726
These photos captured by nature photographer Alan Murphy show just how camouflage works. A Canadian great gray owl sits perched atop a tree branch, seemingly melting into the background of spruce and pine trees [source: buff.ly/3DvwcmF] [author: alanmurphyphotography.com]
727
One evening, while walking along the riverbed of the Myakka River State Park in Sarasota, Florida, photographer Larry Lynch came across a group of alligators. This is the result of setting his flash on the lowest setting to give just a tiny bit of light lynchphotos.com
728
It’s the colouration that makes the painted bat (Kerivoula picta) remarkable. Its body is covered in downy orange fur, while its wings are striped in highly-contrasting black and orange; a strikingly beautiful combination [source, full video, read more: buff.ly/3FlsaNT]
729
This 20 second time-lapse by Cristian Aguirre captures 10 hours of Villarrica volcano activity in a remarkable transition of lights, clouds, lava and stars. Bonus: volcano's lights beaming into the night sky [source, IG account: buff.ly/3kDNs1x]
730
Among its other peculiarities (it's the third-tallest and second-heaviest living bird), the cassowary, during its breeding season, lays bright green or pale green-blue eggs [read more: buff.ly/2BrTwWV]
731
When permafrost melts in Siberia, it releases large amounts of methane which can blow holes like this one in the tundra [source, read more: buff.ly/2qkbhz7]
732
The story of how Marie Curie invented a mobile X-ray machine for usage on the front line during WWI and and trained 150 women to operate it [read more: ow.ly/1sKK30ngyLV]
733
Perceiving age, health, sex, and beauty in a face is matter of details you never considered [read more: bit.ly/2wpzioy]
734
Very effective anamorphic floor art
[📹 source: buff.ly/3wVcz65]
735
Wood planing is the art of shaving wood into very thin strips: a select group of experts in Japan compete to shave off the thinnest piece of wood possible. This video by xtol.ren shows how it's done
[source: buff.ly/3eoSUVJ]
736
This video is an interesting collection of fungi time-lapses showing their growth.
[source, SRodrigo777: buff.ly/3qb7D9j]
737
Flatworms have a peculiar characteristic: when sliced in pieces, each piece will grow into a complete flatworm, just like the original one
[source, read more: buff.ly/3wVFCX2]
738
The Equals sign was invented in 1557 by Welsh mathematician Robert Recorde. He only invented it to avoid the tedious repetition of the phrase "Is equals to". It was not immediately popular: the symbols || or æ/œ were widely used into the 1700s [read more: buff.ly/2ma2xMY]
739
Scotoplanes, alos known as sea pigs, live on deep ocean bottoms typically at depths of over 1,200–5,000 meters
[read more: buff.ly/3wWM3sT]
[📹: buff.ly/3RzzZFR]
740
A zombie bug.
While it's not alive, it's not dead either. A large number of mind controlling fungi leads insects to assume the strangest behaviors in order to spread their spores and infect more insects to survive.
[read more: buff.ly/3Azbt26]
[📹 Ryan Andrews]
741
The Sleeping Hermaphroditus is an ancient marble sculpture depicting Hermaphroditus life size sculpted in 1620. The most striking detail is that the mattress and the pillow, made by Italian artist Gian Lorenzo Bernini, are made of marble too [read more: buff.ly/2IycQAc]
742
We can see the shape of the invisible magnetic fields on the Sun because they guide the motion of the plasma – the loops and towers of material in the corona glow brightly in EUV images. This is a model that visualizes them [video, NASA: buff.ly/3DA5skA]
743
This is the stream table used at BYU's Department of Geological Sciences to model rivers and teach/research water dynamics and river conservation principles [full video by Cougar Cosmos: buff.ly/3DsRMYM] [Little River Research & Design: emriver.com]
744
Watch a spy robot cobra meeting the real meerkat mob and being quickly dispatched with a show of unified force [full video: buff.ly/2ltD5Sm]
745
European starlings are exceptional mimics, including human speech. Their ability at mimicry is so great that strangers have looked in vain for the human they think they have just heard speak buff.ly/37Mny47 Stella the starling is an example: buff.ly/2ATavSg
746
The story of William Walker, the diver who worked six hours a day from 1906 to 1912 in total darkness at depths up to 6 meters to put down 25,800 bags of concrete, 114,900 concrete blocks, and 900,000 bricks to save the Wincherster catherdal's foundation buff.ly/3rr05yq
747
A closed wing is a wing that effectively has two main planes which merge at their ends so that there are no conventional wing tips. This video by Anderson Rayner shows a test of annular wing [read more: buff.ly/3sUGAyj] [full video: buff.ly/3qo79dR]
748
The longest, published word in English is the term for the formula C₁₂₈₉H₂₀₅₁N₃₄₃O₃₇₅S₈, a protein that has 267 amino acids [read more: buff.ly/2H79ib0]
749
That time when a giant Moon balloon was blown away in China and found strolling along the streets [story: buff.ly/2qj2jlA]
750
A recent research found that a cup of tea made with plastic teabags may come with a dose of micro- and nano-sized plastics (the latter being less than 100 nanometers in size) shed from the bags. Health effects are currently unknown [read more: buff.ly/2lLK75g]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links