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450 results for “Ptolemy”
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#PTOLEMY OF #CYPRUS multi-search-tag-explorer.headlines-world.com/advanced-sea... #PIETER #NUYTS semantic-search.aepiot.ro/advanced-sea... www.paypal.com/donate?busin... aePiot: Semantic nodes: The new SEO currency. Build yours now.
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#PTOLEMY OF #CYPRUS multi-search-tag-explorer.headlines-world.com/advanced-sea... #PIETER #NUYTS semantic-search.aepiot.ro/advanced-sea... www.paypal.com/donate?busin... aePiot: Semantic nodes: The new SEO currency. Build yours now.
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@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
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`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"`
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`During the second century AD, Claudius #Ptolemy described a 5-limit diatonic scale in his influential text on music theory #Harmonics, which he called "intense diatonic". Given ratios of string lengths 120, 112+1/2, 100, 90, 80, 75, 66+2/3, and 60, Ptolemy quantified the tuning of what would later be called the #Phrygian scale (equivalent to the major scale beginning and ending on the third note) – 16:15, 9:8, 10:9, 9:8, 16:15, 9:8, and 10:9. `
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`During the second century AD, Claudius #Ptolemy described a 5-limit diatonic scale in his influential text on music theory #Harmonics, which he called "intense diatonic". Given ratios of string lengths 120, 112+1/2, 100, 90, 80, 75, 66+2/3, and 60, Ptolemy quantified the tuning of what would later be called the #Phrygian scale (equivalent to the major scale beginning and ending on the third note) – 16:15, 9:8, 10:9, 9:8, 16:15, 9:8, and 10:9. `
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`The Pythagoreans believed that the mathematics of music should be based on only the one specific ratio of 3:2, the perfect fifth, and believed that tunings mathematically exact to their system would prove to be melodious..#Ptolemy believed that musical scales and tunings should in general involve multiple different ratios arranged to fit together evenly into smaller tetrachords (combinations of four pitch ratios which together make a perfect fourth) and octaves`
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`The Prime Mover is imperceptible, physical objects are perceptible by only one sense, and mathematical objects are perceptible by more than one sense. In this way, #Ptolemy uses epistemological criteria to determine an object’s ontological category—whether it is theological, physical, or mathematical`
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How One of Science’s Biggest Errors Persisted for 1,500 Years.
Ptolemy’s compendium, later known as the Almagest, dominated Western astronomy for 15 centuries. It was also wrong, and it took the fall of an empire to fix it.
https://www.atlasobscura.com/articles/ptolemy-geocentrism-almagest-copernicus
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#TIL #PtolemyClaudius wasn’t the #Ptolemy1Soter that built the Library of Alexandria.
#Ptolemy1 started the Greek rule of Egypt that ended with #CleopatraVII, who also wasn’t the only #Cleopatra.
#Ptolemy Claudius (aka Claudius Ptolemaeus) was the early scientist I always heard about in science classes in college.
I also learned the name Ptolemy comes from the Greek term for “war”.
Ptolemy (name) - Wikipedia
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#TIL #PtolemyClaudius wasn’t the #Ptolemy1Soter that built the Library of Alexandria.
#Ptolemy1 started the Greek rule of Egypt that ended with #CleopatraVII, who also wasn’t the only #Cleopatra.
#Ptolemy Claudius (aka Claudius Ptolemaeus) was the early scientist I always heard about in science classes in college.
I also learned the name Ptolemy comes from the Greek term for “war”.
Ptolemy (name) - Wikipedia
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#TIL #PtolemyClaudius wasn’t the #Ptolemy1Soter that built the Library of Alexandria.
#Ptolemy1 started the Greek rule of Egypt that ended with #CleopatraVII, who also wasn’t the only #Cleopatra.
#Ptolemy Claudius (aka Claudius Ptolemaeus) was the early scientist I always heard about in science classes in college.
I also learned the name Ptolemy comes from the Greek term for “war”.
Ptolemy (name) - Wikipedia
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#TIL #PtolemyClaudius wasn’t the #Ptolemy1Soter that built the Library of Alexandria.
#Ptolemy1 started the Greek rule of Egypt that ended with #CleopatraVII, who also wasn’t the only #Cleopatra.
#Ptolemy Claudius (aka Claudius Ptolemaeus) was the early scientist I always heard about in science classes in college.
I also learned the name Ptolemy comes from the Greek term for “war”.
Ptolemy (name) - Wikipedia
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#TIL #PtolemyClaudius wasn’t the #Ptolemy1Soter that built the Library of Alexandria.
#Ptolemy1 started the Greek rule of Egypt that ended with #CleopatraVII, who also wasn’t the only #Cleopatra.
#Ptolemy Claudius (aka Claudius Ptolemaeus) was the early scientist I always heard about in science classes in college.
I also learned the name Ptolemy comes from the Greek term for “war”.
Ptolemy (name) - Wikipedia
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Ptolemy's is the first map of Ireland. Compiled second century AD. Only copies from Middle ages survive. #100daysofmaps #day50
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Ptolemy's is the first map of Ireland. Compiled second century AD. Only copies from Middle ages survive. #100daysofmaps #day50
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Ptolemy's is the first map of Ireland. Compiled second century AD. Only copies from Middle ages survive. #100daysofmaps #day50
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Ptolemy's is the first map of Ireland. Compiled second century AD. Only copies from Middle ages survive. #100daysofmaps #day50
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Ptolemy's is the first map of Ireland. Compiled second century AD. Only copies from Middle ages survive. #100daysofmaps #day50
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#EvenBananas - #Neutrinos from the #BigBang (#Fermilab)
https://www.youtube.com/watch?v=vbMsye0q17w&ab_channel=Fermilab
#Banana #Bananas #Science #Physics #Astrophysics #Cosmology #TheBigBang #Neutrino #NeutrinoPhysics #CMB #CosmicMicrowaveBackground #NeutrinoOscillation #NeutrinoOscillations #QuantumPhysics #QuantumMechanics #QM #RedShift #PTOLEMY
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Tetradrachm of Ptolemy II
Silver
263 - 254 BCE
https://www.harvardartmuseums.org/collections/object/169877
#Art #Design #Museum #Gallery #MastodonArt #MastoArt #Culture #Random -
Tetradrachm of Ptolemy II
Silver
263 - 254 BCE
https://www.harvardartmuseums.org/collections/object/169877
#Art #Design #Museum #Gallery #MastodonArt #MastoArt #Culture #Random -
Coin hoard minted by Ptolemy VI found in Israel
#archaeology #heritagedaily #archaeologist
https://www.heritagedaily.com/2022/12/coin-hoard-minted-by-ptolemy-vi-found-in-israel/145562
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🎙️ "The Engines of Our Ingenuity 2594: Ptolemy’s Geographia" — https://podcasts.wesfryer.com/episode/5dZFpTly80VajEHgbSzj #podcommons
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Just Intonation According to Claudius Ptolemy 7 limit Soft Diatonic https://youtu.be/yu6BnShDoQA?si=Eu2JpLHAgCms6Mdx via @YouTube
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Anna Vuolanto (National Library of Finland) speaking on Ptolemy Atlases at “Solving the @IIIF -puzzle - Images in Dialogue Helsinki Showcase” event https://www.kansalliskirjasto.fi/en/events/solving-iiif-puzzle-images-dialogue-helsinki-showcase
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University of Wisconsin Milwaukee: Digitized Copy of 1478 Ptolemy’s ‘Geography’ Available Online. “Thanks to the work of Digital Collections & Initiatives, the American Geographical Society Library has recently made available a digitized 1478 copy of Ptolemy’s Geography. The AGSL holds over 30 volumes from copies of Ptolemy’s Geography, with this digitization marking the tenth volume […]
https://rbfirehose.com/2026/04/27/university-of-wisconsin-milwaukee-digitized-copy-of-1478-ptolemys-geography-available-online/ -
University of Wisconsin Milwaukee: Digitized Copy of 1478 Ptolemy’s ‘Geography’ Available Online. “Thanks to the work of Digital Collections & Initiatives, the American Geographical Society Library has recently made available a digitized 1478 copy of Ptolemy’s Geography. The AGSL holds over 30 volumes from copies of Ptolemy’s Geography, with this digitization marking the tenth volume […]
https://rbfirehose.com/2026/04/27/university-of-wisconsin-milwaukee-digitized-copy-of-1478-ptolemys-geography-available-online/
