676
It takes 31 elements (four that come from conflict zones) to make a smartphone. This periodic table visulises their quantity and rarity
[source, read more: ow.ly/m16P30ncD9R]
677
Cotylorhiza tuberculata is a species of jellyfish also known as fried egg jellyfish due to shape of its elevated central dome
[read more: buff.ly/3HhC0Cm-]
[source of the clip: buff.ly/3DgobSi-]
678
In this video, YouTube channel Robinson Foundry shows how they made a bolt with unique zigzag threads starting from a 3D printed model [full video: buff.ly/3neAWHB]
679
Researchers found that when a champagne bottle is uncorked, the CO₂ and water that is released creates under-expanded supersonic CO₂ freezing jets. This is actually the formation of a Mach disk during champagne cork popping [read more: buff.ly/2kBr7G7]
680
Although they may resemble shrews, hedgehogs, or opossums, tenrecs are not closely related to any of these groups. This one at the Smithsonian's National Zoo is dust-bathing and rubbing the new scent into its spines [source: buff.ly/3ovZYRA-]
681
This is the best image we have of what we call an atom (OR, in quantum physics terms, of its wave function) [source, read more: buff.ly/2npcmWT]
682
Sea lions physiology allow them to dive for long periods of time, very deep and in nearly any condition. See them ride roaring waves near Santa Barbara Island, California
[read more: buff.ly/3RtYTXn]
[📹 Ryan Lawler: buff.ly/39KwXKz]
683
A master of camouflage, Uropyia meticulodina is a 45-55 mm moth that may be found imitating a dead leaf on the forest floors of China and Taiwan
[read more: buff.ly/2O50GVl-]
[full video by Kazuo Unno: buff.ly/3CiT2w4-]
684
This is how two colliding galaxies interact and merge into a single elliptical galaxy over a period spanning two billion years of evolution, in a simulation made by the Advanced Visualization Laboratory (AVL) at NCSA
[read more: buff.ly/3vCi2eH]
685
The story of Lélia and Sebastião Salgado, the couple who worked since the 1990s on the restoration of a part of the Atlantic Forest in Brazil, helping plant 4 million saplings [read more: buff.ly/2GE5RX4]
686
Elephant's toothpaste
[read more: buff.ly/2KTc4SI]
[📹 buff.ly/3elzWPy]
687
Another way to show the Mercator projection's distortions on a planisphere, is to consider that every circle on this map has the same 500 mile radius
[source, credits and more: ow.ly/VAyJ50Ach4L]
688
After months of chasing starlings, photographer James Crombie captured this remarkable shot of the flock as it swelled into an enormous bird-like murmuration [read more, author's site: inpho.ie]
689
In 1984, high above the Earth's surface, an astronaut captured a satellite. Dale A. Gardner flew free using the Manned Maneuvering Unit and began to attach a control device dubbed the Stinger to the rotating Westar 6 satellite [read more: buff.ly/2V1wCN7]
690
The cocoa powder contains fat with a hydrophobic quality and this is why when you touch it with a toothpick, the layer of milk seems to magically fall off leaving the cocoa powder underneath perfectly dry
[read more: buff.ly/3q89Ous]
691
Orangutans share 96.4% of genes, 28 physical characteristics, and a number of behavioral traits with humans.
No wonder things like this happen so easily.
[📹 TikTok's minorcrimes: buff.ly/3Ba4cWK]
#FridayFunday
692
The Asch conformity experiments (1951-1956)
people conform for two main reasons: they want to fit in with the group and because they believe the group is more informed than they are
[read more: buff.ly/3AMy8GY]
693
A Great Argus pheasant tries to charm the female bird with courtship dance
[source: buff.ly/3D1vy2u]
[read more: buff.ly/3ABSq64]
694
Building and testing different LEGO mechanisms to create a water vortex inside an enclosed plastic ball and explore fluid mechanics
[full video, Brick Technology: buff.ly/3ABTxTi]
695
Frank Drake, the eminent radio astronomer known for his pioneering efforts in the search for extraterrestrial intelligence, among which the Arecibo message and the Drake equation, died #Today at his home in Aptos, California. He was 92 buff.ly/3e82xb4
696
The Drake Equation, explained in one of Carl Sagan’s most widely known episodes of his iconic television program, Cosmos [full video: buff.ly/3uA8tMt] #FrankDrake
697
20 years ago #Today, a strange object designated J002E3 was discovered. It was in a temporary orbit around the Earth. It turned out to be an Apollo 12 rocket stage launched in 1969 that had returned [read more: buff.ly/2NIA6yu]
698
55 years ago #Today, Sweden switched from left-hand to right-hand traffic. This is a picture of Stockholm on that day [read more: bit.ly/2vDCfGU]
699
Aeroponics is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium (known as geoponics). These are potatoes being grown in air [read more: buff.ly/2q9Lj0z]
700
"Confusing perspective"
[📹 Larry Carlson: buff.ly/3qaubXW]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links