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fermatslibrary's profile
Fermat's Library
Fermat's Library
Fermat's Library
@fermatslibrary

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Fermat's Library

@fermatslibrary

A platform for illuminating academic papers. We publish an annotated paper every week. Our chrome extension for arXiv: https://fermatslibrary.com/librarian 

fermatslibrary.com
Joined September 2015

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    Fermat's Library‏ @fermatslibrary 19 Jul 2018
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    FUN FACT A Moment was a medieval unit of time. 1 day was divided into 24 hours and 1 hour was equal to 12 lengths of the period from sunrise to sunset. The hour was divided into 4 puncta, 10 minuta, or 40 momenta. Considering an average 12 solar hours: 1 moment = 90 seconds 🤓pic.twitter.com/OTiF88ZAuC

    6:08 AM - 19 Jul 2018
    • 1,857 Retweets
    • 4,970 Likes
    • Andy Adnan A. Abubakar Contradictorium Tristis Israeli Atheist Julien Kos Em ʀᴀɪɴᴀ 🌧 “ᴰᵉᵖʳᵉˢˢᵉᵈ ᵗʰᵒᵗⁱᵃⁿᵃ” TheOldestGenXer 🚭 Wyatt Cola
    41 replies 1,857 retweets 4,970 likes
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      2. 感觉‏ @Meditate2Peace 19 Jul 2018
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        Replying to @fermatslibrary

        Do you know the Astrolabe? An astrolabe is an elaborate inclinometer, historically used by astronomers and navigators to measure the inclined position in the sky of a celestial body, day or night.pic.twitter.com/ykrMnlfRnd

        1 reply 8 retweets 31 likes
      3. Tamara J.J‏ @TamaraJJason 19 Jul 2018
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        Replying to @Meditate2Peace @fermatslibrary

        #astrophisics♡ it was created by Hypatia, got a tatto with it , sextant and a verse from Robert Frost Bond and Fire when I was 17ish

        1 reply 1 retweet 6 likes
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      1. Derek Abbott‏ @derek_abbott60 19 Jul 2018
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        Replying to @fermatslibrary

        And 1 puncta = 15 mins. So if i arrive within 15 mins of the agreed time I’m punctual? I’ll try that out at the next committee meeting as my excuse.

        0 replies 5 retweets 28 likes
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      2. Rashmi Dixit‏ @RashmitDixit 19 Jul 2018
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        Replying to @fermatslibrary

        Hindu units of time mentioned in the vedas were very advanced. Vedas date back approximately to 1900BC. https://en.m.wikipedia.org/wiki/Hindu_units_of_time …

        3 replies 1 retweet 12 likes
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      1. Emmanuel C‽aiя‏ @BzhClair 19 Jul 2018
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        Replying to @fermatslibrary

        Hence the importance of the clock invented at the end of the Middle-Ages, until then hours did not have the same length, typically a daylight hour in the Summer was up to twice as long as one in the Winter.

        0 replies 1 retweet 8 likes
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      1. Richkeogh‏ @Richkeogh 19 Jul 2018
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        Replying to @fermatslibrary

        So were moments longer in the summer than in the winter?

        0 replies 0 retweets 18 likes
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      2. Erik Weissengruber‏ @epWeissengruber 19 Jul 2018
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        Replying to @fermatslibrary @emilycare

        Note that the period from sunrise to sunset changes with latitude. IIRC some monasteries divided up the day in accordance with changing daylight lengths. You would have asymmetrical absolute durations of time between daylight prayers and evening.

        1 reply 0 retweets 5 likes
      3. Emily Care  🏳️‍🌈 - #CloseTheCamps #AbolishICE‏ @emilycare 19 Jul 2018
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        Replying to @epWeissengruber @fermatslibrary

        pic.twitter.com/Bd4TvboZiR

        1 reply 1 retweet 1 like
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      2. Keith‏ @Wooddweller72 22 Jul 2018
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        Replying to @fermatslibrary @nikideemo

        I will now store this in long-term memory...I’ll make room by forever forgetting the name of the street I grew up on. 🙂

        1 reply 0 retweets 3 likes
      3. Niki-Demon, live from the 9th Circle of Hell‏ @nikideemo 22 Jul 2018
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        Replying to @Wooddweller72 @fermatslibrary

        Sorry! Although, that could be a “plus,” depending on your memories, which are all just momentas in time!

        1 reply 0 retweets 1 like
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