Massimo(@Rainmaker1973)さんの人気ツイート(リツイート順)

1551
The air moving up a chimney works under the same physical principles as water flowing in a pipe. But air pressure is negative and chimneys are negative pressure systems: the hotter the fire, the biggest the draft [read more: buff.ly/2ojR1zT] [📹 buff.ly/3eoczWg]
1552
Artist Shinrashinge makes 2D characters come to life with the simplest of materials. The curved surface on the cups allows Shinrashinge to make art that looks like a moving animation [read more: buff.ly/3EurYLo-] [Instagram: buff.ly/3JllQc0]
1553
One of the most curious properties of dragonflies is probably that their wings kill bacteria on contact. They do it by ripping apart the bacteria's cell membranes with sharp nanopillars as they move across the surface of the wing [read more: ow.ly/6KZN50wzlKD]
1554
This is what you see when you fly through the Sun’s upper atmosphere. The "view from the window" of the Parker Solar Probe, which was the first to complete the sampling of particles and magnetic fields there [read more: buff.ly/3ebMUQx]
1555
At Mount Fanjing, Guizhou province, China, two temples sit atop a lonely spire called the Red Clouds Golden Summit, rising more than 100 meters above the surrounding mountaintop [read more: buff.ly/2UxyJu7] [source 📹: buff.ly/3DSnLms]
1556
These Morphing Fractal™ engraving vise jaws made by Steve Lindsay can virtually morph to grip any object [: buff.ly/3ozB6K0] [read more: fractalvise.com]
1557
These tulips are giving new meaning to the term ‘flower beds’ – as tiny harvest mice curl up inside them, since they sleep inside, as these photos by Miles Herbert show [author's site: captivelight.co.uk]
1558
Endemic to the Namib desert, Welwitschia mirabilis is a plant that can live up to 1,000 years. Some individuals may be more than 2,000 years old. It grows only two foliage leaves reaching lengths up to 4 m [read more: buff.ly/3Iu4mt1] [photos: buff.ly/33Eg1GO]
1559
Sphalerite ((Zn, Fe)S) is a mineral that is the chief ore of zinc: the colors spectrum of its gems is awesome [read more: bit.ly/2wUGKJo] [📹: buff.ly/3GlJmE9]
1560
Artist Yoann Burgeois captures the moment of Immortality in what it's his mesmerizing marriage of Arts and Science. This is his perfomance named "Houvari: Turning Force of Relations" [read more: buff.ly/3iqlx6Y]
1561
On December 10, 1985, the Senate Environment and Public Works Subcommittee held a hearing to discuss how the greenhouse effect might change the global climate system and possible solutions This is Carl Sagan testifying [full 📹: buff.ly/3Mi40si]
1562
Easter Island's moai are possibly the world’s most famous sculptures, but their household name is actually a misnomer, as each figure also has a hidden body [read more: buff.ly/2HODwiB]
1563
This neuroscience medical animation explains the effects of a concussion on brain cells [full video, HD, Syntropy Studio: buff.ly/3Tz9lij]
1564
Aliens? Unknown mysterious sea creatures? They're just upside-down dried out Aloe Ferox (or Cape Aloe) leaves which the sea washed ashore, captured by photographer Jan Vorster on the Stilbaai shore, South Africa [read more: buff.ly/3FHD5EK]
1565
In this 1985 documentary, James Burke talks about uniting people in an electronic community erasing physical distances. An accurate prediction of Internet and how politics will change in the digital age [📹 «Worlds without end»: buff.ly/3LXiE8o]
1566
The Mir mine is an open pit diamond mine located in Mirny, Russia. The mine is 525 m deep (4th in the world) and has a diameter of 1,200 m. This picture's perspective makes the surrounding town look miniature buff.ly/2saS5UQ [photo: ow.ly/tIcL30nKGHt]
1567
In 1881, the Harvard Observatory director was frustrated with his staff, and would say "My Scottish maid could do better!" He hired his Scottish maid. Williamina Fleming classified tens of thousands of stars, discovered white dwarfs & the Horsehead nebula buff.ly/2mFX8vw
1568
Archimedes, mathematicians, and 7th grade geometry teachers have known the truth about pizza sizes for years: a large pizza is almost always a better deal than two mediums and a 18" pizza has more pizza than two 12" pizzas [source, read more: ow.ly/FGgy30nt5Rp]
1569
In 2009, Bill Gates acquired the rights to make a series of lectures held by Richard Feynman available to the public. Gates saw the lectures when he was younger so he created Project Tuva to share 1964's The Character of Physical Law. Still available now: buff.ly/3qd2RcB
1570
This is the longest (theoretical) single uninterrupted train journey possible on Earth. Starting from the Portuguese coast, one can travel by train not just into China but all the way to southern Vietnam, a distance of 17,000 km (10,566 mi) [read HERE: ow.ly/Nmnx50xqY28]
1571
Dubbed as the highway above the clouds, the Tianlongshan Highway is located in Shanxi Province, Northern China. Its elevation gain is 350 m. It’s equivalent to a 116 floor building with a 3-meter story height [📹and read more: buff.ly/3Holtis]
1572
Most female cheetahs spend their lives without raising a single cub to maturity. The species is dependent on "supermoms", particularly adept at raising cubs. One supermom, Eleanor, has mothered at least 10% of all adult cheetahs in the southern Serengeti ow.ly/lVQp30nxEvw
1573
This video by Bruce Yeany shows a nice collection of homemade marble tracks used to teach motion, acceleration, inertia, potential and kinetic energy but also explain that, with gravity, the shortest path is not always the fastest [full video: buff.ly/3fDrCYt]
1574
Cownose rays typically swim in groups so that their synchronized wing flaps stir up sediment exposing buried clams and oysters, but this unusual 'spiral' captured by Alex Kydd in 2020 results very rarely observed [source: buff.ly/3HpoOLN]
1575
A seemingly mundane photograph of a sink full of soapy water draining itself can accidentally turn into an eye watching from the depths of the vortex [read more: buff.ly/UA4QUj]