Today I Learned

  • Thread starter Thread starter Greg Bernhardt
  • Start date Start date
Click For Summary

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.

  • #4,351
TIL that there are at least eight levels of minor league baseball.
 
  • Informative
Likes   Reactions: Oldman too
Physics news on Phys.org
  • #4,354
TIL the trebuchet was invented in China circa the 4th century B.C. .
 
  • #4,355
During the last several days I have been learning the Lebesgue integration theory for functions with values in a Banach space by S.Lang's "Real Analysis". The narration is pretty nice and clear.
Since the construction is very general it does not rely on accidental things like an order in the space of values. This straightens the structure.
 
Last edited:
  • Like
Likes   Reactions: dextercioby
  • #4,356
wrobel said:
During the last several days I have been learning the Lebesgue integration theory for functions with values in a Banach space by S.Lang's "Real Analysis". The narration is pretty nice and clear.
Since the construction is very general it does not rely on accidental things like an order in the space of values. This straightens the structure.
Is your picture Von Neumann?
 
  • #4,357
pinball1970 said:
Is your picture Von Neumann?
C. S. Lewis
 
  • Like
  • Love
Likes   Reactions: Oldman too, Maarten Havinga and pinball1970
  • #4,358
  • Informative
Likes   Reactions: DaveC426913 and pinball1970
  • #4,359
Oldman too said:
I will read all those links. No passwords? That seems crazy!
 
  • Like
Likes   Reactions: Oldman too
  • #4,360
pinball1970 said:
I will read all those links. No passwords? That seems crazy!
They authenticate using your phone. We do this at the hospital.
 
  • Informative
  • Like
Likes   Reactions: Oldman too and pinball1970
  • #4,361
DaveC426913 said:
They authenticate using your phone. We do this at the hospital.
Not keen though Dave.
 
Last edited:
  • #4,362
DaveC426913 said:
They authenticate using your phone. We do this at the hospital.
Same with most banks.
 
  • #4,363
pinball1970 said:
I will read all those links. No passwords? That seems crazy!
Sounds risky on first look, the links explain it pretty well though. The hackers are already at a work around for this unless I miss my guess. Still it is an improvement over the current system, we'll see soon enough.
 
  • Informative
Likes   Reactions: pinball1970
  • #4,364
pinball1970 said:
Not keen though Dave.
? You mean you don't like it?

I have hundreds of passwords. If I haven't been back to somewhere in over six months I have to reset it.

Oldman too said:
Same with most banks.
Not mine yet.

I confess, I did not like it at first - having to have a second device handy. But now I always have my phone, so it's not such a hardship.
 
  • Like
Likes   Reactions: pinball1970
  • #4,365
TIL there are ##\LaTeX## coffee stains!
1651804041136.png

1651804014568.png
 
  • Like
  • Haha
Likes   Reactions: Oldman too, pinball1970, jack action and 1 other person
  • #4,366
DaveC426913 said:
Not mine yet.
Sorry, I should have specified, that only applies to bank employees. My granddaughter works in a bank and it's their default authentication for all employees. Seems to work great for them. There seems to be a fallback recovery method should you lose your phone.

DaveC426913 said:
I confess, I did not like it at first - having to have a second device handy. But now I always have my phone, so it's not such a hardship.
I'm not even using it yet personally but I'm rarely without the phone handy, I'll be glad to get rid of password authentication.
 
  • Like
Likes   Reactions: pinball1970 and DaveC426913
  • #4,367
wrobel said:
C. S. Lewis
1651836019646.png


Definitely some likeness
 
  • #4,368
TIL

CS Lewis was actually Irish and had a hatred of the English for a while after coming to England.
He was an atheist and interested in mysticism before converting to Christianity.

John Von Neuman was a very impressive individual! Too much to mention but one thing I noticed reading his wiki page was he had a guard over him while he was dying at a military medical centre.

He was medicated and military was worried about him talking about US secrets as he passed.
 
  • Informative
Likes   Reactions: Oldman too
  • #4,369
Supposedly, the only question Hilbert asked Von Neumann at his Ph.D. defense was

"In all my years I have never seen such beautiful evening clothes: pray, who is the candidate's tailor”​

 
  • Like
Likes   Reactions: pinball1970
  • #4,370
pinball1970 said:
John Von Neuman was a very impressive individual! Too much to mention but one thing I noticed reading his wiki page was he had a guard over him while he was dying at a military medical centre.

He was medicated and military was worried about him talking about US secrets as he passed.
I can not explain that but I feel something not good to pass in such a way.
 
  • Sad
Likes   Reactions: pinball1970
  • #4,371
His was an ugly death. Some sort of cancer and he knew that his mind was not functioning well.
 
  • Sad
  • Informative
Likes   Reactions: Oldman too and pinball1970
  • #4,372
pinball1970 said:
CS Lewis was an atheist and interested in mysticism before converting to Christianity.

My favorite book is his last, Til We Have Faces. It's pagan, and about the the meaning of life.
 
  • Like
  • Informative
Likes   Reactions: Oldman too and pinball1970
  • #4,373
caz said:
His was an ugly death. Some sort of cancer and he knew that his mind was not functioning well.
He would have been on morphine I would guess. Anyway the list of contributions he made was something else.
Focus on the positives.
 
  • Like
Likes   Reactions: Klystron
  • #4,374
Hornbein said:
My favorite book is his last, Til We Have Faces. It's pagan, and about the the meaning of life.
Not read that only the Narnia books.
 
  • #4,375
Now I have to go find my copies of Perelandra and ... I read in high school and I remember them as almost terrifying, but I'm not sure now why.
 
  • #4,376
DaveC426913 said:
? You mean you don't like it?

I have hundreds of passwords. If I haven't been back to somewhere in over six months I have to reset it.Not mine yet.

I confess, I did not like it at first - having to have a second device handy. But now I always have my phone, so it's not such a hardship.
My system is now part of it! It's just another thing, another layer. I cannot authenticate without my phone. Great!
Solution is simple, make sure you always have your phone available, charged and ready to give up the authentication code.
Just like your car? You need to get to work so just have the car there ready and waiting, it's not as if anything could go wrong between house and work is it?
Thing is the car goes rogue you get a cab to the tram / railway station.
 
  • Like
Likes   Reactions: Oldman too
  • #4,377
pinball1970 said:
My system is now part of it! It's just another thing, another layer. I cannot authenticate without my phone. Great!
Solution is simple, make sure you always have your phone available, charged and ready to give up the authentication code.
Just like your car? You need to get to work so just have the car there ready and waiting, it's not as if anything could go wrong between house and work is it?
Thing is the car goes rogue you get a cab to the tram / railway station.
There's no doubt it's not ideal. But we don't have ideal yet.

The question is: overall, is it better than juggling two hundred hackable passwords?
 
  • Like
Likes   Reactions: pinball1970 and Oldman too
  • #4,378
Oldman too said:
going passwordless
I haven't seen this yet. I do have accounts where I type my password in, then it asks me to give the code they send to my phone. That seems like a good idea; someone breaking into my account needs to know the password and have my phone. For things like bank accounts, social security, medicare... I really do not mind, in fact, I like the added security.
 
  • Like
Likes   Reactions: pinball1970 and Oldman too
  • #4,379
DaveC426913 said:
There's no doubt it's not ideal. But we don't have ideal yet.

The question is: overall, is it better than juggling two hundred hackable passwords?
Yes Dave but I am not keen. Next it will be a link sent to a different e mail account which I verify via a 7 digit number sent to my phone. Once verified I go through some security steps and I have access to the security platform. This requires a 13 character code with upper lower case number and something else, *. At last now I get clearance to complete the on line profile of 6 step process which verifies my identity with respect to all the stuff I just did. The next step confused me so I was timed out. I need another code but need a different e mail account as the first has now been designated, 'not secure'

IT explained that if I get an authentication code on my phone on a Sunday or three in the morning then it's not from me.
Thank heavens for these people. They hack for fun then get paid to teach companies how to avoid it.
 
  • Informative
Likes   Reactions: Oldman too

Similar threads

Replies
26
Views
6K
  • · Replies 161 ·
6
Replies
161
Views
15K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 27 ·
Replies
27
Views
6K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 5 ·
Replies
5
Views
4K