Lmst

How the oldest science in the world flourished in Toledo 1,000 years ago.

An international conference on the origins of galaxies pays tribute to the pioneering scientific cooperation between Muslims, Jews, and Christians that took place in Spain at the end of the Middle Ages.

https://mediafaro.org/article/20250515-how-the-oldest-science-in-the-world-flourished-in-toledo-1000-years-ago?mf_channel=mastodon&action=forward

#Toledo #Science #Astronomy #Galaxies #Spain #Muslims #Jews #Christians #Ptolemy #AlZarqali #Copernicus #Almagest #MiddleAges #History

Hockey Sandwich – Grab Bag o’ Humour

Let’s go back to the Four Nations Cup. In the first game with Canada against the US, the Americans started 3 fights in the first 10 seconds. This surprising turn of events, eventually led to the Americans defeating Canada in that match.

But the Americans were overconfident. They did not start the second match with 3 fights in the first ten seconds. This lack of emotion in the second Canada/US match up and series crowning game put the US at a disadvantage.

Not only that, but the Canadians could now see that the Americans were quitters. They had started with a strategy that they had not followed up on. And that is why Canada won the series.

*

If I had a time machine, I know exactly which event in history I would like to erase. Hopefully this travesty would never be thought of again,

I would kill the person who first came up with silent letters in writing.

The problem is, whoever did such a dastardly deed, hid their tracks well and there is no way of knowing when exactly they started.

But I would start with Ptolemy’s parents. I would butter them up. Where did you come up with the idea of an extra letter in his name? I would ask. From there I would trace it back to its very beginning. I might have to kill the originator. Possibly that would be Ptolemy’s parents. Either way, I won’t be forced to write Ptolemy again.

*

Canadians love to lament that the NHL is not giving Canada enough hockey teams. Quebec City and Hamilton both really, really want a team. But the NHL is standing firm.

Well I have a surefire way of getting Canada a hockey team. The only problem with it, is that it will take a few years for the plan to come to fruition.

The plan has worked twice before. It is simply to give the city of Atlanta a hockey team.

Yes it has worked twice before. After the Atlanta Flames went belly up, they became the Calgary Flames. After the Atlanta Thrashers went belly up, they became the Winnipeg Jets. It can be done and has been done. It has directly resulted in a Canadian NHL team 100% of the time.

The only thing that might foil this plan is that the people of Atlanta might decide they like hockey.

#Atlanta #AtlantaFlames #AtlantaThrashers #CalgaryFlames #Canada #emotion #fights #FourNationsCup #Hamilton #NHLTeams #Ptolemy #QuebecCity #quitters #silentLettersInWriting #timeMachine #US_ #WinnipegJets

@fesshole
That's not weird. This is weird...
#genealogy #Ptolemy

At our February meeting (Sunday 2nd, ONLINE via Zoom) we welcome back Professor Lloyd Llwellyn-Jones, who will give a talk on "The Cleopatras: the Forgotten Queens of Egypt" (1/4)

#ancientEgypt #egyptology #ancientHistory #cleopatra #ptolemy

Egyptian portrait of a Ptolemaic queen, possibly Cleopatra, c. 51–30 BC, located in the Brooklyn Museum

Now we need to look back in time to the classical understanding of the world. How better to do that than with Ptolemy's map of the world known to him at the time? None of Ptolemy's maps survived into the medieval world, but his list of places - a sort of gazetteer - did. 8000 places with his estimates of their latitude and longitude, from which his maps have been reconstructed. See the similarity? No, nor do I, but Schiaparelli found a way to link them. #maps #Mars #Ptolemy

A map of the world (as know to him) by Claudius Ptolemaeus, or Ptolemy, c. the year 150. It didn't survive but has been reconstructed from lists of places and their latitude and longitude.

a little bit of concurrency

https://ptolemy.berkeley.edu/projects/embedded/concurrency/lectures/Lee07.pdf

#ptolemy #esterel

The many cousins of the Golden Ratio:
https://www.youtube.com/watch?v=cCXRUHUgvLI
#maths #GoldenRatio #mathematics #Mathologer #pentagon #heptagon #Ptolemy #Pythagoras

Gradual changes in philosophy cannot be separated from the societal changes in Western societies at the time, with medieval Europe being a concoction of feudal states ruled locally by aristocrats and populated by mainly illiterate peasants, priests represented the majority of (if not all) literate people... #metaphysics #Scholasticism #thomasaquinas #historyofphilosophy #FrancisBacon #copernicanrevolution #philosophy #isaacnewton #platonism #Ptolemy #scientificrevolution
https://philosophyindefinitely.wordpress.com/2020/08/12/scholasticism-and-the-scientific-revolution/

`Epicycles are often cited as one of the biggest problems with the Ptolemaic #geocentric model. And that is precisely what Copernicus is taking aim at here. That’s not to say that Copernicus was fundamentally against epicycles. Indeed, his own adherence to uniform circular motion forced him to include #epicycles in his model. But what #Copernicus is criticizing here is the size demanded by the Ptolemaic model for #Venus in particular.`

https://www.universetoday.com/164227/why-did-copernicus-reject-geocentrism/#more-164227

#Ptolemy #Heliocentric #astronomy

Ptolemy’s Universe: experiment with epicyles and create movies. Powered by Julia¹, Pluto², and the PlutoSliderServer³: https://pluton.lee-phillips.org/sliders/epicycles.html

1 http://lee-phillips.org/julialang/
2 https://lwn.net/Articles/835930/
3 https://github.com/JuliaPluto/PlutoSliderServer.jl

#julialang #astronomy #ptolemy

`It is the Prime Mover’s imperceptibility that #Ptolemy highlights in his description...

"Now the first cause of the first motion of the universe, if one considers it simply, can be thought of as an invisible and motionless deity and the division [of theoretical philosophy] concerned with investigating this [can be called] ‘theology’, since this kind of activity, somewhere up in the highest reaches of the universe, can only be imagined, and is completely separated from perceptible reality"`