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Author Topic: Learning has occurred  (Read 115640 times)

hedgie

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Re: Learning has occurred
« Reply #500 on: 19 Dec 2021, 13:57 »

At least the tomato thing helps with explaining D&D stats.
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Re: Learning has occurred
« Reply #501 on: 19 Dec 2021, 15:35 »

Along that theme:

A chimpanzee isn't a monkey

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David: Even though a chimp is totally in every meaningful way, obviously it's a monkey, it's not a monkey. You know, it's a special place that's been made by biologists for pedants to reside so that any time someone refers to a chimpanzee as a monkey, like you did then, a pedant like me says, "Oh no, a chimpanzee isn't a monkey"; and I've started to hate myself for that.
Lee: Nice of you to join the rest of us.

Also in that category, while I'm on the topic, "blank isn't a colour."
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Yet the lies of Melkor, the mighty and the accursed, Morgoth Bauglir, the Power of Terror and of Hate, sowed in the hearts of Elves and Men are a seed that does not die and cannot be destroyed; and ever and anon it sprouts anew, and will bear dark fruit even unto the latest days. (Silmarillion 255)

Morituri

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Re: Learning has occurred
« Reply #502 on: 19 Dec 2021, 16:54 »

The common ancestor of the Coelecanth and cats diverged from "fish" more recently than the common ancestor of Coelecanth and other fish. 

This fascinates me because humans' most recent common ancestor with cats, and in fact, the earliest common ancestor of all mammals, and before that the earliest common ancestor of all reptiles, all came after that.  I don't know why they picked "cats" to communicate this story, but it can't be true without including all mammals, and that can't be true without including all the reptiles, and that can't be true without including all the dinosaurs including birds. 

Meaning that the Coelecanth is an offshoot of the lineage that gave rise to all land animals, and that lineage has given rise to no other surviving species of fish.   And that seems unique enough to be worth studying and trying to understand.  What was so special about it?  What cocktail of evolutionary pressures caused the following sequence of events?

Likewise with sea squirts.  It's the closest relative to a vertebrate that isn't actually a vertebrate.  So "useless but true" for most of us, but if you happen to have an interest in how vertebrates came about, then understanding the sea squirt is likely to be important.

« Last Edit: 19 Dec 2021, 17:15 by Morituri »
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Runkel

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Re: Learning has occurred
« Reply #503 on: 20 Dec 2021, 15:52 »

Also in that category, while I'm on the topic, "blank isn't a colour."
Yet Zero is a number.  Isn't it?
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Tova

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Re: Learning has occurred
« Reply #504 on: 20 Dec 2021, 15:58 »

While it is true that "blank" is not a colour, I had intended to say "black," of course.  :roll:
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Yet the lies of Melkor, the mighty and the accursed, Morgoth Bauglir, the Power of Terror and of Hate, sowed in the hearts of Elves and Men are a seed that does not die and cannot be destroyed; and ever and anon it sprouts anew, and will bear dark fruit even unto the latest days. (Silmarillion 255)

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Re: Learning has occurred
« Reply #505 on: 20 Dec 2021, 17:00 »

potatoes are also not colors.

But people seldom seem compelled to wonder whether they are or aren't, nor to express opinions about their non-numeric status.
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Re: Learning has occurred
« Reply #506 on: 20 Dec 2021, 19:52 »

Sorry, you lost me there.
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Yet the lies of Melkor, the mighty and the accursed, Morgoth Bauglir, the Power of Terror and of Hate, sowed in the hearts of Elves and Men are a seed that does not die and cannot be destroyed; and ever and anon it sprouts anew, and will bear dark fruit even unto the latest days. (Silmarillion 255)

Morituri

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Re: Learning has occurred
« Reply #507 on: 20 Dec 2021, 21:12 »

I was being very slightly oblique, I guess.  But, pointing out that 'black' is understood to be in the general category of colors, and 'zero' in the general category of numbers, by practically everyone whether or not they accept the premise that they actually are members of those categories. 

The counterexample, 'potato', is something that is clearly not a color (nor a number) in that it would not even be a sensible answer to a question about color or quantity.

The whole point of this is that, when we feel a need to actually *say* that black is not a color, we are saying that, whatever we think it is, it's pretty close to the idea of a color.  It's something that would be a sensible answer if we ask what color some object is.  The only sense in which it's not a color is that it's not the color of any wavelength of light.

For much of human history (up to some time in the middle ages, in Europe) people felt the same way about 'zero' being a number.  If someone asked how many of something there were, 'none' was a non-numeric out-of-band response, indicating that the question was in error.  But at some point the Arabic numerals were adopted, and 'zero' became a way to say 'none' that was numeric, in-band, and didn't require anyone to reformulate a question or deal with an error.  And then we had the same fight about negative numbers, and then about imaginary and complex numbers, etc. 

So...  It's up to everybody whether to accept the idea that 'black' is a color or not.  I'm happy to go around thinking that it is.  For the same reason that most people think that having an opinion about whether it is or not even makes sense.  It's just the 'zero' of the color spectrum.



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sitnspin

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Re: Learning has occurred
« Reply #508 on: 20 Dec 2021, 21:17 »

It's also a matter how one defines terms. Whether or not black is a colour entirely depends on what one means when they say "colour".
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Re: Learning has occurred
« Reply #509 on: 20 Dec 2021, 21:24 »

Exactly.  And I'm happy to mean by 'color' something that includes 'black' (and even 'clear') as possible values.  Others can choose to mean by 'color' some smaller category;  we may need to clarify a few edge cases if we're discussing it, but I'm not going to argue over which of us owns the word.
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Re: Learning has occurred
« Reply #510 on: 06 Jan 2022, 16:39 »

Today I learned that freezer door gaskets, if they get too cold, actually freeze.  That would seem to be a design flaw, wouldn't it?  I mean, thinking about it.... 

Anyway, the appropriate thing to do, if your door is closing but your gasket won't conform all the way around, (symptoms are frost or ice building up from condensation inside, leaked water, or occasional failures to maintain freezing temperature) is to get out a hair  dryer and warm up the gasket until it becomes flexible once again.  Don't overdo it; too much heat will cause your gasket to burn (if rubber) or melt (if plastic).

But anyway, once you thaw the darn thing out, it can flex and conform itself to seal.  And if it freezes in THAT configuration that's okay.
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Re: Learning has occurred
« Reply #511 on: 07 Jan 2022, 12:12 »

Today is the day I learned that Damascus steel was nanotech.
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Perfectly Reasonable

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Re: Learning has occurred
« Reply #512 on: 08 Jan 2022, 10:48 »

Electronic parts often have colored bands or dots to show their values. In that code, black is zero.
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hedgie

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Re: Learning has occurred
« Reply #513 on: 08 Jan 2022, 11:59 »

Today is the day I learned that Damascus steel was nanotech.

W00tz!  that is useful knowledge.
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Re: Learning has occurred
« Reply #514 on: 19 Jun 2022, 09:36 »

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Re: Learning has occurred
« Reply #515 on: Yesterday at 15:02 »

Three things from this month since I sometimes forget about this forum.

1) The Ryker Maneuver was a fotm of disability accommodation for Jonathan Frakes as he had severely injured his back while moving furniture when he was younger. That metjod of takrn a sit was ultimately easier for him. Frakes also did the Ryker lean to accommodate his chronic pain.

2)
Lt. Col. Charles “Bazooka Charlie” Carpenter (August 29, 1912 – March 22, 1966) was a United States Army officer and army observation pilot who served in World War II.  He is best remembered for destroying several enemy armored vehicles in his bazooka-equipped L-4 Grasshopper light observation aircraft.

3) Speaking of WWII, Hitler wasn't just figuratively a sh!teating Nazi. Thanks to his favorite quack, Adolf Hitler was also a literal sh!t eating Nazi. Apparently AH thought he farted too much and got nervous farts as well, and he dpent A LOT of money on quack cures. And it wasn'tnuntil he met his favorite quack that he got any results. The pills contained bacteria cultured "from a Bulgarian peasant's feces". And, thanks to 'curing' his excessive flatulence AH let this quack prescribe him tons of other nonsense as well (methamphetamine, arsenic tablets, etc).
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