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24 Jul, 4 tweets, 3 min read
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
52 years ago #Today, the Apollo 11 Command Module Columbia splashed down at 13°19′N 169°9′W, in the Pacific Ocean bit.ly/29XgT7L
Neil relaxes in the Mobile Quarantine Facility on the USS Hornet, playing a ukulele, 52 years ago #Today go.nasa.gov/29XBwSc

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More from @Rainmaker1973

Massimo Profile picture
19 May
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] Image
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] Image
Sometimes mushroom-shaped icebergs can look like something else. This is an iceberg shaped like a dragon, towering ~ 15 feet above the waters of Muir Inlet, Glacier Bay National Park, Alaska [source: buff.ly/2EUK7cj] Image
Read 4 tweets
Massimo Profile picture
18 May
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
In these two pictures, Mount St. Helens is showed before and after the devastating 1980 eruption, happened 41 years ago #Today ow.ly/D9hG50wpiJN
Read 4 tweets
Massimo Profile picture
27 Jan
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
54 years ago #Today, president Lyndon Johnson received this memorandum announcing the tragedy of mission later known as #Apollo1 buff.ly/2jmgSP1
Read 4 tweets
Massimo Profile picture
28 Dec 20
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]
Another kind of anti-seismic foundation is obtained using pendulum bearings that consist of an upper/lower spherical plate with sliding surface applied with special coating and a moving disc [source, full video, magebagroup: buff.ly/2L1BOhO]
Read 4 tweets
Massimo Profile picture
14 Sep 20
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
There is, however, a different approach to mind uploading that uses a completely different set of technologies: mind virtualisation, i.e. extracting a number of characteristics from a mind to develop a model that can be used to simulate future behaviour buff.ly/2KdpXg4
Read 6 tweets
Massimo Profile picture
21 Dec 19
People have speculated over the nature of seemingly useless physical human characteristics for thousands of years. It wasn’t until the late 18th and early 19th centuries, though, that the idea of vestigiality would enter the public imagination ow.ly/jS5l30oigUH
Examples of human vestigiality are numerous, including the anatomical, the behavioral, and molecular. Among behavioral, goosebumps are caused by your arrector pili, the smooth muscle fibers that contract involuntarily when you are stressed, excited or cold buff.ly/2FRw2u7
The palmar and plantar grasp reflex is found in infants of humans and most primates. When an object is placed in an infant's hand or close to a foot, the fingers or the toes will close reflexively, as the object is grasped via palmar grasp ow.ly/Vj3830oiid1
Read 8 tweets

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