Today I Learned

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Discussion Overview

The thread invites participants to share daily lessons or interesting facts they have learned, encompassing a wide range of topics from personal experiences to historical facts, scientific insights, and humorous observations. The scope includes casual learning, trivia, and personal anecdotes.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants share personal insights, such as learning about the cleaning of hats or the time spent with medical specialists.
  • Others discuss historical techniques like "oyster veneering" and its revival, with one participant clarifying it is not a food-preparation method.
  • Mathematical observations are made regarding factorials, specifically that 23! has 23 digits, with some participants exploring the implications of this coincidence.
  • Several participants mention humorous or trivial facts, such as the number of microbes transferred in a kiss or the age of Cambridge University compared to the Aztecs.
  • Some participants express personal reflections on learning new words or concepts, such as "hyperacusis" and its effects on their music-making.
  • There are repeated claims about the impact of television on body image, with some participants sharing personal experiences related to this topic.

Areas of Agreement / Disagreement

The discussion features a variety of viewpoints and personal anecdotes, with no clear consensus on any specific topic. Participants express differing opinions and experiences, particularly regarding the effects of television and the historical context of various facts shared.

Contextual Notes

Some claims made in the discussion are based on personal experiences or anecdotal evidence, and there are instances of participants correcting or refining each other's statements without reaching a definitive conclusion.

Who May Find This Useful

Readers interested in casual learning, trivia, personal anecdotes, or exploring a variety of topics in a light-hearted manner may find this thread engaging.

  • #6,871
I'd like to see the overlaps, perhaps a Venn diagram.
 
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Physics news on Phys.org
  • #6,872
Swamp Thing said:
TIL that the name "Meccano" was supposed to suggest "make and know", apart from the obvious mechanical concept.

For non-British members, this was a model construction set similar to the US Erector Set, with which it completed for a few years before withdrawing from the American market.
My brother and I used both systems when were young.
 
  • #6,873
Hornbein said:
From a 2013 Public Policy Polling poll ....

0.015% hold PhDs in physics.
I wonder when I read these polls how many of the small response items are people just #$@^&# with the pollsters. 4% believe in shape shifting reptilian people? Really? 1 out of every 25 people? Not in my community (I think hope).

Then I wonder if the pollsters add questions like that just to determine the legitimacy of the responant.
 
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  • #6,874
DaveE,
Watch for false dilemma polls. ( in ref. to post #6873)
 
  • #6,875
TIL about Operation London Bridge.
Operation London Bridge was the funeral plan for Queen Elizabeth II. The plan included the announcement of her death, the period of official mourning, and the details of her state funeral. The plan was created as early as the 1960s and revised many times in the years before her death in September 2022.

The phrase "London Bridge is down" was to be used to communicate the death of the Queen to the prime minister of the United Kingdom and key personnel, setting the plan into motion

The idea of a bowler-hatted official solemnly intoning "London Bridge is down" seemed to be not without its comedic possibilities, so I requested AI to come up with a Monty Python style script on this premise.

Here is AI's effort:
[SCENE START]
REGINALD:
(Picking up a secure red rotary phone, voice trembling with gravity) It is done. (Beat) Give me the Commissioner.
[Split screen: ARTHUR’S phone rings. He picks up with a greasy hand.]
ARTHUR:
Hello, Pike & Sons? We’re a bit backed up at the moment, if it’s about the tiling in Bromley, we’ve run out of grout.
REGINALD: (Ignoring him, speaking in a rehearsed, somber tone) The clouds have gathered over the Thames. The Eagle has nested. London Bridge has fallen.
ARTHUR:
(Spits out tea) Blimey! Already? I told ‘em that structural support was absolute rubbish! Did it go into the water then?
REGINALD: (Stunned pause) Well... yes. Metaphorically and literally, the spirit has departed the vessel.
ARTHUR: I don't know about spirits and vessels, mate, but I know about gravity. Was there anyone on it when she went?
REGINALD: (Wiping a tear) The entire nation was on it, in a sense. The weight of history.
ARTHUR: (Winces) Ooh, nasty. That’ll be a lot of claims, then. I told the Council the rivets were more rust than metal. I suppose you’ll be wanting us to fish the bits out?
REGINALD: (Confused) Fish the bits out? We are currently preparing the lying-in-state! The procession must be immaculate!
ARTHUR: Lying in state? You can’t leave it in the middle of the river, it’s a shipping hazard! And don't bother with a procession, you'll need a crane. A bloody big one.
REGINALD: (Offended) A crane? For the Monarch?! We shall use a gun carriage, pulled by one hundred and forty-two Royal Naval sailors!
ARTHUR: (Long silence) ...Right. I mean, it’s your budget, guv. Bit disrespectful to the sailors, though, innit? Dragging a pile of wet rubble through the streets of Westminster?
REGINALD: Rubble?! How dare you! This is the very foundation of our constitutional identity!
ARTHUR: Look, I liked the bridge too, it had a nice Victorian charm, but at the end of the day, it’s just stone and mortar, isn't it? We can have a new one up by Tuesday.
REGINALD: (Gasping) A... a new one? By Tuesday?
ARTHUR: Yeah. We’ve got a prefab one in the warehouse. It’s concrete, mind you. Doesn't have the "heritage" look, but it won't fall down just because a heavy bus drives over its nose.
REGINALD: (Incoherent with rage) Her Majesty... does not have... a concrete nose!
ARTHUR: Well, not anymore she doesn't! She's at the bottom of the Thames getting nibbled by eels! Now, do you want the quote for the salvage or am I wasting my tea break?
REGINALD: (Staring at the phone in horror) I... I believe I have the wrong number.
ARTHUR: And I believe you’ve got a very weird way of describing a civil engineering disaster. Cheers.
[SCENE END]
 
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  • #6,876
T.I.L. Fireball over Europe March 8th

 
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  • #6,877
I'm almost done reading the The Emperor of All Maladies: A Biography of Cancer by Siddhartha Mukherjee, an Indian-born American physician and oncologist which won the Pulitzer Prize for General Nonfiction. It's from 2011, so not exactly new, but apart from being pretty depressing, and even somewhat heavy although written for the layman, I learned a remarkable fact:

"During WWII Penicillin was completely used up so it was necessary to synthesize the drug from the urine of patients who had been treated with it."

Recycling Penicillin from Urine in Post-War Germany.

An incredible (and rather gross) thought.
 
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  • #6,878
sbrothy said:
"During WWII Penicillin was completely used up so it was necessary to synthesize the drug from the urine of patients who had been treated with it."

Recycling Penicillin from Urine in Post-War Germany.

An incredibly (and rather gross) thought.
Why the hell not use other natural sources or methods, such as what lead to finding Penicillin initially?
 
  • #6,879
Yes we have several types now but perhaps antibiotics was in it's infancy back then. I don't really know. I just thought it a remarkable fact.
 
  • #6,880
and that's not even gross compared to how insulin was produced to start with!
 
  • #6,881
Or Growth Hormone extracted from what I envisage as blended human cadaverous pituitary glands.

Neither nature nor medicine is pretty.
 
  • #6,882
sbrothy said:
"During WWII Penicillin was completely used up so it was necessary to synthesize the drug from the urine of patients who had been treated with it."

Recycling Penicillin from Urine in Post-War Germany.

An incredibly (and rather gross) thought.
That's pretty clever. A good use of recycling!
symbolipoint said:
Why the hell not use other natural sources or methods, such as what lead to finding Penicillin initially?
Penicillin was discovered in 1928 by the Scottish physician Alexander Fleming as a crude extract of P. rubens.<a href="https://en.wikipedia.org/wiki/Penicillin#cite_note-:02-6"><span>[</span>6<span>]</span></a> Fleming's student Cecil George Paine was the first to successfully use penicillin to treat eye infection (neonatal conjunctivitis) in 1930. The purified compound (penicillin F) was isolated in 1940 by a research team led by Howard Florey and Ernst Boris Chain at the University of Oxford. Fleming first used the purified penicillin to treat streptococcal meningitis in 1942.<a href="https://en.wikipedia.org/wiki/Penicillin#cite_note-Fleming_1943_434–438-7"><span>[</span>7<span>]</span></a> The 1945 Nobel Prize in Physiology or Medicine was shared by Chain, Fleming and Florey.
Penicillin was the first antibiotic. It was isolated from the fungi that made it (probably as a defense mechanism against bacteria). It took a while for it to be synthesized chemically.
It become widely used in WW2.
 
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  • #6,883
Indeed. But as always with a good thing it's overused. I seem to remember we now pump pigs full of it to keep them disease-free risking resistance in humans (Especially here in Denmark as it's one of our #1 exports. Bacon and butter.). But as you say we have lots of other types. No problem. *cough*
 
  • #6,884
sbrothy said:
Indeed. But as always with a good thing it's overused. I seem to remember we now pump pigs full of it to keep them disease-free risking resistance in humans (Especially here in Denmark as it's one of our #1 exports. Bacon and butter.). But as you say we have lots of other types. No problem. *cough*
Wasn't it you, @Astronuc, talking about whether we were ready for Sars-Cov-3? Well, we'll see about that....

EDIT: And to take the fun out of it I just got out of a scrape with death due to a combination of COPD and flu.

EDIT2: To make it even more "funny" the doctor told me before I was admitted that the respirator wasn't gonna see use. Hardcore message.
 
  • #6,885
sbrothy said:
Or Growth Hormone extracted from what I envisage as blended human cadaverous pituitary glands.
It would be hard to get enough human pituitary glands. There are many purification steps with lots of losses at each step. Many of first isolated hormones were purified from staring material from slaughter houses. Parts (of slaughtered animals, like the pituitary gland (bottom of the brain) were not so in demand as food, but were available in very large quantities. Sufficient starting material is often an important factor in these procedures. I think of these as requiring biochemical quantities (like grams) as opposed to molecular biological quantities which can be very small (like milligrams).
 
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  • #6,886
Yeah, well they didn't start with humans. They started with cows and pigs as I remember. Tons of them.
 
  • #6,887
sbrothy said:
Wasn't it you, @Astronuc, talking about whether we were ready for Sars-Cov-3? Well, we'll see about that....

EDIT: And to take the fun out of it I just got out of a scrape with death due to a combination of COPD and flu.

EDIT2: To make it even more "funny" the doctor told me before I was admitted that the respirator wasn't gonna see use. Hardcore message.
Oh, I meant "Life Support". Language ef-up. That's what we call it here. "On respirator" = "On Life-Support".

EDIT: Oh there: "artificial respiration".
 

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