A Computer Named Katherine Johnson

Katherine Johnson

From her oral history as archived by the National Visionary Leadership Project:

[I]n June 1953, Katherine was contracted as a research mathematician at the Langley Research Center. At first she worked in a pool of women performing math calculations. Katherine has referred to the women in the pool as virtual “computers who wore skirts”.

Their main job was to read the data from the black boxes of planes and carry out other precise mathematical tasks.

Then one day, Katherine (and a colleague) were temporarily assigned to help the all-male flight research team. Katherine’s knowledge of analytic geometry helped make quick allies of male bosses and colleagues to the extent that, “they forgot to return me to the pool”.

While the racial and gender barriers were always there, Katherine says she ignored them. She simply told people she had done the work and that she belonged.

At NASA, Johnson started work in the all-male Flight Mechanics Branch and later moved to the Spacecraft Controls Branch.

She calculated the trajectory for the space flight of Alan Shepard, the first American in space, in 1959 and the launch window for his 1961 Mercury mission. She plotted backup navigational charts for astronauts in case of electronic failures.

In 1962, when NASA used computers for the first time to calculate John Glenn’s orbit around Earth, officials called on her to verify the computer’s numbers. Ms. Johnson later worked directly with real computers.

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…and a ton of other projects, including the Apollo 11 lunar trajectory, plans for a mission to Mars, and the Space Shuttle program.

Top photo credit NASA/David C. Bowman.
Center photo by Brian Koberlein.
Bottom photo via the 1962 NASA documentary Friendship 7, captured and enhanced by Colin Mackellar.
Bottom quoted text via Wikipedia.

The British Spy Who Used Semen To Make Invisible Ink

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Secret inks were our stock in trade and all were anxious to obtain some which came from a natural source of supply.

I shall never forget [Captain Cumming’s] delight when the Chief Censor [Frank] Worthington came one day with the announcement that one of his staff had found out that semen would not respond to iodine vapour and told the man that he had had to remove the discoverer from the office immediately as his colleagues were making life intolerable by accusations of masturbation.

[O]ur man in Copenhagen, Major [Richard] Holme, evidently stocked it in a bottle, for his letters stank to high heaven and we had to tell him that a fresh operation was necessary for each letter.

Captain Cumming? Seriously?

Photo via the September 1935 issue of Popular Mechanics.
By Michael Smith via Six: The Real James Bonds 1909-1939.

 

 

 

 

Marie Curie’s Notebook Requires the Protection of a Lead Box

L0021265 Marie Curie: Holograph Notebook.

Marie Curie made some of the most significant contributions to science in the 20th century. And as most people already know, she did so at a great cost to her own health. [T]he radiation levels she was exposed to were so powerful that her notebooks must now be kept in lead-lined boxes.

Marie Curie was basically walking around with bottles of polonium and radium in her pockets all the time. She even kept capsules full of the dangerous stuff on her shelf.

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“One of our joys was to go into our workroom at night; we then perceived on all sides the feebly luminous silhouettes of the bottles of capsules containing our products,” the Nobel Prize-winning scientist wrote in her autobiography.

“It was really a lovely sight and one always new to us. The glowing tubes looked like faint, fairy lights.”

The radium that Curie carried around in her pockets has a half-life of 1,601 years, so her notebook and other possessions are due to stay in those lead-lined boxes for a long, long, long time…

Via Factually.

The Victoria Inflated Skirt

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Helen Traphagen set about designing and patenting the “Victoria Inflated Skirt” in 1857. The sketch below is an attachment to a patent granted by the United States Secretary of the Interior for a “new and useful improvement in ‘Ladies Skirts'”.

[T]he description affixed to the patent states:

“The nature of [the] invention consists of attaching to the body of a skirt, or petticoat, a series of air tight tubes, to be inflated with air, for the purpose of expanding the surface of the skirt, to give a ‘set’ to the dress similar to that affected by the use of hoops, cords, and other devices now in use.”

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It doesn’t look like this was ever put into mass production, but its existence aptly points to both the popularity of full skirts combined with their inherent impracticality due to their bulk and weight.

Via Museum of the City of New York.

The Russian Exclave of Kaliningrad

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I am sure this is common knowledge in Europe, or at least Eastern Europe, but it isn’t often that I learn a new word at the same time as have my geographical knowledge of Europe revised.

Most people know the term enclave, but what about exclave? That is, per Dictionary.com, “a portion of a country geographically separated from the main part by surrounding alien territory”.

Apparently, Russia has just such a geographically separated portion of its country on the Baltic Sea – specifically, Kaliningrad.

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Kaliningrad is a seaport city and the administrative center of Kaliningrad Oblast, the Russian exclave between Poland and Lithuania on the Baltic Sea. The territory borders on NATO and European Union members Poland and Lithuania, and is geographically separated from the rest of Russia.

The locality was a site of the ancient Old Prussian settlement/fort Twangste. In 1255, a new fortress was built on this site by the Teutonic Knights during the Northern Crusades, and was named “Königsberg” in honour of King Ottokar II of Bohemia.

Until the end of World War II, the area formed the northern part of the former East Prussia.

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The city was largely destroyed during World War II; its ruins were captured by the Red Army in 1945 and its German population fled or was removed by force.

It was renamed Kaliningrad after the death of Chairman of the Presidium of the Supreme Soviet of the USSR, Mikhail Kalinin, one of the original Bolsheviks.

All military and civilian land links between the region and the rest of Russia have to pass through members of NATO and the EU.

Via Wikipedia.

The Medieval Zombie Manuscript

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The precise origins of the Three Living and the Three Dead are still somewhat mysterious, but there are many versions of the tale dating back to the 13th century, with the best-known coming from England and France.

The basic version of the story goes like this: three young noblemen are out hunting when they suddenly come across three corpses, which are in varying states of decay, but nonetheless still animated.

Unsurprisingly, the young men express shock and dismay at the sight, while the three corpses admonish them to consider the transience of life and to improve their behaviour before it is too late.

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These bas-de-page scenes can be found in the Taymouth Hours towards the end of the The Office of the Dead, a set of prayers for the dead and dying that were included in virtually every medieval Book of Hours.

The Office of the Dead in Add MS 35313 opens with a scene of the Three Living encountering the Three Dead while out hawking, and is unusual in including a woman among the hunting party. This miniature may be a copy of a similar scene in a Book of Hours that belonged to Mary of Burgundy, who was the mother-in-law of Joanna I of Castile

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The Three Dead Kings (Middle English from West Staffordshire)

Þen speke þe henmest kyng, in þe hillis he beholdis,
He lokis vnder his hondis and his hed heldis;
Bot soche a carful k[ny]l to his hert coldis,
So doþ þe knyf ore þe kye, þat þe knoc kelddus.
Hit bene warlaws þre þat walkyn on þis woldis.
Oure Lord wyss us þe rede-way þat al þe word weldus!
My hert fare[s] fore freȝt as flagge when hit foldus,
Vche fyngyr of my hond fore ferdchip hit feldus.
Fers am I ferd of oure fare;
Fle we ful fast þer-fore.
Can Y no cownsel bot care.
Þese dewyls wil do vs to dare,
Fore drede lest þai duttyn vche a dore.

  • Text in Turville-Petre, T. (ed.) Alliterative Poetry of the Later Middle Ages: An Anthology, London: Routledge, 1989, pp. 148 – 157

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Then speaks the last king, he looks in the hills
He looks under his hands and holds his head;
But a dreadful blow goes cold to his heart
Like the knife or the key, that chills the knuckle.
“These are three demons that walk on these hills
May our Lord, who rules all the world, show us the quickest way out!
My heart bends with fright like a reed,
Each finger of my hand grows weak with fear.
I’m forcefully afraid of our fate;
Let us quickly flee, therefore.
I can give no counsel but worry.
These devils will make us cower
For dread lest they shut each escape.”

  • Translation by Turville-Petre

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These were quite familiar to those of the era, enough such that they were generally not considered as to need explicit explanation of their depictions. (Well, or maybe it just meant zombies were as well-known to those of the era as to us in the modern era…)

It is all a great reminder that our modern depiction and understanding of the concept of Death and the Grim Reaper is a reflection of our own cultural intuitions; the Middle Ages was quite a bit more familiar with death than the average modern person, and did not at all see death necessarily as an enemy – but as in this case, sometimes as an advisor.

Well, and also a terrifying advocate beyond the Veil who wants to bring you into the fold. So I guess some aspects don’t change.

Via British Library.

Predicting the Future and Diagnosing Illness with the Medieval Wheel of Urine

L0030213 U. Binder, Epiphaniae medicorum, 1506.

The colour, smell, and even taste of urine was used to both identify particular illnesses and provide patient prognoses, from Hippocrates to the Victorian era.

The practice, called uroscopy or uromancy, was, according to the Doctor’s Review, “once the number-one way to diagnose disease — and predict the future”.

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Uromancy? Uromancy? If I hadn’t double-checked the date and cross-referenced this, I would think I was being tragically punked like the time I fell for the medieval recipe for unicorn.

(Okay, that one was pretty good…)

Via edible geography for the full article and more images.