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TIL that apple juice made of apples which had possible grubs officially still count as vegan.
Not that I would care. It's more a case of schadenfreude.
Not that I would care. It's more a case of schadenfreude.
Today I Learned
- Thread starter Greg Bernhardt
- Start date
In summary: Today I learned that Lagrange was Italian and that he lamented the execution of Lavoisier in France during the French Revolution with the quote:"It took them only an instant to cut off this head and a hundred years might not suffice to reproduce it's...brains."
- #3,117
epenguin
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Is there anything less than a PF quark?Ibix said:Just that the number of trophy points you have is above a certain value. You probably got an alert about a trophy, for replying or posting a certain number of times or whatever. Noting that you have 22 trophy points, I guess "electron" is 20+. As I say, someone reverse engineered it - search General Discussion for posts containing ocean and mountain.
Edit: it doesn't mean we think negatively of you...
I don't know if there is an astronomical term for a body that enters the solar system, maybe interacts slightly with one or two planets and then vanishes out beyond possibility of observation? (They might very slightly have altered some orbits and tides scarcely detectably, but overall there is only a small effect bringing forward the running down of the system.)
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Stephenk53
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Today I learned that it’s important to check to make sure you click reply and not reply all to an email sent to dozens of people. Now I keep getting reply’s from people trying to reply to the first email and instead accidentally replying to mine.
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Ibix
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Here's the list that was reverse engineered. Presuming you can't get negative trophy points, I think the answer is no.epenguin said:
- #3,120
zoki85
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Universe is full of giant clouds containing significant percentage of https://www.sciencealert.com/cosmic-cloud-contains-enough-alcohol-to-keep-the-world-world-drinking-for-a-billion-years.
Let's have a party!
Let's have a party!
- #3,121
Hsopitalist
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Today I learned that tyro means beginner.
- #3,122
Klystron
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Today I learned the word abecedarian as a synonym for tyro.
- #3,123
epenguin
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Today I learned what ortalans are and that it not so long ago was made illegal to hunt them in France or to serve them in restaurants (on account of cruelty as well as extinction probability). I don't suppose they ever were anywhere else, except they, or something like them in China no doubt.
https://www.cnbc.com/2018/05/04/real-story-about-the-illegal-ortolan-delicacy-eaten-on-billions.html
https://www.cnbc.com/2018/05/04/real-story-about-the-illegal-ortolan-delicacy-eaten-on-billions.html
- #3,124
BillTre
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TIL that fans heckling the Sign Stealing Houston Astros at a preseason game with signs about the Astro's sign stealing had their heckling signs stolen (taken) by stadium personnel.
- #3,125
Tom.G
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AARRGHH! No good deed goes unpunished!BillTre said:
- #3,126
Adesh
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Today I learned (realised) that Physics is different from Mathematics. Mathematics can help us in Physics but upto to a limited extent only.
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Today I learned that "dilatation" is a word:
https://english.stackexchange.com/q...al-difference-between-dilation-and-dilatation
That said, I'm not sure that "time dilatation" is correct:
https://www.physicsforums.com/threa...tation-and-curved-spacetime-follow-up.985656/
https://english.stackexchange.com/q...al-difference-between-dilation-and-dilatation
That said, I'm not sure that "time dilatation" is correct:
https://www.physicsforums.com/threa...tation-and-curved-spacetime-follow-up.985656/
- #3,128
cosmik debris
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Adesh said:
You've been watching Sabine haven't you?
Cheers
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Adesh
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I don’t know what Sabine is?cosmik debris said:
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Keith_McClary
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- #3,131
Adesh
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But I got that realisation when I tried to solve a problemKeith_McClary said:
“Show that the magnetic field produced by a solenoid will be parallel to its axis regardless of its cross sectional shape”.
Due to some previous confrontations and the above question I became sure that Mathematics cannot fully describe Physics.
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Today I learned that there really is a fish called the red herring.
- #3,133
Ibix
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There is indeed - a method of preparing a kipper: https://en.m.wikipedia.org/wiki/Kipper#ColouringPeroK said:
- #3,134
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Ibix said:
Have you been watching "Grand Tours of Scotland" as well?
https://www.bbc.co.uk/iplayer/episodes/b094ndf8/grand-tours-of-scotlands-lochs
- #3,135
Ibix
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No - I looked up the expression ages ago when I realized I knew what it meant but not why it meant it. The story is that someone distracted some hounds using a red herring (smelly fish), and it became a byword for a false lead. I must say I don't think I've seen a red herring in real life, but I knew it was a real as well as a figurative thing.PeroK said:
I take it you're enjoying the series? I think I may be looking for ways to pass the time over the next few weeks...
- #3,136
Klystron
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TIL (yesterday morning, actually) not all strikes on your windshield while freeway driving are necessarily gravel.
While tailing a gravel truck up a grade on I-215 freeway, I heard several loud 'Ticks' on my windshield. "Loose gravel", I thought; though the truck appeared clean as I passed it on the next down grade. Gray massive clouds roiled but no rain. 'Tick, Tick'. Finally realized my truck was being pelted by nearly invisible hail stones! The sound followed me down Iron Mountain abating around 3000' elevation.
While tailing a gravel truck up a grade on I-215 freeway, I heard several loud 'Ticks' on my windshield. "Loose gravel", I thought; though the truck appeared clean as I passed it on the next down grade. Gray massive clouds roiled but no rain. 'Tick, Tick'. Finally realized my truck was being pelted by nearly invisible hail stones! The sound followed me down Iron Mountain abating around 3000' elevation.
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Keith_McClary
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You should find them shelved right next to the haggis.Ibix said:
Last edited:
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zoki85
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Didn't know Heron of Alexandria was a true inventor of the steam engine.
James Watt, don't you ever brag about it!
James Watt, don't you ever brag about it!
- #3,139
Buzz Bloom
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Hi zoki:zoki85 said:
I did not find any mention of steam engine in the link you cited. Perhaps you had intended to cite a different article about Heron.
I do vaguely remember from some reference which I have forgotten that someone in that era, I think a Greek inventor, invented a more-or-less hollow spherical device filled with water and mounted to spin. The device had a few spouts at an angle along its equator. When it was heated, steam jets came out out the spouts and propelled rotation of the sphere. I believe this device had no practical use at the time. I suppose that technically this was an engine having motion generated by steam.
Regards,
Buzz
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Keith_McClary
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zoki85
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Come on, nobody should expect any decent efficiency from a small, primitive, steam propelled device. The important however was demonstrated principle.mfb said:
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zoki85
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Indeed. I wanted to include wiki article but forgot to do it.Buzz Bloom said:
Don't know how accurate is the wiki regarding Heron. I watched documentary on TV about him
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Keith_McClary
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Today I Learned about:Buzz Bloom said:
https://www.realclearscience.com/blog/2020/03/19/four_ancient_greek_inventions_that_were_way_ahead_of_their_time.html?
Heron of Alexandria was one of antiquity's great experimenters. He devised a vending machine, a basic syringe, and an ingenious fountain, but he was particularly fond of steam devices. One of his most notable and theatrical feats of technology was getting temple gates to open automatically. A roaring fire would be lit on a large altar and some of the heat would be siphoned to a pot of water below. The heated, expanding gases would force water through a siphon into another tank attached to a balance system which operates the axles of the doors. When the tank filling with water would sink down, the doors would swing open!
- #3,145
nrqed
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"Dilatation" is the word we use in French. I wonder if it might have crept into English through French speaking scientists.PeroK said:
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I suspect it crept into PF though a French-speaking OP!nrqed said:
We have the word "dilatory" as well in English, which means slow to act.
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mfb
Mentor
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It's "Dilatation" in German, too. And in Swedish. And most other related languages use something similar.
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If you think about it "dilatation" is a dilation of dilation.mfb said:
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Our lexicon says: late latin dilatatio = extension
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Today I learned that King George III donated his large private library to the nation and it became the British Library. And, on account of the King's interest in and patronage of astronomy, William Herschell originally named the new planet Uranus after him: Georgium Sidus.