1576
This clip shared by the Sister Bay/Liberty Grove Fire Department in May 2020 clearly shows the value of sleeping with your doors closed [source: buff.ly/3yM7Qn2] #FireSafety
1577
This couple of sea urchins was discovered by a research vessel near New Caledonia at a depth of 300 m and photographed by Steve Jurvetson. They show us how fractals are everywhere, in the geometry of nature
[read more: buff.ly/2rw0h1s]
[source: buff.ly/2rw0e5M]
1578
Nebula Ellipse by Ivan Black is a kinetic chandelier in polished aluminium with 240 LEDs
[source: buff.ly/3yELnYW]
[author's site: kinetrika.com]
1579
This is the oldest surviving aerial photograph, taken 43 years before the invention of the airplane, 162 years ago #Today bit.ly/1EaL7fl
1580
Ambiguous grid by Kokichi Sugihara of Meiji University. A mathematically calculated combination of perspective and the physics of reflection produce this striking illusion that works in many configurations
[source: buff.ly/3Tlnz5h]
[learn more: buff.ly/2GYweb5]
1581
There's a forest in Poland where all the trees have this weird shape and nobody is sure about the reason [read more, hypotheses: bit.ly/2rbshcI]
1582
Echidnas, instead of having teats like other mammals, have milk patches which excrete milk for their young to lap up. This is why wildlife hospital nurses have to feed a 'puggle' from the palm of their hands, so it can lap milk as it would do in the wild: buff.ly/32U3yJA
1583
Nicknamed the Cheshire Cat galaxy group, the group's two large elliptical galaxies are suggestively framed by arcs. The arcs are optical images of distant background galaxies lensed by the foreground group's total distribution of gravitational mass buff.ly/2qMiyef
1584
Different organisms have different numbers of chromosomes: humans have 46, donkeys 62, goldfish 104. But there's a microorganism called Oxytricha trifallax, that has 16,000 chromosomes in its genome [read more: buff.ly/2IDqYMm]
1585
Warthogs living in Uganda have learned to rid themselves of annoying ticks by seeking out the grooming services of some accommodating neighbors: a group of mongooses looking for snacks
[full video, BBC: ow.ly/LdK250l2h4F]
1586
Artist Kohei Ohmori spends more than 200 hours on each project with a striking attention to details. Ohmori's hyperrealistic designs are drawn with ultra-thin lines and remarkably steady hand
Instagram: buff.ly/3CRv8va
YT: buff.ly/3RU81ED
1587
This is the first time you see a rocket launching with its booster landing (Iron Man style) in the middle of the ocean on a drone ship at sunset and in the same frame shot
[SpaceX Intelsat 33 & 34 mission: buff.ly/3SXnogK]
1588
This short clip shows how light behaves when beamed through several shaped lenses.
Try this online simulator by the University of Colorado: buff.ly/3p7h3mL]
[video: buff.ly/3CRIw2x]
1589
‘We’ve Never Seen Anything Like This Before’
In an absolute first, astronomers have observed a black hole burping up stellar remains 3 years after it shredded and consumed the star, without swallowing anything new in the meantiime [read more: buff.ly/3VkUrNo]
1590
The "Still Face" experiment was conducted at UMass Boston in 2009. A mother denies her baby attention: a short period exposure can lead to bad, but repairable socialization. But in prolonged situations can be irreversible [video: buff.ly/3Cu0NkV]
1591
Geckos "drink" from their eyes. In fact most geckos cannot blink, but they often lick their eyes to keep them clean and moist. They have a fixed lens within each iris that enlarges in darkness to let in more light [read more: buff.ly/2G8X6BY]
1592
Perhaps to prevent overheating, dik-diks have elongated snouts with bellows-like muscles through which blood is pumped. Airflow and subsequent evaporation cools this blood before it is recirculated to the body [read more: buff.ly/2PmdXd8]
1593
It's not easy to safely film a polar bear. This is how Gordon Buchanan came face to face with a huge wild polar bear quite keen to get to what smells like a tasty meal
[full video, BBC: buff.ly/3fPbWVR]
1594
Until recently, wind turbine blades were nearly impossible to recycle. Now, one company is shredding the blades so they can be used as fuel in cement making [video: buff.ly/3yEjos9]
1595
A great visualization of how a radial engine works in this Pratt & Whitney R-985 cut-away by Skip Stewart
[source: buff.ly/3g32XAr]
[read more: ow.ly/1VAv50kVlYA]
1596
The Rhei clock uses a magnetic liquid called ferrofluid to tell time. At each minute, the clock's magnetic field is programmed to change, moving the liquid in its display [source, read more: buff.ly/2TAmUhT]
1597
43 years ago #Today, Douglas Adams' The Hitchhikers Guide to the Galaxy was first published bit.ly/1TEAbkH
1598
Octopuses are anti-social towards other octopuses by nature, but when given MDMA they’re much more friendly and try to “hug” each other
[read more: buff.ly/2QM4wle]
[full paper: buff.ly/2DiDZcP]
1599
Debbie Parker captured the exact moment a lightning hit a tree in Moorefield, Hardy County, West Virginia on June 23, 2022 [source: buff.ly/3A6G47h]
1600
The World’s Smallest Snowman was fabricated from three 0.9 micron silica spheres and stands less than 3 microns tall [read more: buff.ly/2h4AHJB]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links