Vintage elevators, a thread

1. XIX century steam-powered elevator in the house of Guard Captain S. Muyaki, St. Petersburg, Russia. 2. Elevator in Vienna, designed by Otto Wagner in 1898.

Born 400 years ago #Today, Blaise Pascal was child prodigy, mathematician, physicist, inventor, writer and Catholic theologian. He was pioneer in the natural and applied sciences and invented one of the first mechanical calculators

[read more: buff.ly/2MDyfef] Pascal designed and built one of the earliest mechanical calculators, known as Pascal's Calculator or Pascaline. It was a pioneering device that used gears and wheels to perform addition and subtraction. It laid the foundation for mechanical computation

54 years ago #Today, one of the most famous images ever taken was snapped from the orbit of the Moon. Now known as "Earthrise", with modern digital technology, the iconic image -- originally in black and white -- has been remastered ow.ly/Hir130n5JpX “The vast loneliness up here of the Moon is awe inspiring, and it makes you realize just what you have back there on Earth. The Earth from here is a grand oasis to the big vastness of space.” — Apollo 8 astronaut Jim Lovell buff.ly/2EMnMMG #Apollo8 #54YearsAgoToday

The Large Hadron Collider is the world’s largest, most powerful particle accelerator: in a way it's the world's largest single machine. It consists of a 27-km ring excavated between the lake of Geneva and the Jura mountain range at an average depth of 100 m. Let's see some facts Each of the 6000-9000 superconducting filaments of niobium-titanium coiled between them to make up the LHC cables is 0.007 mm thick, about 10 times thinner than a normal human hair. If put one after another they would stretch from the Earth to the Sun and back six times

This account has just been blocked for suspicious behavior and unblocked upon providing authentication. The problem is that @TwitterSupport doesn't send an email notification for this and it's not possible to clarify if rules have been violated or it's an hacking attempt This is not good, an account should have enough transparency to know what are the reason of a block. This happened last year in the same way and no message or notification was ever released. This is quite scary and not helping plan any action.

You may remember this tweet. My sister and I finally had a go for respectively donating and receiving a kidney. My transplant will be in October, either before mid-month or at the end of the month 1/🧵

https://twitter.com/Rainmaker1973/status/1495342898115710980?s=20&t=V3on1A00Qn9yhVTUxSOpmg

The very good news is that I won’t need to remove (at least initially) any existing kidney as it was projected until August. This means that, for now, I’ll have one operation and not two and potentially no need to undergo dialysis. A last minute surprise, in other words.

The red eye effect in flash photographs is caused by the flash bouncing off your retina. When you see red eyes, you are literally seeing the back of your eyeballs through your dilated pupils [read more: buff.ly/2CEWkyw] The main cause of the red color is the ample amount of blood in the choroid which nourishes the back of the eye and is located behind the retina [read more: buff.ly/3aBzPfa]

42 years ago #Today, Mount St. Helens erupted: the deadliest and most destructive volcanic event in the history of the U.S. [read more: bit.ly/1L0dKzT] [video: buff.ly/3yi2RK7] A red Ford Pinto with a blue dirt bike before the hell. The story behind one of the most puzzling photos of Mount St Helens' May 1980 eruption, happened 42 years ago #Today ow.ly/2aJK50vujyW

The Large Hadron Collider is the world’s largest, most powerful particle accelerator: in a way it's the world's largest single machine. It consists of a 27-km ring excavated between the lake of Geneva and the Jura mountain range at an average depth of 100 m. Let's see some facts Each of the 6000-9000 superconducting filaments of niobium-titanium coiled between them to make up the LHC cables is 0.007 mm thick, about 10 times thinner than a normal human hair. If put one after another they would stretch from the Earth to the Sun and back six times

Hunga Tonga-Hunga Ha'apai volcano explosive activity continues. Volcanic Ash Advisory Center Wellington warned about a volcanic ash plume that rose up to estimated 52000 ft (15800 m) altitude or flight level 520 and is moving at 05 kts in N direction buff.ly/3tz5maT NOAA NESDIS provides a coverage of the Tonga eruptions with satellite imagery from GOES West and Himawari-8 satelites: buff.ly/33A3Wly

17 years ago #Today, ESA's Huygens spacecraft made its descent to the surface of Saturn's moon Titan, carried to the gas giant by NASA's Cassini spacecraft ow.ly/sZVN30nhabb This the last view of Huygens from the Cassini spacecraft 17 years ago #Today. Thanks to @esa for sharing the photo: buff.ly/3I4YWUZ

The last human's view from the surface of the Moon so far: a post EVA-3 window pan by Jack Schmitt, Apollo 17, taken 49 years ago #Today go.nasa.gov/2gLet2C The last time we walked on the Moon. Portraits of Gene Cernan and Jack Schmitt onboard the lunar module Challenger before lift off, 49 years ago #Today go.nasa.gov/2gLet2C #Apollo17

Pete Conrad's shadow in a lunar surface opposition surge instant. This was happening 52 years ago #Today go.nasa.gov/2fs41dh #Apollo12 A famous crossed lunar selfie: Alan Bean's picture of Pete Conrad taking Alan's picture during #Apollo12's extravehicular activity, 52 years ago #Today go.nasa.gov/2g6SmjS

52 years ago #Today, the Apollo 12 crew landed on the Moon. This is the Intrepid Lunar Module prior to the descent. The largest crater is Ptolemaeus go.nasa.gov/2fV0eoE The Apollo 12 crew prepare for undocking and TV coverage of the event, followed by the second lunar landing attempt on the Ocean of Storms, 52 years ago #Today buff.ly/2D12Zly

Dave Scott performed one of the most legendary experiments: the galilean 'hammer & feather' held on the Moon, 50 years ago #Today go.nasa.gov/1mVWEHT #Apollo15 #Apollo50 One of the best series of photos taken during the Apollo 15's third extravehicular activity, 50 years ago #Today go.nasa.gov/2aKCzsh [5 photos stitched with MS ICE] #Apollo50

52 years ago #Today, the Apollo 11 mission returned safely to Earth. This is the view of Earth that the crew had before reentry go.nasa.gov/2aDLlWm This is what the Apollo 11 crew saw when they reentered the Earth's atmosphere exactly 52 years ago #Today go.nasa.gov/2aDLlWm

This impressive photo by Keri Lee Nelson shows us a mushroom-shaped iceberg. Part of a larger iceberg that's slowly shedding weight via calving, as it loses weight the smooth part (which has been submerged for some time) is rising out the water [source: buff.ly/2QLLvRd] This mushroom iceberg was observed in 1912 by Frank Hurley, who visited Antarctica as a member of the First Australasian Antarctic Expedition, 1911-1914 [source: buff.ly/3jDM9wI]

41 years ago #Today, Mount St. Helens erupted: the deadliest and most destructive volcanic event in the history of the U.S. [read more: bit.ly/1L0dKzT] [video: buff.ly/3yi2RK7] A red Ford Pinto with a blue dirt bike before the hell. The story behind one of the most puzzling photos of Mount St Helens' May 1980 eruption, happened 41 years ago #Today ow.ly/2aJK50vujyW

They didn't make it to the Moon, but through their efforts and sacrifice we all did. The Apollo1 tragedy happened 54 years ago #Today [source, read more: buff.ly/2jvXRwW] «If we die we want people to accept it. We are in a risky business, and we hope that if anything happens to us, it will not delay the program. The conquest of space is worth the risk of life» - Virgil "Gus" Grissom, died on the #Apollo1 54 years ago #Today bit.ly/2Bx5UiV

This animation shows the different effects produced by an earthquake on the conventional and anti seismic foundation of a building [source, Said Lopez: buff.ly/3nPrt7j] Anti-seismic fondation can use several kinds of dampeners. This is a bi-directional dynamic loading test on steel damper for base isolated buildings simulating the behavior caused by earthquake [source, full video, Tokyo Tech: buff.ly/3mV1cDo]

Last year, a company named Nectome, "advetised" a service for backing up & (eventually) digitizing people's brains which was going to be 100%-fatal. They retracted saying it wasn't correct they expected to revive a whole consciousness from the connectome buff.ly/2YT1Eaq The actual computational requirements for running an uploaded human mind are very difficult to quantify & strongly depend on the chosen level of simulation model scale. In other words, if you want a very precise copy, you need a ginormous processing power buff.ly/2G0UCYG