Today I Learned

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Today I learned that cleaning a white hat can be done with bleach cleaner, but it’s important to rinse it before wearing it again. I also discovered that "oyster veneering," a woodworking technique from the late 1600s, is experiencing a minor revival despite its labor-intensive nature. Additionally, I learned that the factorial of 23 (23!) equals 25,852,016,738,884,976,640,000, which interestingly has 23 digits, a unique coincidence among factorials. I found out that medical specialists often spend less than 10 minutes with patients, and that watching TV can contribute to weight gain. Other insights included the fact that a kiss can transfer around 80 million microbes, and that bureaucracy can sometimes hinder employment opportunities. The discussion also touched on various trivia, such as the emotional sensitivity of barn owls and the complexities of gravitational lensing around black holes.
  • #1,901
1oldman2 said:
T.I.L. that my wife won't let me choose next years Christmas tree, this year I chose a Tamarack. :frown:
Yep, happens without definitions ... I suppose to offer the usage of PF's homework template wouldn't be a good idea either.
Yesterday I've read: "My wife is like the bible. Whether translation and interpretation is correct cannot always be said. But her word is law."
 
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  • #1,902
fresh_42 said:
"My wife is like the bible. Whether translation and interpretation is correct cannot always be said. But her word is law."

Lots of wisdom in that. It's not important who decides little things, only that nobody feels trod upon. It's healthy to indulge a good partner.

I get a lot of mileage out of "That's a Big Ten-YesDear , Good Buddy" .
 
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  • #1,903
jim hardy said:
I get a lot of mileage out of "That's a Big Ten-YesDear , Good Buddy" .
It's the little things like that that have such a huge bearing on a relationship, the divorce rate would be cut by half if people only grasped that concept before planning on spending the rest of their lives together. My wife says marriage is like a job, you go to work each day and give it your best and there's no need to worry about getting canned. (this isn't something I "learned today" but it's worth mentioning in this thread if only one couple gets the gist of it)
:wink:
 
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  • #1,904
Today I learned that it's not a good idea to step onto a sloping footpath which is covered in black ice. I landed heavily on my chest and chin (which luckily was partly protected from scraping by my beard).

Fortunately, the footpath in question was in a hospital car park (as I was departing towards my wife's car after an appointment for physiotherapy on a sore shoulder), and when I staggered into reception they immediately rushed into action ... to lay grit on the paths.

They were actually quite helpful and sympathetic, and once I'd recovered from the immediate shock and being winded they had a doctor check me out. Just some superficial grazes on the outside, and no sign of broken bones, although my chest is very uncomfortable, especially when I laugh or hiccup, and I'm having to eat very slowly because of jaw ache.
 
  • #1,905
Jonathan Scott said:
... Fortunately, the footpath in question was in a hospital car park (as I was departing towards my wife's car after an appointment for physiotherapy on a sore shoulder), and when I staggered into reception they immediately rushed into action ... to lay grit on the paths. ...
Unfortunately for you this happened in the wrong country ... :wink:
My best wishes!
 
  • #1,906
Jonathan Scott said:
Today I learned that it's not a good idea to step onto a sloping footpath which is covered in black ice. I landed heavily on my chest and chin (which luckily was partly protected from scraping by my beard).

Today I learned that beards make decent face armor.
 
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  • #1,907
Jonathan Scott said:
when I staggered into reception they immediately rushed into action ... to lay grit on the paths.
In the US this action would have been accomplished by simultaneously contacting the hospitals legal dept. and going into "damage control" mode. Here it's customary to sue first, details later. I assume that like myself, these adventures aren't as much "fun" for you as they were when you were twenty, hope your feeling better soon.
 
  • #1,908
dkotschessaa said:
Today I learned that beards make decent face armor.
This is true as most people wearing a beard will attest, (although most armor isn't nearly so flammable :wink:)
 
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  • #1,909
1oldman2 said:
This is true as most people wearing a beard will arrest...
Hmmm, no. Law enforcement officers are actually mostly clean shaven.
 
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  • #1,910
zoobyshoe said:
Hmmm, no. Law enforcement officers are actually mostly clean shaven.
Thank you for that correction, spellcheck won't save my butt in a case like this. :sorry:
 
  • #1,911
1oldman2 said:
Thank you for that correction, spellcheck won't save my butt in a case like this. :sorry:

Can't slip anything past the Zoob.
 
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  • #1,912
:)

Today I learn Java and Algoritmic toolbox in Coursera.

Anybody learn Russian language?
 
  • #1,913
levadny said:
Anybody learn Russian language?
Not me, but my cousin is quite fluent. (Compliments of the USAF)
 
  • #1,914
levadny said:
:)

Today I learn Java and Algoritmic toolbox in Coursera.

Anybody learn Russian language?

I study Russian when I have time, which is not often. I want to learn to read scientific Russian so I can understand Priroda and other journals.
 
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  • #1,915
Today I learned that the world's largest recorded iceberg, Iceberg B-15, was as large as the state of Connecticut.
 
  • #1,916
I can help to learn Russian in Skype for example. One time in week. Twenty or more minutes. Russian instead of English or other language if you want.
Please write if this property interests you.
 
  • #1,917
So as part of Project Supernerd (i.e. raising my son) I have been compiling some playlists for my 11 month old, including this one of classical music written for children. (Some of them are actually songs that his bedside crib machine thingy was playing, so I put those on the list).

Anyway, included in this is Mozart's 12 variations of Twinkle, Twinkle, Little Star.

It is a running joke that my wife refuses to acknowledge the fact that this is the same melody used as the alphabet song (in English anyway), a fact which took me over 30 years to even realize.

But now I realize that my ignorance is even greater! The song is actually "Ah! vous dirai-je, maman," (translating apparently to "Oh! Shall I tell you, Mommy") a French children's song.

Thus when we sing the alphabet song we are not simply using "Twinkle" as a mnemonic device but a much older melody which is also used in "Baa, baa, Black Sheep" and "https://en.wikipedia.org/w/index.php?title=Morgen_kommt_der_Weihnachtsmann&action=edit&redlink=1 " (German for "Santa Claus is coming tomorrow")

Mind blown?!

I know this is why you come to physics forums.

-Dave K
 
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  • #1,918
dkotschessaa said:
So as part of Project Supernerd (i.e. raising my son) I have been compiling some playlists for my 11 month old, including this one of classical music written for children...
Wow, Prokofiev, Tchaikovsky, Chopin ... you give it to him the hard way, don't you? At least you stayed away from Wagner ... And Frère Jacques could be nice to add.
 
  • #1,919
fresh_42 said:
Wow, Prokofiev, Tchaikovsky, Chopin ... you give it to him the hard way, don't you?

ha. When you put it that way it sounds bad, but they are pieces written (supposedly) for children.

He gets the easy kids stuff to, also plenty of rock music and Spanish music (Salsa especially) and I occasionally subject him to jazz.

At least you stayed away from Wagner ...

I actually really like Parsifal but I won't subject him to it against his will. At least not yet...

And Frère Jacques could be nice to add.

I've generally regarded this as a nursery rhyme, but according to Wikipedia "Frère Jacques bears resemblance to the piece Toccate d'intavolatura, No.14, Capriccio Fra Jacopino sopra L'Aria Di Ruggiero composed by Girolamo Frescobaldi,[15] " So I might look that up.

We sing it to him in a couple of variations. I sometimes sing it in English as "brother john" and sometimes I try it in (probably very bad) French.

My wife does a little finger game "Where is pointer? Where is Pointer? Here I am! Here I am!" to the melody.

Needless to say I am learning a lot from my son, though it's not the kind of stuff I realized I'd be learning at this age.

-Dave K
 
  • #1,920
dkotschessaa said:
Thus when we sing the alphabet song we are not simply using "Twinkle" as a mnemonic device but a much older melody which is also used in "Baa, baa, Black Sheep" and "https://en.wikipedia.org/w/index.php?title=Morgen_kommt_der_Weihnachtsmann&action=edit&redlink=1 " (German for "Santa Claus is coming tomorrow")
-Dave K
There were at least two previous melodies used for Twinkle Twinkle Little Star before it mostly migrated to the current one.
One of them is shown in the Wikipedia article: https://en.wikipedia.org/wiki/Twinkle,_Twinkle,_Little_Star
I have another one (which I particularly like) in an old song book "What the Children Sing" from 1915, which I used to sing to my own children. I've just found the relevant page online:
http://www.traditionalmusic.co.uk/what-children-sing/what-children-sing - 0142.htm
I also use a different alphabet song which my mother taught me, which avoids the garbled "LMNOP" for the "Twinkle" version, but I can't find it online.
 
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  • #1,921
Jonathan Scott said:
There were at least two previous melodies used for Twinkle Twinkle Little Star before it mostly migrated to the current one.
One of them is shown in the Wikipedia article: https://en.wikipedia.org/wiki/Twinkle,_Twinkle,_Little_Star
I have another one (which I particularly like) in an old song book "What the Children Sing" from 1915, which I used to sing to my own children. I've just found the relevant page online:
http://www.traditionalmusic.co.uk/what-children-sing/what-children-sing - 0142.htm
I also use a different alphabet song which my mother taught me, which avoids the garbled "LMNOP" for the "Twinkle" version, but I can't find it online.

That is so true! Definitely let me know if you come across it. I usually sing "Twinkle" followed by the alphabet song in English, then in Spanish, then rounding back to "Twinkle" again. (This is to get him to sleep, mind you).

Actually, since I'm on PF speaking of "Twinkle," I always thought it would be cool to write scientific lyrics to it. Rather than just wondering what a star is, why not explain it?

Twinkle, Twinkle, Little Star
Sphere of plasma very far
hydrogen, helium, fused in a reaction
held by its own gravitational attraction...

That's a start...

Edit YES! It exists: http://sites.psu.edu/astrowright/2015/06/12/scientifically-accurate-twinkle-twinkle-little-star/
 
  • #1,922
  • #1,923
BillTre said:
Don't forget The Element Song!

Although it needs updating.

Yes... Didn't someone do an updated version?
 
  • #1,924
This reminded me of a great baby song I liked a lot when my first kid was a baby and REFUSED to go to sleep BEFORE MIDNIGHT!

 
  • #1,925
Today I learned a bear can walk upright for a very long time if it needs to:

 
  • #1,926
Cats can do that as well.
I guess many animals can walk on 2 legs for a while if there is a reason to do so.
 
  • #1,927
mfb said:
Cats can do that as well.
I guess many animals can walk on 2 legs for a while if there is a reason to do so.
Yes, the closer we look, the more ground we lose ...
 
  • #1,928
mfb said:
Cats can do that as well.
I looked through some YouTubes and don't find any of cats doing it for more than a few steps. They can stand up on two rear legs, it seems, for quite a while, but not actually walk very far that way. The bear in the video I posted, on the other hand, seemed to have shifted to primarily bipedal locomotion: he could walk very long distances on two legs.
 
  • #1,930
Some dogs can walk on their two front legs.
 
  • #1,931
Today I learned if you put an earthworm in very cold water overnight it will get a lot fatter and wiggle more in warmer water.
 
  • #1,932
Yesterday I learned how to make a balloon sword and a balloon dog. Popular skills when small-to-medium children are around, it turns out...
 
  • #1,933
Electron Spin said:
Today I learned if you put an earthworm in very cold water overnight it will get a lot fatter and wiggle more in warmer water.
I hate to think what the earthworm learned. I'm surprised it survived.
 
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  • #1,934
Electron Spin said:
Today I learned if you put an earthworm in very cold water overnight it will get a lot fatter and wiggle more in warmer water.

:oldfrown:
 
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  • #1,935
Electron Spin said:
Today I learned if you put an earthworm in very cold water overnight it will get a lot fatter and wiggle more in warmer water.
A few days ago, I discovered that bluefin tuna are warm blooded.
Today I found out that it was only a year and a half ago, that the people in charge of classifying such things, decided they'd found the first warm blooded fish.
 
  • #1,936
Today I learned that light beer drinking may help prevent heart disease but may also increase the risk of some types of cancer. Unfortunately, I did not learn if there is an alternative beverage that helps prevent both heart disease and cancer. In addition, with so many weasel words of the form "may do such and such" I did not learn if anyone really knows what they are talking about on this subject.
 
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  • #1,937
Today I learned that Paul McCartney's actual first name is "James," and "Paul," is actually his middle name.
 
  • #1,938
Bill Lear, self taught genius.

The story is prime Bill Lear.

The beefy, bespectacled inventor was in shirt-sleeves, thrashing out a
design problem with one of his Learjet engineers.

The engineer wanted something done one way. Lear wanted it done another.
The argument heated up until a boiling-mad Lear roared: “You put up 50
percent of the money, you make 50 percent of the decisions.”

They did it Bill Lear’s way. Of course.

“He was a bright, energetic, hard-working leader,” says Fran Jabara, a
former paid consultant to Lear and now director of Wichita State University’s
Center for Entrepreneurship.

“To some he was controversial, but to me he was a perfect example of an
entrepreneur. He had many ideas. Some worked, some didn’t,” Jabara said. “He
was always optimistic, sometimes unrealistically so, but most of the time he
was on target. He was fully committed to his projects.”

Bill Lear is best known for designing and building the Learjet – the
world’s first cheap, fast mass-produced business jet – at a factory he started
in Wichita in 1962. The company now is Gates Learjet Corp.

But Lear, who had only an eighth-grade education, also held more than 150
patents. He is credited with inventing the car radio, the eight-track stereo
tape player and cartridges, the autopilot for jet aircraft, the navigational
radio, and the radio direction-finder for general aviation aircraft.


To his admirers, Lear was a creative genius possessed of exceptional
business courage. To his enemies, he was a hot-headed dictator determined to
get his way.

“I found Bill to be very demanding but also a very warm person to work
for,” said Don Grommesh, vice president of research and engineering at Gates
Learjet, who began working for Lear in 1962. “He had a way about him that
caused people to get things done. I think that was one reason for the success
of Learjet.”

John Zimmerman, aviation writer for The Wichita Eagle and the Beacon
during the 1960s and now president of Aviation Data Service Inc. in Wichita,
said people in aviation would “like Bill one minute and hate the ground he
walked on the next......”
http://www.wingsoverkansas.com/profiles/a103/
https://en.wikipedia.org/wiki/Bill_Lear#Tributes_and_honors
http://www.quoteswise.com/william-lear-quotes.html
 
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  • #1,939
Today I learned a lot, because I was not feeling very well, and couldn't get any real work done.

I learned that listening to Heino's cover of Rammstein's Amerika is a very good musical experience. I already loved Heino, but now I'm going to listen to Rammstein too, because they are clearly an awesome band.

This caused me to find out more about Rammstein. For those who are unaware, Ramstein is in Rheinland-Pfalz and is the home of a famous USAF base. I learned that the incorrect spelling of Ramstein is said to be a mistake. The band named themselves after the Ramstein air show disaster of 1988, in which some Italian planes collided.

As I continued my online explorations, I found out that President-Elect Trump's German family is from Kallstadt, also in Rheinland-Pfalz. This is not a surprise, since many of us have ancestors from that region of Germany. It was a major source of immigrants to the USA.

To quote from the song:

"We're all living in Amerika,
Amerika ist Wunderbar.
We're all living in Amerika,
Amerika, Amerika."

Finally, I learned the following motto in Die Muttersprache: "Gileb und gfeirscht wie fria."
 
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  • #1,940
"? und gefeiert (?) wie früher"
? and celebrated as in the past

Google is not very helpful with the dialect.
 
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  • #1,941
Geliebt? (loved) and gefeiert (party)? or gefreit (married)? or gefeilscht (chaffered)? - Schwaben halt ... (Swabians ...)
 
  • #1,942
Gelebt!

Gelebt und gefeiert wie früher
Lived and celebrated as in the past
 
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  • #1,944
BillTre said:
TIL someone made a soft robotic 3D print of a carnivorous plant snap trap.
Engineering marches on!
Oh, my. :woot:

Here's an image of said object:
figure6.gif
 
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  • #1,945
TIL that Pill bugs have gills. [ref]

And, that they taste like dirt filled shrimp. <my interpretation, from the article>

ps. My sister used to eat them like candy, when she was about 1 year old.
 
  • #1,946
OmCheeto said:
TIL that Pill bugs have gills. [ref]

And, that they taste like dirt filled shrimp. <my interpretation, from the article>

ps. My sister used to eat them like candy, when she was about 1 year old.

Nice ref.
They're amphipods (crustacean subgroup).
None of my reptiles or amphibians wanted to eat then. I heard later they are supposed to taste bed as a defense mechanism.
 
  • #1,947
mfb said:
Gelebt!

Gelebt und gefeiert wie früher
Lived and celebrated as in the past

Because I have done many tests on Google translate, I'm not surprised it can't handle dialects. It's even more amusing to do a "translation cycle." I've done many such tests, such as English->German->Chinese->Swahili->Hungarian->Arabic->English.

The motto is from a town festival in Pfalzen, which is in the South Tirol, not to be confused with Pfalz as in Rheinland-Pfalz. You can find a nice video of the festival by searching Youtube for Pfalzner Dorffest 2012. Politically speaking, Pfalzen is part of Italy, not of Germany. In fact it's not far from the Austrian border.

The nice thing about some of the dialects is that they sound very soft and musical. Apparently the Bavarian dialect is the favorite of Germans. The purest German, whatever that means, is supposed to be spoken in Hanover.

Here is a funny video on the subject of an unfortunate man who does not know Badisch. (How did he get the job if he can't read the sign?)



Here's a video in which a German girl tries to speak in 12 different dialects.



I think what I learned today is to keep on with my efforts to master standard German.
 
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  • #1,948
The first one is a reference to a video about analphabets: Here is the original. There is one with subtitles around but I didn't find it. Forget the automatic subtitles, they are completely wrong.
 
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  • #1,949
mfb said:
The first one is a reference to a video about analphabets: Here is the original. There is one with subtitles around but I didn't find it. Forget the automatic subtitles, they are completely wrong.

I thought the literacy rate in Germany is virtually 100%. Are there really more than 7 million illiterates out of 80 million? Does this include people who were not educated in Germany?
 
  • #1,950
Here are two more.





Last one for now.

 
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