451
You could climb out of a hole with a ladder or a rope—or you could call on your physics knowledge. Running in circle, for example, will introduce a rotational force, and therefore a larger normal and frictional force
[explanation: buff.ly/3BCgl6v]
452
Sheep need regular shearing, or else their coats can become so overgrown they’re unable to get around properly. This is what happens when one gets lost for 5-6 years and nobody takes care of shearing it
[full story: buff.ly/3Wgx7jS]
453
When a blue-tongued skink is threatened by a predator, it performs an amazing defensive bluff by turning to face the predator head-on, opening its vast mouth, and wagging it’s brightly colored tongue
[source: buff.ly/3Fza78L]
[📹 Dr Chris Jolly]
454
Modular LED wall panels often allow an easy, seamless front and back replacement of the tiles
[📹 leddisplayalex: buff.ly/3htQGpS]
455
Hitting and launching molten iron into the air with a shovel is a very dangerous activity and must not be tried anywhere, but (with the proper protection equipment) it can produce surprising beauty
[source, SUSHI RAMEN【Riku】: buff.ly/3KcE5zz]
456
Wat Samphran is a Buddhist temple in Amphoe Sam Phran, Nakhon Pathom province, around 40 km west of Bangkok. The temple is notable for its 17-story tall pink cylindrical building with a gigantic dragon sculpture curling around the entire height
[source: buff.ly/3YvbfDa]
457
In this picture from circa 1960, you can see Frank Rosenblatt ’50, Ph.D. ’56, working on the Mark I Perceptron machine – what he described as the first machine “capable of having an original idea”
[full story: ow.ly/vxOw50xvuUr]
458
A radius measuring gauge set avoids complicated calculations, accurately measuring either the inside or outside radius of a piece
[video: buff.ly/3uTp6FG]
459
Glass Plank Road in Tiantai Mountain, Zhejiang, China allows the close-up observation of a waterfall from from a glass-bottomed walkway.
[📹 Kuaishou Top-6182: buff.ly/3hsssfV]
460
Giant sequoia specimens are the most massive individual trees in the world. Record trees have been measured at 94.8 m tall & 9 m in diameter. Outdoor adventure photographer Quin Schrock captured the scale vs a human
[source: buff.ly/3GNmT3s]
461
Captured by Simon Buxton, this underwater video shows a blanket octopus unfolding and displaying a colorful web multiple times its original size
[full video: buff.ly/31UsssO]
462
Diamond Head is a volcanic tuff cone on the Hawaiian island of Oʻahu. It was created by the eruptions from the Koʻolau Volcano and is estimated to be about 400,000 to 500,000 years old.
[read more: buff.ly/2WxL537]
[📹 buff.ly/3hu7ZY1]
463
The Uffington White Horse is a highly stylised prehistoric hill figure, 110 m (360 ft) long, formed from deep trenches filled with crushed white chalk, located in the Oxfordshire county, UK. It is presumed to date to the late Bronze Age (1380-550 BCE) ow.ly/LWyB30oa8kX
464
Flowers spread with water in slow motion provide an instant visualization of surface tension
[📹 JollyToday: buff.ly/3W5eAae]
465
The Gaussian Integral is a beautiful integral for which the area between e⁻ˣ² and the x-axis from negative infinity to positive infinity perfectly equals the square root of π
[read more: ow.ly/5Ngy50xwG9m]
466
The tiny Cafe YND239-20 is located in an unassuming brick building in Mapu-gu in Seoul, South Korea. The entire shop is outfitted in black and white designs and you feel like you just walked into a comic book [read more: ow.ly/pmVY30o7bKK]
467
Women can make new eggs, but there's a chance your maternal grandmother carried a little part of you in her womb. Girls are born with most part of the eggs they'll ever produce: your grandmother may have carried your mother with the egg that grew into you: buff.ly/3gHdYEZ
468
These images combine photography & computer generated elements in an effort to visualise the output of the mining industry of South Africa. The CGI spheres represent scale models of the materials removed from the ground
[source, phmuseum.com: buff.ly/3Lo89dJ]
469
«I bet you ten bucks you can't get this olive into this glass without touching the olive»: how it's feasible using rotational forces [source: bit.ly/2qNS9f6]
470
The beautiful rocket ballet that is the “Korolev Cross”
[source, read more: buff.ly/32CiJIf]
471
The world largest A380-800 RC model Mega XXXL Thai Airways with turbines
[full video: buff.ly/3BHTxT1]
472
A cross-section of an elephant’s foot alongside a human foot x-ray, revealing a striking skeletal likeness
[source, credit, University of Queensland: buff.ly/2LXrkAb]
473
In case Mercator projections have ruined your perception of continents' scales, this is the true size of Africa
[source, read more: buff.ly/2ka1WGz]
[hi-res: buff.ly/34kE0uP]
474
Sweden has the largest scale model of the Solar System in the world, 950 km across
[read more: bit.ly/2bwAAVp]
475
How vaping by a freeway can reveal the secrets of fluid dynamics
[📹: buff.ly/3V1UwEn]
[aerodynamics of a truck: ow.ly/PtKo30mKvoa]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links