Today I Learned

  • Thread starter Thread starter Greg Bernhardt
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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.

  • #4,291
If the doggie is not fixed already, that could be a problem with violation of his vows. Sorry doggy...
 
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Physics news on Phys.org
  • #4,292
This number has not changed for any European country in over 300 years

population-per-capita.jpg
 
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  • #4,293
Today I learned that cashless ATMs are a thing. Instead of cash, they dispense pot, using a loophole to get around restrictions that are intended to prevent people from using debit or credit cards to buy pot via a retail point-of-sale terminal. The ATMs code the transaction as a cash withdrawal, instead of a purchase.

Visa cracks down on cashless ATMs at cannabis dispensaries (MarketWatch)
 
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  • #4,294
BWV said:
This number has not changed for any European country in over 300 years

View attachment 299273
What happened 300 years ago? Divide by zero somewhere is the only thing I can think of, but the implications of that are pretty horrible...
 
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  • #4,295
Ibix said:
What happened 300 years ago? Divide by zero somewhere is the only thing I can think of, but the implications of that are pretty horrible...
Depending on how you count population and people, you might get numbers different from one in the US before the Civil War. Prior to that slaves were only counted as 3/5 of a non-slave, in the official census anyway.
 
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  • #4,296
BillTre said:
Depending on how you count population and people, you might get numbers different from one in the US before the Civil War. Prior to that slaves were only counted as 3/5 of a non-slave, in the official census anyway.
The legendary two headed man. One half person per capita.
 
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  • #4,298
jbriggs444 said:
The legendary two headed man. One half person per capita.
Goes well with the 2.5 kids every american should have.
 
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  • #4,300
Oldman too said:
Once again, it gives me pause (for thought) that we have such a stunning theory of QED, yet still find significantly frustrating issues in galactic/cosmological dynamics. :oldfrown:
 
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  • #4,301
TIL Telluric currents exist, can be used as an energy source and to map subsurface Earth. Thanks @Baluncore .

I knew Tellus is Latin for Earth and that we ground EM circuits and send and receive VLF and ELF signals through the Earth. I was taught or I assumed that the many references in old books to geomantic or telluric currents talked about some spiritual or supernatural essence or described the Earth's geomagnetic field.

Fra Junipero Serra mentioned telluric currents guiding his mission site planning in California but I assumed he meant compass readings. I need to rethink the meaning of many old manuscripts I read years ago though I no longer have access to those libraries and no longer understand much Latin and Spanish due to age. Live and learn something new each day.
 
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  • #4,302
Klystron said:
Live and learn something new each day.
That's it.
 
  • #4,303
TIL that, for large areas of the Antarctic, the bedrock on which the ice rests is in fact below sea level.
 
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  • #4,305
TIL that I'm not the only one who misreads words (didn't really think I was, but this confirms it)
Klystron said:
TIL the title of the PF science fiction subforum is "Writing and Worldbuilding". I read the title as "Word Building"

fresh_42 said:
I still read it as Word building.

My problem is that every time I see the word "lawmakers" I read it as "lawn makers" in the split second before my brain recovers and thinks "crap ... did it again!"
 
  • #4,306
phinds said:
My problem is that every time I see the word "lawmakers" I read it as "lawn makers" in the split second before my brain recovers and thinks "crap ... did it again!"
That's understandable. Both of them involve the use of a lot of fertilizer. :oldwink:
 
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  • #4,307
TIL that a toddlers adult teeth are right bellow their eyes, I can't get that image out of my mind:headbang:
 
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  • #4,309
Today I learned about the Crayola Experience.

Discover the magic of color with a day of hands-on family fun!

What's next, Play-Doh Park?
 
  • #4,310
TIL a few things:
A 2013 sniper attack on an electric power substation in Northern California, which caused more than $15 million in damages and destroyed 17 transformers, led Idaho National Laboratory researchers to develop a novel protective solution.
:oops:o_O
Currently, the U.S. imports about 85% of its high-voltage transformers from other countries. These large, custom-built devices cost $2.5 million to $10 million dollars each. With limited supplies, expensive raw materials and fabrication times of more than a year, the loss of a single piece of equipment could prevent reliable power from being delivered, creating a risk to national security, economic stability and public health.
o_O
https://inl.gov/article/armor-techn...-the-power-grid-licensed-by-michigan-company/
 
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  • #4,311
poor dental hygiene can lead to acne

I had 3 - yup 3 - cavities and was recently breaking out in my face. After getting a cleaning and the cavities filled, I'm noticing a cleared up complexion.

The bad bacteria all encrusted/living/multiplying in your mouth from bad dental hygiene can get into your skin tissue as well and lead to breakouts/acne.

My date will thank me for this. Note to self: get dental cleanings more often. This was my first time back since COVID (i.e., it was 2 years since a cleaning).
 
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  • #4,312

The Watermelon War​


 
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  • #4,314
There's a meme for that;

Screen Shot 2022-04-14 at 11.38.14 AM.png
 
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  • #4,315
Russia has about 11 million people with relatives in Ukraine. Can't wait until letters start showing up in Russia posted with these stamps.
 
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  • #4,316
Borg said:
Can't wait until letters start showing up in Russia posted with these stamps.
Well, thinking about more collectibles, are you? o_O
 
  • #4,317
Rive said:
Well, thinking about more collectibles, are you? o_O
Wow, those are expensive. I scrolled down and finally found one for $10 only to discover that shipping was an additional $170. :oldeyes:
 
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  • #4,318
TIL that in Trading Places, Louis Winthorpe’s (Dan Aykroyd) prison number is the same as Jake Blues’ (John Belushi) prison number in The Blues Brothers as a tribute to Belushi, who had died the year before.

prison.jpg
 
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  • #4,319
Reading 1493, the excellent book on the Columbian Exchange. Natural rubber remains critical for medical and industrial applications. While native to Amazonia, commercial production of rubber trees in the Americas stopped in the 1930s due to a native fungus. Asia today produces most of the world's Rubber in a monoculture that is very susceptible to the blight - a few spores from Brazil crossing the Pacific could lead to a global economic disaster
 
  • #4,320
BWV said:
Reading 1493, the excellent book on the Columbian Exchange. Natural rubber remains critical for medical and industrial applications. While native to Amazonia, commercial production of rubber trees in the Americas stopped in the 1930s due to a native fungus. Asia today produces most of the world's Rubber in a monoculture that is very susceptible to the blight - a few spores from Brazil crossing the Pacific could lead to a global economic disaster
Blight killed all the banana trees in the Americas in 1900 or so. They recovered by importing bananas from the Cavendish hothouse in the UK. Yep, the same gravitational constant Cavendish family. They are "dwarf bananas" because the tree is smaller even though Cavendish bananas are giant.

Cavendish are my fave bananas even though they don't have much flavor. I don't like the taste of the original bananas, so bland is better.
 
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