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.

  • #4,411
sbrothy said:
Today I learned that turtles can breathe using their butt.
Their bad breath must be... indescribable. (And I thought my high school math teacher smelled bad...)

But this just keeps getting better and better...

Wikipedia said:
(Other animals...)
[...] At night, many of these species emerge from the anus of the sea cucumber in search of food.
Afaik(?), writers of horror movies have never yet thought of that one... :oldruck:
 
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Physics news on Phys.org
  • #4,412
strangerep said:
Their bad breath must be... indescribable. (And I thought my high school math teacher smelled bad...)

But this just keeps getting better and better...

Afaik(?), writers of horror movies have never yet thought of that one... :oldruck:
Yeah, nature is downright horrific.
 
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  • #4,414
TIL there is now a Journal of Beatles Studies (note the spelling is musical not biological)
Screen Shot 2022-05-20 at 11.31.46 AM.png


Liverpool University Press is delighted to announce the launch of a brand new open access journal, The Journal of Beatles Studies. Co-edited by Holly Tessler (University of Liverpool) and Paul Long (Monash University) the journal will be published twice a year, with the inaugural issue being in September 2022. The journal is sponsored by the University of Liverpool library.

But don't forget the biological beetles, because as John B. S. Haldane said:
If one could conclude as to the nature of the Creator from a study of creation, it would appear that God has an inordinate fondness for stars and beetles.
Now that I think about it, the Beatles were also stars!
 
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  • #4,415
TIL:
A microchip implanted in German Aldana Zuniga's brain allowed the paraplegic man to drive a race car more than 9 years after he lost the use of his legs in an auto accident.
Screen Shot 2022-05-21 at 7.31.52 AM.png


Video here.
 
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  • #4,416
TIL I learned about the new definition of the kilogram using Plank's constant.

 
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  • #4,417
TIL that it is Sherlock Holmes Day, which is celebrated on Sir Arthur Conan Doyle’s birthday, May 22.

Screen Shot 2022-05-22 at 9.35.40 AM.png

Elementary, my dear Watson.
 
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  • #4,418
Three days until Towel Day.
 
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  • #4,420
BillTre said:
TIL that it is Sherlock Holmes Day, which is celebrated on Sir Arthur Conan Doyle’s birthday, May 22.
Logically it should be a half-day, the afternoon of 22 January...
 
  • #4,421
fresh_42 said:
Three days until Towel Day.
And,... (TIL)... that Towel Day is in honour of Douglas Adams and (as a consequence) I also learned that Douglas Adams wrote/edited a number of Dr Who episodes.
 
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  • #4,422

. . . that even highly educated people make big money mistakes in crypto.
 
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  • #4,423
kyphysics said:

. . . that even highly educated people make big money mistakes in crypto.

I observed that greed is independent of the education level. Only the traits change.
 
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  • #4,424
fresh_42 said:
I observed that greed is independent of the education level. Only the traits change.
That is a horrible story. He worked his life, paid his taxes and got bad advice. Or advice that seemed good at the time.
I want people like that to get a break, hard honest workers.
Probably get some decent financial advice first.
I hate those stories.
 
  • #4,425
The online investing course that he got his advice from was probably created by the very same people who were selling the crypto. :rolleyes:
 
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  • #4,426
Borg said:
The online investing course that he got his advice from was probably created by the very same people who were selling the crypto.
Possibly. A tough lesson though.
House, wife, kids. Then nothing, all equity gone and owing when he should have been thinking about his kids support at Uni.
 
  • #4,427
I would be curious to know what he actually learned from his lesson though. I knew someone who got burned in the 2000 tech crash when his leveraged investments automatically sold one day because the price of one of his stocks spike dropped in the morning below the leverage threshold limit. That triggered a sale at the low price that only lasted a minute or so. And, since he was so heavily leveraged, it triggered the sale of other stocks in his portfolio as well. He ended up losing a good fraction of his money as a result.

I met him a year after it happened and he was blaming the brokerage for selling his stocks - thinking that they should have taken on all of his risks when the prices crashed. I tried to explain to him that even if they wanted to protect him that way, they wouldn't know if the price would recover and by the terms of the contract when he leveraged his money that way, it was a serious possibility that he should have considered. It was like talking to a brick wall.
 
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  • #4,428
Borg said:
It was like talking to a brick wall.
Yeah, some people are like that, even when they are buried under the bricks!

Seems to go with a feeling of 'entitlement.'
 
  • #4,429
fresh_42 said:
I observed that greed is independent of the education level. Only the traits change.
Maybe naivete too?

Plenty of get-rich-quick thinkers flock to crypto and meme stocks for sure. But, I suspect there is a big segment of just very naive (maybe combined with greed too) people too, who may not fully understand how the thing is valued the way it is and is just being told by people they "trust" that it will "go up" in value (a lot).

One takeaway is to never invest in something you don't understand. No matter how tempting it sounds and no matter the upside, don't do it (or, at the very, very least, only put a small % of your $ into it so as to not go broke...or even come close to going broke). I've had to learn to not be envious of people getting rich off crypto, because I have to realize so many also go broke. Lots of people watch Tik Tok or YouTube videos of some random person on the net saying how they made so much money in x/y/z financial instrument and think it's so easy that they can do it too.

Look CAREFULLY into something...and if you don't understand it, DON'T do it. And don't feel bad if you miss out. Feel good that you didn't do something potentially really dumb.
 
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  • #4,430
Hi @BillTre
But don't forget the biological beetles, because as John B. S. Haldane said:

If one could conclude as to the nature of the Creator from a study of creation, it would appear that God has an inordinate fondness for stars and beetles.
I'm familiar with Haldane's quote from reading Stephen Gould's books, but the addition of "stars" was unfamiliar to me. Looking into it, I came across this article https://quoteinvestigator.com/2010/06/23/beetles/#f+734+1+5 that seems to explain the inclusion of "stars" in the quote. An interesting combination of his famous quote and a statement from his book, "what is life". Definitely a TIL day. 🪲
 
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  • #4,431
TIL... something quite surprising (at least for me).

Apparently Tasmania was once part of the Grand Canyon. :bugeye:
 
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  • #4,432
It was not quite today but TIL we have an extra holiday in the UK. Today. Queens Platinum Jubilee.
 
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  • #4,433
TIL that a double bass drum pedal is either right or left footed. The attachment for the second foot, in my case the right, only fits on the left.
You have to get left use one and they cost more apparently.
Louis Belson has a lot to answer for.
 
  • #4,434
TIL You cannot quote someone if the thread is closed. Why should I want to quote if the thread is closed? If the thread is closed with a line that belongs in the 'Great one liners from pf members.'

Screen grab is a pain on my tablet.
 
  • #4,435
I think you can do that by editing the BB code.
Let's see.
pinball1970 said:
I looked for big guns and I found one.
 
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  • #4,436
Rive said:
I think you can do that by editing the BB code.
Let's see.
Where is that? Bear in mind I have a Hudl
 
  • #4,437
pinball1970 said:
Where is that? Bear in mind I have a Hudl
I don't know what Hudl is :doh:
1654165424901.png

You can toggle to BB code edit by those brackets. Then just fill up the details and edit the text. The post ID can be extracted from the 'Share this post' button:
1654165538693.png
 
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  • #4,438
pinball1970 said:
It was not quite today but TIL we have an extra holiday in the UK. Today. Queens Platinum Jubilee.
For every Brit she has been there since as long as we can remember, as long as we could be aware of any such thing.

She has known 12 Presidents of the US from Truman on, 4 Popes and countless heads of government, including 14 Prime Ministers of her own with whom she has almost weekly conversation, by no means trivial (though with no real powers over them).https://www.businessinsider.com/que...idge-visited-a-school-together-in-cornwall-21
 
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  • #4,439
TIL, this, Archaeological find highlights 1700 year old version of a social media post.
https://www.chroniclelive.co.uk/new...de-graffiti-uncovered-northumberland-24079155

"Described as a 'fabulous' bit of social commentary, it is expected to amuse visitors for many years to come. According to the team at Vindolanda, carving such a message would have been one of the best ways to get a lot of people noticing a point of view, centuries before printed papers or social media existed."

Not only was there a drawing, but the 40 x 15cm stone is also engraved with SECVNDINVS CACOR, making the graffiti a very personal insult. Specialists in Roman epigraphy, Drs Alexander Meyer, Alex Mullen and Roger Tomlin, recognised it as a mangled version of 'Secundinus cactor' or in English, 'Secudinus, the sh**ter."
 
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  • #4,440
Today I didn't exactly learn a lesson as much a I got a prejudice confirmed, kind of. I meet a lot of people who talk to their dogs as they would to children. No harm in that, except they often claim that the dog understands them(?). Still, no big deal. More than a few times though I've met girls (for some reason it seems to be mostly girls) who claim that their dog "doesn't like men", or "doesn't like people of color"(?!).

This leaves me completely baffled! Is your dog a racist?! The explanation must be that the owner feels unsafe around men or people of color and the dog picks up on that. Trying to clear up these misunderstandings is like navigating a minefield though. I mean how do you politely explain to a girl that maybe she's the one with the issues, not her dog. Or worse: that maybe she's a closeted misandrist and/or racist?

People are weird.
 

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