece of string
[Author's account: buff.ly/3V08gRc]
236
If you put some soap or ink on a leaf, you obtain a ink propelled boat, using the Marangoni effect. The ink or the detergent has a lower surface tension than water and its flow provides thrust to push the boat forward
[more: buff.ly/2tnyzW6]
[📹 buff.ly/3yUhS5D]
237
The Golden Mechanical Horse is a is a kinetic sculpture by artist Adrian Landon, commissioned by and displayed at the Daxton Hotel, in Birmingham, Michigan
[read more: buff.ly/3SMBBgW]
238
If you think dragons are just imaginary creatures look at this draco lizard. While it's certainly smaller than you probably expect, it's nothing short of impressive
[source, read more: buff.ly/3BYfUo7]
239
That time a beekeeper made a beehive entirely out of LEGO bricks and 30,000 real-life bees moved in
[full story: buff.ly/3D1FGYV]
240
Body transfer illusion is the illusion of owning a part of a body other than one's own.
This is the famous rubber hand experiment and it tricks your brain.
[read more: buff.ly/3KLe6l1]
[📹 Adley and Story House Media: buff.ly/3cNcfPZ]
241
An accessory cloud can often be seen just above Mount Teide’s summit. Such cloud formations are always attention-getting, such as this lenticular cloud captured by Bartosz Wojczyński, staying in the same spot for hours [full video: buff.ly/35BSa98]
242
This famous image made by artist István Orosz features a scene from the classic science fantasy novel The Mysterious Island. When a mirrored cylinder is placed on the Moon, it reveals by anamorphosis a portrait of the novel’s writer, Jules Verne [source: buff.ly/319f9VP]
243
Cystisoma is a crustacean that lives between 600-1000 m deep in the ocean. Its body is totally transparent: only its eyes are pigmented. This one has a brooding pouch full of orange eggs
[read more: buff.ly/3cs0caB]
[📹 Alejandro Damian-Serrano]
244
A swan landing on water. An ability acquired in millions of years of evolution.
[read more: buff.ly/3YntZ7C]
245
How your food travels
[📹 Keith Siau: buff.ly/3Fp5Q8U]
[read more: buff.ly/3HfWGgi]
246
After months of chasing starlings, photographer James Crombie captured this remarkable shot of the flock as it swelled into an enormous bird-like murmuration [read more, author's site: inpho.ie]
247
This stunning slow-motion footage of the green dragontail butterfly was filmed by Kazuo Unno in northern Thailand. Lamproptera meges are a species of swallowtail butterfly that can be found throughout Asia [full video: buff.ly/2ThZAVZ]
248
Hurling hot water in freezing tempetatures has always its aesthetical reward
[📹 Douyin 抖音号 1530506662: buff.ly/3PgoC61]
249
The amazing view of NASA DART spacecraft impacting on the asteroid moonlet Dimorphos captured by the ATLAS telescope in South Africa
[read more: atlas.fallingstar.com/home.php, buff.ly/3Cd4X1J]
250
The fruits of Melocactus are pink and resemble the shape of pepper fruits. The fruits of this genus are edible, and in the wild they are frequently dispersed by lizards and birds
[read more: buff.ly/3cnCPPl]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links