Today I Learned

  • Thread starter Thread starter Greg Bernhardt
  • Start date Start date
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
6,973 replies · 532K views
NASA had a panel on UAPs (formerly UFOs).

Basically, they want better data:
“We have not seen the extraordinary yet.” Most incidents end up being more mundane. Panel member Scott Kelly, a former NASA astronaut and naval aviator, recounted flying in an F-14 off the coast of Virginia, when his co-pilot swore that he saw a UAP. “We turned around,” he said. “We went to go look at it. It turns out it was Bart Simpson, a balloon.”
An ISO (Identified Simpson Object).
 
Reply
  • Like
  • Haha
Likes   Reactions: pinball1970, russ_watters, collinsmark and 1 other person
Physics news on Phys.org
BillTre said:


The last part of the video kind of reminds me of this spoof:

(The following is not real: it's a creative video made with CGI meant as satire/comedy)
 
Reply
  • Haha
  • Like
Likes   Reactions: pinball1970, Borg, OmCheeto and 1 other person
TIL Fats Waller died aged 39 of pneumonia.
 
Reply
  • Sad
Likes   Reactions: BillTre
Reply
  • Like
  • Haha
Likes   Reactions: jack action and BillTre
According to Wikipedia, Paul McCartney wished to make a film about a rock band whose members discover they are being impersonated by a group of extraterrestrials. He had Isaac Asimov write a proposal but that's as far as the project went.
 
Reply
  • Wow
  • Like
Likes   Reactions: BillTre, Ibix and pinball1970
Hornbein said:
According to Wikipedia, Paul McCartney wished to make a film about a rock band whose members discover they are being impersonated by a group of extraterrestrials.
I have my suspicions about this woman.
 
Reply
  • Like
Likes   Reactions: strangerep
TIL of the Subtropical Russian Party. Their slogan was, “Let there be bananas in the Banana Republic.” And their entire platform was that they wanted the mean temperature of Russia to be 78 degrees Fahrenheit.

Tropical Russia.jpg

With that much global warming, Russia, Antarctica, and Denmark/Greenland would have the most of the livable real estate.
 
Reply
  • Like
Likes   Reactions: BillTre
DrGreg said:
Today I learned that the PracticalCryptography website does not support HTTPS.
Curious, http://www.russinovich.com is the same. Author of several cyber security novels.

"Someone might be able to see the information you send or get through this site."

scary ? nah
 
Last edited:
Reply
  • Like
Likes   Reactions: Hornbein
TIL The drones are tuned in a bag pipe, I thought the piper blew up the bag and off he went.

Far from it.

The drones are Bb and octave apart (on the ones I have checked) and the tune is played on the chanter with his fingers

In the wiki link below there is a recording of the “Skye boat song.”

The top note at the end each phrase sounds flat which I thought odd if they want to showcase an instrument on wiki.

https://en.wikipedia.org/wiki/Bagpipes

I may contact bag pipe news see what their view is
https://bagpipe.news/

The inspiration for this informative thread was this thread https://www.physicsforums.com/threads/excellence-on-obscure-instruments.1053063/

#31 – Bag pipes at a wedding from @DennisN
 
Last edited:
Reply
  • Like
Likes   Reactions: Ibix and DennisN
pinball1970 said:
TIL The drones are tuned in a bag pipe, I thought the piper blew up the bag and off he went.

Far from it.

The drones are Bb and octave apart (on the ones I have checked) and the tune is played on the chanter with his fingers

In the wiki link below there is a recording of the “Skye boat song.”

The top note at the end each phrase sounds flat which I thought odd if they want to showcase an instrument on wiki.

https://en.wikipedia.org/wiki/Bagpipes

I may contact bag pipe news see what their view is
https://bagpipe.news/

The inspiration for this informative thread was this thread https://www.physicsforums.com/threads/excellence-on-obscure-instruments.1053063/

#31 – Bag pipes at a wedding from @DennisN
I bet that flatness is deliberate.

I live in Bali. The gamelan notes are close to a pentatonic scale but deliberately "sour" to give it a certain character.

Country blues was tuned by ear and usually didn't match orthodox pitch correctness. It gives the sound personality.

In Thailand karaoke is popular. Often I'd be far enough away I could hear only the singer, not the background. It sounded grossly out of tune to me so I'd be sure to pack ear plugs. If you can hear the chords though it usually made sense. Asian singing often uses "out of tune" notes that in the West only little children sing.
 
Reply
  • Like
Likes   Reactions: pinball1970
TIL... about the Lesbian Rule and its relationship to Dark Matter. (Not what you're thinking!)

Aristotle (via Wikipedia) said:
For what is itself indefinite can only be measured by an indefinite standard, like the leaden rule used by Lesbian builders; just as that rule is not rigid but can be bent to the shape of the stone, so a special ordinance is made to fit the circumstances of the case.
Yep, definitely like Dark Matter.

The puzzling name similarity between the Lesbian Rule (pliable lead) and female-gay seems to be coincidence -- associated with writings of the poet Sappho of Lesbos.
 
Swamp Thing said:
TIL that papyrus is now nearly extinct in Egypt:


I got some growing at my house.
Its an interesting plant (with a lot of history).
 
Reply
  • Like
Likes   Reactions: pinball1970 and Swamp Thing
Today I learned that The Good, the Bad and the Ugly is called Il Buono, Il Brutto, Il Cattivo in Italian, which means The Good, the Ugly, the Bad. And Spanish has a "two countries divided by a common language" thing going on with it being released in Spain as El bueno, el feo, y el malo (same as in Italian) and in South America as El bueno, el malo, y el feo, (same as in English).

Spanish Wikipedia: https://es.wikipedia.org/wiki/Il_buono,_il_brutto,_il_cattivo. Note the bold text at the top of the first paragraph.

Edit: also, today I learned that if you use the paste key on this phone instead of the popup context menu, it has a nasty habit of replacing a word with what you paste instead of inserting it.
 
Last edited:
Reply
  • Like
Likes   Reactions: Drakkith
BillTre said:
This looks fun:


There was one of those in a shopping mall in Tokyo called Divers City. I went for the zombie apocalypse virtual reality ride instead.
 
[Mentor Note: The latest 2 replies in this thread have been placed in Moderation (hidden) pending Mentor review]
 
 
Reply
  • Like
Likes   Reactions: Math100, jedishrfu and Drakkith
Today I learned that in Detroit the 1967 riots remain to this day a popular topic of conversation. I guess for people who lived through it it was by far the most exciting thing that ever happened to them.
 
Reply
  • Skeptical
Likes   Reactions: Borg