Re: Spacetime

Liste des GroupesRevenir à sp relativity 
Sujet : Re: Spacetime
De : hitlong (at) *nospam* yahoo.com (gharnagel)
Groupes : sci.physics.relativity
Date : 05. Jul 2024, 23:53:51
Autres entêtes
Organisation : novaBBS
Message-ID : <d0a0b3bc7203eb1cf8b2e1a1a2a7da2d@www.novabbs.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12
User-Agent : Rocksolid Light
Athel Cornish-Bowden wrote:
>
On 2024-07-05 13:01:12 +0000, gharnagel said:
>
Mathematics is a human invention.  Basically, it's just
counting.  We count things in the real world: apples, sheep,
fingers, etc.
>
Something I found absolutely brilliant when I first read it is the
chapter in volume 1 of Feynman's Lectures on Physics, where he starts
with counting sheep and proceeds in simple understandable steps to
logarithms and Euler's identity (e^{i pi} + 1 = 0).
There ya go!  Maybe I'll have to get out my LoP and reread that.

  Anything else is frosting on the cake.
>
I like frosting (I have a degree in mathematics, so I obviously
do), but anyone who believes numbers, any number, exist as real
objects out there in the universe somewhere has bats in his belfry.
>
Well, in Wozzie's case we knew that already.
Indeed.  He has the manners of a pig.  I grew up on a farm and we often
had pigs and cows in the same corral.  When cow plop happened, the pigs
came running.  So I've had my say and I'm done with him.
In one of the trade journals, many years ago, someone wrote an article
as a Socratic dialog about a young man who was trying to decide whether
to become a mathematician or a scientist.  One of the things Socrates
tried to draw out was the student's attitude toward certainty and
uncertainty, mathematics involving more of the former.

Date Sujet#  Auteur
4 Jul 24 * Re: Spacetime35Thomas Heger
4 Jul 24 `* Re: Spacetime34gharnagel
4 Jul 24  +* Re: Spacetime26Maciej Wozniak
4 Jul 24  i`* Re: Spacetime25gharnagel
5 Jul 24  i `* Re: Spacetime24Maciej Wozniak
5 Jul 24  i  `* Re: Spacetime23gharnagel
5 Jul 24  i   +* Re: Spacetime19Maciej Wozniak
5 Jul 24  i   i`* Re: Spacetime18gharnagel
5 Jul 24  i   i `* Re: Spacetime17gharnagel
6 Jul 24  i   i  `* Re: Spacetime16gharnagel
6 Jul 24  i   i   +* Re: Spacetime14Maciej Wozniak
6 Jul 24  i   i   i`* Re: Spacetime13gharnagel
6 Jul 24  i   i   i +- Re: Spacetime1Erich Missiakos Kong
6 Jul 24  i   i   i `* Re: Spacetime11gharnagel
7 Jul 24  i   i   i  `* Re: Spacetime10Maciej Wozniak
7 Jul 24  i   i   i   `* Re: Spacetime9gharnagel
7 Jul 24  i   i   i    `* Re: Spacetime8Maciej Wozniak
7 Jul 24  i   i   i     `* Re: Spacetime7gharnagel
7 Jul 24  i   i   i      +- Re: Spacetime1Miltiadis Komáromi Hew
8 Jul 24  i   i   i      `* Re: Spacetime5gharnagel
8 Jul 24  i   i   i       `* Re: Spacetime4gharnagel
8 Jul 24  i   i   i        `* Re: Spacetime3gharnagel
8 Jul 24  i   i   i         `* Re: Spacetime2Maciej Wozniak
8 Jul 24  i   i   i          `- Re: Spacetime1gharnagel
6 Jul 24  i   i   `- Re: Spacetime1Rexx Hatukaev
5 Jul 24  i   `* Re: Spacetime3Athel Cornish-Bowden
5 Jul 24  i    +- Re: Spacetime1Maciej Wozniak
5 Jul 24  i    `- Re: Spacetime1gharnagel
5 Jul 24  `* Re: Spacetime7Thomas Heger
5 Jul 24   +* Re: Spacetime3Maciej Wozniak
6 Jul 24   i`* Re: Spacetime2Thomas Heger
6 Jul 24   i `- Re: Spacetime1Maciej Wozniak
5 Jul 24   `* Re: Spacetime3gharnagel
5 Jul 24    +- Re: Spacetime1Maciej Wozniak
6 Jul 24    `- Re: Spacetime1Thomas Heger

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