426
The armadillo girdled lizard is a species of lizard in the family Cordylidae and its size can range from 7.5 to 9 cm (3.0 to 3.5 in) [read more: buff.ly/2DISYHC] [📷 buff.ly/3C481hg]
427
San Francisco, Market Street, April 14, 1906: four days before the M7.9 earthquake and fire.
[full video, NASS + process of restoration, upscaling, colorization: buff.ly/3pmvUc5]
428
Rollor is a cardboard packaging, 100% recyclable and made from a renewable resource. It also has a peculiar geometry in its folding process based on the hexagon and the spiral rollor.com
429
Called the pioneer of the Perceptual Art movement, artist and sculptor Michael Murphy works with anamorphosis. This is one of his most famous works, "The Immigrant"
perceptualart.com
430
Petr Spatina plays glasses. When he was young, he learned to play the accordion and the piano before embarking on learning a quite unusual musical instrument, “the glass harp”
[full video: buff.ly/3gu2sji]
[read more: buff.ly/3SsriNI]
431
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
432
The Mandelbulb is a 3-dimensional fractal: since a canonical 3-dimensional Mandelbrot set does not exist, it is possible to construct Mandelbrot sets in 4 dimensions using quaternions & bicomplex numbers
[read more: buff.ly/2KyGDuj]
433
Photographer Hannie Heere was photographing barn owls when she captured an unusual shot of a baby barn owl running across grass. Barn owlets start flapping their wings at seven weeks, making short flights around the nest at eight weeks
[📷 read more: buff.ly/3jAmoQ4]
434
At St. Louis Aquarium kids can design a fanciful sea creature, and then watch it come to life and swim with all the other sea creatures in a wall-sized digital aquarium
[source: buff.ly/2Z9dBdW]
[more about Sketch Aquarium: buff.ly/3jORn8O]
435
Vincent Bal is "shadowologist" and filmmaker: he uses the shadows of ordinary objects to complete his artwork
[Instagram account: buff.ly/2tsOhi4]
436
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]
437
Physics says energy would be lost due to inefficiency of the wheel, and it wouldn't make a complete loop with the bird on it. This cockatoo actually learned to move in a way that adds energy to the system, allowing it to make a complete loop [full video: buff.ly/2RYkPel]
438
LEGO machine for making domino runs. Each 'domino' is a stack of 5 1x3 LEGO bricks.
[📹 JK Brickworks: buff.ly/3hkt4ns]
439
There's a mountain in the Tianmen Mountain National Park, Zhangjiajie, China, with a marvelous natural arch with a stairway leading to it
[read more: bit.ly/2uHvsrh]
[source of the clip: buff.ly/3GmDEkP]
440
In Budapest there's a fountain that looks like a book: every few seconds a sheet of water blasts forth from the book's spine, arcing from one side to the other, creating the illusion that an invisible force is turning the pages of this marble tome [video: buff.ly/3gc348s]
441
This picture shows the effectiveness of camouflage. You have just to zoom in
[source, read more (PT): buff.ly/3TkHQZJ]
442
Masahiko Kimura is a widely recognized bonsai master, author of this remarkable Hinoki forest planting, sold at the 38th annual Nippon Bonsai Taikan Exhibition in 2018 for ¥1,800,000 (~US$15,800) [clip: buff.ly/3tQHmOn] [more about the author: buff.ly/2Z9SKXf]
443
In case you have some difficulties to see my tweets, I used a shadowban test tool and the result seems to be positive. While I'm not sure it's accurate, the diffusion of my tweets radically decreased after the 2 blocks I had for (not) violating 'non consensual nudity rules'
444
There are no plants in this picture.
pink: orchid mantis
brown: ghost mantis
dark green: hooded mantis
light green: leaf insect
grey: cat-eyed mantis
[source: buff.ly/3Q0XfLI]
445
Cheetahs don't roar, they meow.
The Felidae family is subdivided between "roaring cats" and "purring cats". The ability to roar is made possible by a special two-piece hyoid bone in the throat. Cheetahs only have a one-piece hyoid bone
[📹 meskal44: buff.ly/2VwrnGl]
446
A mature Giant Sequoia can use 2000 liters of water every day during the summer. That's why snowy winters are fundamental: with adequate water they can live over 3,000 years [read more: buff.ly/3j1JY87] [📽️by Michael Block: buff.ly/2WEwNA8]
447
In order to avoid expensive irrigation systems, this farmer lifted the spraying pipes using hydrogen balloons
[📹 buff.ly/3Q87O0z]
448
The Penrose triangle, is an impossible object, an optical illusion consisting of an object which can be depicted in a perspective drawing, but cannot exist in reality
[read more: buff.ly/2SBILXI]
[📹 Satsuki_8198, YT: buff.ly/3AK13w9 ]
449
Believe it or not, in the years 1950-1951, the A. C. Gilbert Company distributed the Gilbert U-238 Atomic Energy Lab, a toy kit allowing kids to make nuclear reactions at home using actual radioactive material. It was taken off the shelves in 1951
[more: bit.ly/2BTzsZW]
450
As it passed below the south pole of the Moon on Nov 7, 2014, JAXA's Kaguya spacecraft spied the Earth in the distance [source: bit.ly/2fUJLVl]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links