351
An explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and the size of these “sparks” is a direct measure of the quality of the egg and its ability to develop into an embryo. In other words, life begins with a flash of light ow.ly/qO4130nsBqc
352
This balancing cube can balance itself on any of its edges or corners and owes this ability to three rotating mechanisms which act like gyroscopes using the conservation of angular momentum.
[📹 ReM-RC: buff.ly/3BhCyG8]
353
This is a Gaboon Viper. Since its venom glands are enormous, each bite produces the second-largest quantity of venom of any venomous snake. The clip shows its rectilinear locomotion mode
[📹 Ghostpenguin's Reptile Resort: buff.ly/3fcba53]
354
This is not stained glass. It's a dragonfly's wing seen up close.
And on top of this beauty, dragonfly wings kill bacteria on contact by ripping apart their cell membranes with sharp nanopillars ow.ly/6KZN50wzlKD
[📷 kellyjeanrebar: kelly-j-rebar.pixpa.com]
355
How do emperor penguins stay warm enough to survive in -40°C or colder? This group of penguins demonstrates the dynamics of staying warm: an ever-shifting positions within a massive huddle ensures that no penguin is on the outside of the mass for too long buff.ly/32ldAmC
356
The Phare du Four, in Brittany, France, was built in 1869. It's automated and no longer guarded since 1993. It's 31 meter high and the waves that break on it can reach that same height
[📹 Mathieu Rivrin: buff.ly/3VaCnph]
357
The cecropia moth is North America's largest native moth. As an adult, it doesn’t have a functioning mouth, since its only purpose is to mate. They survive ~2 weeks [read more: buff.ly/2YCaFWF-] [clip by mackattack_zoology: buff.ly/3E6UQJR-]
358
Japanese startup AERWINS has developed the world's first flying bike. It is already on sale in Japan and a smaller version will be available in the US in 2023 for $777,000 (€775,400) [read more: buff.ly/3Lu2Jhx]
359
The Stoos Bahn is the steepest funicular railway in the world and is paraded as a masterpiece of Swiss engineering: it hauls passengers from the valley floor up a near-vertical 110% gradient [full video by National Geographic: buff.ly/3kwCcnA]
360
Photographer Axel Bocker took a glorious damselfly close-up in Germany and earned a spot as a finalist in the 2021 Comedy Wildlife Photography Awards
[source: buff.ly/3kYtApd]
361
Caracal's ears each have more than 20 muscles that swivel around to detect sounds of their prey. The tufts may enhance sound going into their ears or be used to communicate with other caracals [read more: buff.ly/3pi4O7l] [clip by wildcatcentre: buff.ly/3pjuDny]
362
This keepers worked at one of the most dangerous lighthouses in the world, Le Kéréon, located off the coast of Brittany. It was fully automated in 2004, so no one commutes to it anymore, but this is how they changed shift
[videos: buff.ly/3StSJIi]
363
Based on the Schröder Staircase and on the work by
Kokichi Sugihara, engineering professor at Meiji University, this animation provides a brilliant cartoon version of the Best Illusion 2020
[learn more: buff.ly/3pmkW4p]
364
This popular video shows the «world's most battered great white shark»: a specimen filmed in southern Australia in 2021, showing dozens of scratches, scars and wounds on every part of its body
[Dean Spraakman: buff.ly/3sreQmW]
365
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
366
The lyrebird of the genus Menura can imitate the calls of at least 20 species of birds and more interestingly, other sounds it hears. David Attenborough shows one imitating a variety of unexpected sounds
[full video, BBC Earth: buff.ly/32Qrehn]
367
'Relativity' is a lithograph print by artist M. C. Escher, first printed in December 1953. It depicts a world in which the normal laws of gravity do not apply. This is an animated version of the famous artwork [source: buff.ly/3xkiJO2]
368
How Earth will look in 250 million years according to plate tectonics theory [video: buff.ly/2I3KQ7N-]
369
Filmed at 700fps, we notice the iris' fluids inertia cause the iris to wiggle after the eyeball has stopped moving
[📹 The Slow Mo Guys: buff.ly/2tAxKuZ]
370
Jeffreys Bay in South Africa is famous for abundant seashells: the variety of colors, sizes and shapes, makes of it one of the most famous places for seashells collection [source, read more: buff.ly/2HgMmXZ]
371
𝗠𝘆𝘁𝗵: Lightning never strikes in one place twice.
𝗙𝗮𝗰𝘁: lightning can, and often does, strike the same place repeatedly—especially if it’s a tall and isolated object, like a tree
[source, NOAA: buff.ly/3xIkbHM]
[📹 buff.ly/3ezJLKg]
372
This is how a Fibonacci spiral is built buff.ly/2ozEkeS [source of the gif: buff.ly/3mCJZBI]
373
Jason Sims is a visual artist working in the realm of perceptual art. Primarily using mirror, reflective glass and lighting, he produces piece wall works, freestanding sculptures and large scale installations that create the illusion of space and form jasonsims.com.au
374
The story of Jadav Payeng, the man who planted one tree every day for 37 years on Majuli Island. He has now created a forest and wildlife reserve twice the size of Central Park in New York
[read more: buff.ly/3VpCY65]
375
Kyushu University released more than 1500 3D models of animals and plants using a photogrammetry technique, taking digital photos from multiple angles
[database: buff.ly/3OmYi9N]
[full paper: buff.ly/3UTBq40]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links