Today marks the anniversary of Imperial Japan’s attack on the US naval base at Pearl Harbor. The late and very great blogger Neptunus Lex (Captain Carroll LeFon, USN) wrote about entering Pearl Harbor aboard the USS Constellation, when returning from his first cruise in 1987.
History
Worthwhile Reading and Watching
The Middle Ages may have been more colorful than usually thought, based on an inventory of garments belonging to people in medieval Valencia.
Memnon of Rhodes says “There is a subset of the US precariat class that is quickly becoming the new face of genteel poverty — characterized by a combination of high academic achievement and poor financial prospects (think post docs, academics, journalists, nonprofit staff).”. Noah Smith opines “This is the Bernie base. They are people who *could* get high paying jobs thanks to their general intelligence and education level, but are downwardly mobile due to some combination of emotional problems, chasing “cool” professions, disdain for the business world, and laziness.”
I note that to the extent these people earn over $150K and lives in dense urban areas, they will be categorized as ‘elites’ according to a categorization used in a widely-circulated Rasmussen survey of political attitudes.
(I never heard the term ‘precariat’ before, but it seems useful)
Bad election narratives, by Musa al-Gharbi, summarized and discussed at the Assistant Village Idiot’s blog.
Glenn Reynolds: Is AI Coming for Your Kids? The example of the kid asking ChatGPT about how cars are made, and then talking with it about counting, is impressive, and there is obviously a lot of value in this kind of thing. But, the possibilities for the ‘nudging’ of political, social, and philosophical attitudes, in the direction desired by the creators of the system, is immense. See my post Stories and Society for some related thoughts.
Canada: the ongoing disaster and the possibilities for change, at Stuart Schneiderman’s blog, along with several other interesting items.
Several discussions going on about the the prospects for manufacturing in America:
Andrew McCalip says “We have an existential manufacturing problem in America.”
Zane Hensperger writes about reindustrialization and especially about machine shops.
Bill Waddell has several essays at LinkedIn, including Manufacturing in the Age of Tariffs, The Ethics of Free Trade, and 12 Million Middle Class Jobs Sacrificed on the Altar of Globalization.
Marc Andreessen says “From near total dominance in manufacturing to near total dominance in technology. What happens if we dominate in both? Let’s find out!”
For contrast, a WSJ article: Factories Aren’t the Future. I do wonder whether, when thinking about factories, the economist who wrote the article visualizes processes like this.
And finally, watch this mountain lion experimenting with a swing.
Happy Thanksgiving to all!
Lighted Airways and the Radio Range (updated)
When airplanes first started to be used for serious transportation purposes, sometime after World War I, the problems involved with flight at night and in periods of low visibility became critical. Transcontinental airmail, for example, lost much of its theoretical speed advantage if the plane carrying the mail had to stop for the night. Gyroscopic flight instruments addressed the problem of controlling the airplane without outside visual references, but there remained the problem of navigation.
An experiment in 1921 demonstrated that airmail could be successfully flown coast-to-coast, including the overnight interval, with the aid of bonfires located along the route. The bonfires were soon displaced by a more permanent installation based on rotating beacons. The first lighted airway extended from Chicago to Cheyenne…the idea was that pilots of coast-to-coast flights could depart from either coast in early morning and reach the lighted segment before dusk. The airway system rapidly expanded to cover much of the country–by 1933, the Federal Airway System extended to 18,000 miles of lighted airways, encompassing 1,550 rotating beacons. The million-candlepower beacons were positioned every ten miles along the airway, and in clear weather were visible for 40 miles. Red or green course lights at each beacon flashed a Morse identifier so that the pilot could definitely identify his linear position on the airway.
Lighted airways solved the navigation problem very well on a clear night, but were of limited value in overcast weather or heavy participation. You might be able to see the beacons through thin cloud or light rain, but a thicker cloud layer, or heavy rain/snow, might leave you without navigational guidance.
The answer was found in radio technology. The four-course radio range transmitted signals at low frequency (below the AM broadcast band) in four quadrants. In two of the quadrants, the Morse letter N (dash dot) was transmitted continuously; in the other two quadrants, there was continuous transmission of the Morse A (dot dash.) The line where two quadrants met formed a course that a pilot could follow by listening to the signal in his headphones: if he was exactly “on the beam,” the A and the N would interlock to form a continuous tone; if he was to one side or the other, he would begin to hear the A or N code emerging.
The radio range stations were located every 200 miles, and were overlaid on the lighted airways, the visual beacons of which continued to be maintained. The eventual extent of the radio-range airway system is shown in the map below. All that was required in the airplane was a simple AM radio with the proper frequency coverage.
The system made reliable scheduled flying a reality, but it did have some limitations. Old-time pilot Ernest Gann described one flight:
Beyond the cockpit windows, a few inches beyond your own nose and that of your DC-2’s, lies the night. Range signals are crisp, the air smooth enough to drink the stewardess’s lukewarm coffee without fear of spilling it…Matters are so nicely in hand you might even flip through a magazine while the copilot improves his instrument proficiency…
Suddenly you are aware the copilot is shifting unhappily in his seat. “I’ve lost the range. Nothing.”
You deposit the Saturday Evening Post in the aluminum bin which already holds the metal logbook and skid your headphones back in place…There are no signals of any kind or the rap of distance voices from anywhere in the night below. There is only a gentle hissing in your headphones as if some wag were playing a recording of ocean waves singing on a beach.
You reach for a switch above your head and flip on the landing lights. Suspicion confirmed. Out of the night trillions of white lines are landing toward your eyes. Snow. Apparently the finer the flakes the more effective. It has isolated you and all aboard from the nether world. The total effect suggests you might have become a passenger in Captain Nemo’s fancy submarine.
The Cuban Missile Crisis, as Viewed From a Soviet Launch Facility (rerun)
This month marks the 62nd anniversary of the Cuban Missile Crisis, which brought the world dangerously close to thermonuclear war. Reflecting on this crisis seems particularly appropriate in our current era, when the threat of nuclear war has again come forward from the background to which it had been hopefully consigned. More countries now possess or are on track to possess nuclear weapons, and some of them are ruled by very malevolent people and true fanatics.
Several years ago, I read Rockets and People, the totally fascinating memoir of Soviet rocket developer Boris Chertok, which I reviewed here. Chertok’s career encompassed both military and space-exploration projects, and in late October 1962 he was focused on preparations for launching a Mars probe.
On the morning of Oct 27, he was awakened by “a strange uneasiness.” After a quick breakfast, he headed for the missile assembly building, known as the MIK.
At the gatehouse, there was usually a lone soldier on duty who would give my pass a cursory glance. Now suddenly I saw a group of soldiers wielding sub-machine guns, and they thoroughly scrutinized my pass. Finally they admitted me to the facility grounds and there, to my surprise, I again saw sub-machine-gun-wielding soldiers who had climbed up the fire escape to the roof of the MIK. Other groups of soldiers in full combat gear, even wearing gas masks, were running about the periphery of the secure area. When I stopped in at the MIK, I immediately saw that the “duty” R-7A combat missile, which had always been covered and standing up against the wall, which we had always ignored, was uncovered.
Chertok was greeted by his friend Colonel Kirillov, who was in charge of this launch facility. Kirollov did not greet Chertok with his usual genial smile, but with a “somber, melancholy expression.”
Without releasing my hand that I’d extended for our handshake, he quietly said: “Boris Yevseyevich, I have something of urgent importance I must tell you”…We went into his office on the second floor. Here, visibly upset, Kirillov told me: “Last night I was summoned to headquarters to see the chief of the [Tyura-Tam] firing range. The chiefs of the directorates and commanders of the troop units were gathered there. We were told that the firing range must be brought into a state of battle readiness immediately. Due to the events in Cuba, air attacks, bombardment, and even U.S. airborne assaults are possible. All Air Defense Troops assets have already been put into combat readiness. Flights of our transport airplanes are forbidden. All facilities and launch sites have been put under heightened security. Highway transport is drastically restricted. But most important—I received the order to open an envelope that has been stored in a special safe and to act in accordance with its contents. According to the order, I must immediately prepare the duty combat missile at the engineering facility and mate the warhead located in a special depot, roll the missile out to the launch site, position it, test it, fuel it, aim it, and wait for a special launch command. All of this has already been executed at Site No. 31. I have also given all the necessary commands here at Site No. 2. Therefore, the crews have been removed from the Mars shot and shifted over to preparation of the combat missile. The nosecone and warhead will be delivered here in 2 hours
Chertok, who at this point was apparently viewing the Cuban affair as a flash in the pan that would be resolved short of war, was concerned that moving the Mars rocket would cause them to miss their October 29 launch date, and suggested that the swap of the rockets be delayed for a few hours. Kirillov told him that this was impossible, and that he should go to the “Marshal’s cottage,” where some of his associates wanted to see him. Chertok’s response:
Yes, sir! You’re in charge! But, Anatoliy Semyonovich! Just between you and me do you have the courage to give the ‘Launch!’ command, knowing full well that this means not just the death of hundreds of thousands from that specific thermonuclear warhead, but perhaps the beginning of the end for everyone? You commanded a battery at the front, and when you shouted ‘Fire!’ that was quite another matter.
Kirillov:
There’s no need to torment me. I am a soldier now; I carry out an order just as I did at the front. A missile officer just like me, not a Kirillov, but some Jones or other, is standing at a periscope and waiting for the order to give the ‘Launch’ command against Moscow or our firing range. Therefore, I advise you to hurry over to the cottage.
Goethe, the Original Gretchen, and the Hackers of 1764 (rerun)
When Goethe was 15, he was already recognized by friends as an exceptional writer. One of these friends, “Pylades,” told Goethe that he had recently read some of his verses aloud to “some pleasant companions…and not one of them will believe that you have made them.” Goethe said he didn’t much care whether they believed it or not, but just then one of the “pleasant companions” showed up, and Pylades proposed a way of convincing the fellow of Goethe’s abilities: “Give him any theme, and he will make you a poem on the spot.”
The disbeliever asked Goethe if he “would venture to compose a pretty love-letter in rhyme, which a modest young woman might be supposed to write to a young man, to declare her inclination.”
“Nothing easier,” said Goethe, and after thinking for a few minutes commenced to write. The now-former disbeliever was very impressed, said he hoped to see more of Goethe soon, and proposed an expedition into the country. For this expedition, they were joined by several more young men “of the same rank”…intelligent and knowledgeable, but from the lower and middle classes, earning their livings by copying for lawyers, tutoring children, etc.
These guys told Goethe that they had copied his letter in a mock-feminine hand and had sent it to “a conceited young man, who was now firmly persuaded that a lady to whom he had paid distant court was excessively enamored of him, and sought an opportunity for closer acquaintance.” The young man had completely fallen for it, and desired to respond to the woman also in verse…but did not believe he had the talent to write such verse.
Believing it was all in good fun, Goethe agreed to also write the reply. Soon, he met the would-be lover, who was “certainly not very bright” and who was thrilled with “his” response to his inamorata.
While Goethe was with this group, “a girl of uncommon…of incredible beauty” came into the room. Her name was Gretchen, and she was a relative of one of the tricksters present. Goethe was quite smitten:
“The form of that girl followed me from that moment on every path; it was the first durable impression which a female being had made upon me: and as I could find no pretext to see her at home, and would not seek one, I went to church for love of her, and had soon traced out where she sat. Thus, during the long Protestant service, I gazed my fill at her.”
The tricksters soon prevailed upon Goethe to write another letter, this one from the lady to the sucker. “I immediately set to work, and thought of every thing that would be in the highest degree pleasing if Gretchen were writing it to me.” When finished, he read it to one of the tricksters, with Gretchen sitting by the window and spinning. After the trickster left, Gretchen told Goethe that he should not be participating in this affair: “The thing seems an innocent jest: it is a jest, but it is not innocent”…and asked why “you, a young man man of good family, rich, independent” would allow himself to be used as a tool in this deception, when she herself, although a dependent relative, had refused to become involved by copying the letters.
Gretchen then read the epistle, commenting that “That is very pretty, but it is a pity that it is not destined for a real purpose.” Goethe said how exciting it would be for a young man to really receive such a letter from a girl he cared about, and…greatly daring…asked: “if any one who knew, prized, honored, and adored you, laid such a paper before you, what would you do”…and pushed the paper, which she had previously pushed back toward him, nearer to Gretchen.
“She smiled, reflected for a moment, took the pen, and subscribed her name.”