💾 Archived View for gemini.susa.net › tweeters › tweets_Rainmaker1973.gmi captured on 2020-10-31 at 01:15:31. Gemini links have been rewritten to link to archived content
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Bio: Astronomy, astronautics, meteorology, physics. @Coelum_news columnist. Engineer, trying to build the big picture of #science via pics, videos & links
Location: Italy, North by Northwest
Manatees are known as 'sea cows' because of their similar size, peaceful temperament and diet of plants and weeds. When a herd of about ten of them calmly swims below, you can just silently watch them go by dailym.ai/1jDRZPj pic.twitter.com/MRaBLA294c
If you take your bowling ball to the skate park, you need geometry and phisics to turn a normal throw into a stunning trick shot [source and full video: buff.ly/2Ns8QUG] pic.twitter.com/GYYVoXlLoR
Photographer Yu Wu took this impressive close-up of a small ant biting a branch whilst holding up a rock [source: bit.ly/2kbPbi2] pic.twitter.com/cHy11uzbbM
The ocean is not silent, even in its greatest depths: these sounds, recorded in the Mariana Trench, are likely to be whales' songs bit.ly/2hB6O7B pic.twitter.com/4s0Uc18EoG
The design of the double helix staircase in the castle of Château de Chambord, is popularly attributed to Leonardo da Vinci. It is devised with 4 entries which cross one another so that though 4 persons meet, they never come in sight but by small loopholes buff.ly/2odkRm7 pic.twitter.com/QiupuvzsIJ
Curiosity is innate and universal. In this peculiar shot by photographer Tomasz Grabowiecki, a clown fish and a garden eel seem to inspect each other in a suspended moment [source: buff.ly/35LCmPD] pic.twitter.com/i9AA0ZoY9L
6 people get together in a home, one of whom is SARS-CoV-2 infected. Irrespective of whether safe distances are kept, if the 6 people spend 4 hours together talking loudly, without wearing a face mask in a room with no ventilation, 5 will become infected buff.ly/35GQwl3 pic.twitter.com/M3zjJx79ha
The 1950s science kit for kids which contained four samples of radioactive materials [read more: bit.ly/2BTzsZW] pic.twitter.com/PPXtlHWj4W
59 years ago #Today, the Soviet RDS-220 bomb ('Tsar Bomba'), the most powerful nuclear weapon ever detonated, was tested bit.ly/1SRY36L pic.twitter.com/7KboTImJ7r
Southern live oak was a secret weapon of the USS Constitution, one of America's first naval vessels, that was nicknamed "Old Ironsides" after so many cannonballs bounced off her hull because live oak wood is a super dense wood [read more: ow.ly/Bo0V50C7Fvo] pic.twitter.com/9uH2qgdlVb
What would the Earth look like from Earth if it was placed at the same distance of the Moon? [source: bit.ly/2As2Ndb] [note: distance Earth#2 - Moon is not to scale to the distance Earth - Moon] pic.twitter.com/XnXmpKKBQr
Stemonitis fusca is a species of slime mold. It fruits in clusters on dead wood and has distinctive tall brown sporangia. This 2010 time lapse by Daniel Brunner shows its captivating development in about 24 hours buff.ly/3bmXGgp [full video: buff.ly/2vhw3oA] pic.twitter.com/aN3ngNLCkX
The nest of the Rufous hornero is typical for the genus, a large thick clay "oven" placed on a tree, or man made structures such as fenceposts, telephone poles or buildings This is how it's done buff.ly/2HBDOcN [source of the gif: buff.ly/2YKg9fU] pic.twitter.com/IXPyoZBMhe
The moult of a stoat is initiated by photoperiod, the physiological reaction of organisms to the length of day or night. In the stoat's northern range, it adopts a completely white coat (save for the black tail-tip) during the winter period buff.ly/2PIAgXV pic.twitter.com/6CQUSAj7M5
The last day we were all together on the same planet. 20 years ago #today, ISS Expedition 1 was going to launch and start a new era where a group of people would always be in their new home in space [video: buff.ly/3kHW2tZ] #20YearInSpace #SpaceStation20th pic.twitter.com/d5LT11LXpP
Scientists analyzed the genomes of 27 ancient dogs to study their origins and connection to ancient humans. Findings suggest that humans' relationship to dogs is more than 11,000-years old and could be more complex than simple companionship [read more: buff.ly/3oMfJUb] pic.twitter.com/4gukoGkxMB
The geometry and dynamics of landing in a plane with a wingsuit targeting a door in the sky nearly 2 m² wide is prohibitive. Yet Fred Fugen and Vince Reffet recently succeeded over the Jungfrau mountain in Switzerland [source, full video: buff.ly/2NgubAl] pic.twitter.com/w7Wu6fs1Ij
The story of Manuela, the red-footed tortoise who mysteriously “disappeared” from a home in a suburb of Rio de Janeiro, Brazil, in 1982 and was found, alive, 31 years later while cleaning a storage shed - inside a box ow.ly/9iLo50ukAjc pic.twitter.com/iLBP6LQ55Z
How a pyrex measuring cup is made [source and full video: buff.ly/2SdEOJf] pic.twitter.com/xzyYLJtydR
Thanks Dave 😄
What would the Earth look like from Earth if it was placed at the same distance of the Moon? [source: bit.ly/2As2Ndb] [note: distance Earth#2 - Moon is not to scale to the distance Earth - Moon] pic.twitter.com/XnXmpKKBQr
Photographer Yu Wu took this impressive close-up of a small ant biting a branch whilst holding up a rock [source: bit.ly/2kbPbi2] pic.twitter.com/cHy11uzbbM
Researchers have devised a new kind of fiber: when spun together, strong, flexible threads are able to take shape, by combining chitin from blue crab shells and alginate, a compound found in seaweed [paper: buff.ly/38boYEn] [video: buff.ly/2UyhgQU] pic.twitter.com/gYGIt4CklD
Oh really. There's no RCT, but if you click on the link you can find more info about the conclusions drawn here.
Immune system remains a variable still playing a major role into this. The study reported here simply doesn't consider that and works on average situations. SARS-CoV-2 infection depends on a long list of factors and not all can be considered.
Masks are fundamental. You just need to ventilate. Period.
The nest of the Rufous hornero is typical for the genus, a large thick clay "oven" placed on a tree, or man made structures such as fenceposts, telephone poles or buildings This is how it's done buff.ly/2HBDOcN [source of the gif: buff.ly/2YKg9fU] pic.twitter.com/IXPyoZBMhe
Stetind is a mountain in Norway with an obelisk-shape which gives it a very distinct look. In 2002 it was voted to be the "National Mountain" of Norway by listeners of NRK buff.ly/31YJze7 [source of the gif, IG @mounteverestofficial: buff.ly/3oGYOlK] pic.twitter.com/pZmuIee6wB
This iconic picture taken by Michael Davies near the Arctic Circle shows us what happens when you hurl a thermos of hot tea at -40°C [source: buff.ly/2Ge5CGa] pic.twitter.com/qjoQ7k4GAZ
Now things get even more complicated
#Schroedinger #FridayFunday
[source: buff.ly/2ohTNSz] pic.twitter.com/nZWLzgZViB
6 people get together in a home, one of whom is SARS-CoV-2 infected. Irrespective of whether safe distances are kept, if the 6 people spend 4 hours together talking loudly, without wearing a face mask in a room with no ventilation, 5 will become infected buff.ly/35GQwl3 pic.twitter.com/M3zjJx79ha
The design of the double helix staircase in the castle of Château de Chambord, is popularly attributed to Leonardo da Vinci. It is devised with 4 entries which cross one another so that though 4 persons meet, they never come in sight but by small loopholes buff.ly/2odkRm7 pic.twitter.com/QiupuvzsIJ
In a landmark series of calculations, physicists have proved that black holes can shed information, which seems impossible by definition. The work appears to resolve a paradox that Stephen Hawking first described five decades ago buff.ly/35OnLCW pic.twitter.com/cvc3o2h9tn
How Samsung AI lab developed a tech that can animate highly realistic heads using only a few - or in some cases - only one starter image buff.ly/2HM2f5W pic.twitter.com/WowDV76Wdn
Curiosity is innate and universal. In this peculiar shot by photographer Tomasz Grabowiecki, a clown fish and a garden eel seem to inspect each other in a suspended moment [source: buff.ly/35LCmPD] pic.twitter.com/i9AA0ZoY9L
Now things get even more complicated
#Schroedinger #FridayFunday
[source: buff.ly/2ohTNSz] pic.twitter.com/nZWLzgZViB
Australian pelicans are one of the largest flying birds in the world; they also have the longest bills of any living bird [read more: buff.ly/3mFdIXZ] [source of the photo, Jess Young: buff.ly/3jJmWjM] pic.twitter.com/r8634tWOfM
What happens inside a granular material like sand when an object moves through it? This video is recording the pull out process of an intruder in the photoelastic granular material buff.ly/2w8YKSc pic.twitter.com/AT3fpxn4xV
Fire agate, a variety of chalcedony, is a semi-precious natural gemstone discovered so far only in certain areas of central and northern Mexico and the southwestern United States like New Mexico, Arizona and California [source of the photo, Isaac Jones: buff.ly/31WEBie] pic.twitter.com/OE514tjeyI
Stetind is a mountain in Norway with an obelisk-shape which gives it a very distinct look. In 2002 it was voted to be the "National Mountain" of Norway by listeners of NRK buff.ly/31YJze7 [source of the gif, IG @mounteverestofficial: buff.ly/3oGYOlK] pic.twitter.com/pZmuIee6wB