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Workings of Ancient Calculating Device Deciphered

palegray.net writes "Scientists have discovered new meaning behind the functions of the Antikythera Mechanism, which has been referred to as the oldest known analog computing device. In addition to providing a means to calculate the dates for solar eclipses, the device apparently tracked the four-year cycles of the Olympiad. From the New York Times article: 'Only now, applying high-resolution imaging systems and three-dimensional X-ray tomography, have experts been able to decipher inscriptions and reconstruct functions of the bronze gears on the mechanism. The latest research has revealed details of dials on the instrument's back side, including the names of all 12 months of an ancient calendar.'"

8 of 268 comments (clear)

  1. Data Sets by KGIII · · Score: 5, Informative

    For those interested here are the data sets and some nifty images available to download:

    The Data

    --
    "So long and thanks for all the fish."
  2. Need one today by whitehatlurker · · Score: 5, Informative

    The article is dated tomorrow. NYT needs a device for calculating time more precisely.

    --
    .. paranoid crackpot leftover from the days of Amiga.
  3. cute but... by commodoresloat · · Score: 5, Informative

    Bad example; when working as a speech-writer for legal disputes, Demosthenes was actually criticized for revealing his arguments to his opponents before trial; though considered unethical at the time, that approach seems pretty consistent with open source. He also published all of his speeches so that students could learn from them; again, very much an open source practice.

  4. Re:12 months? by reverseengineer · · Score: 5, Informative

    The original Roman calendar had ten months, yes, and actually only covered about 300 days, with most of winter considered off-calendar. However, by tradition, the second Roman king, Numa Pompilius reformed this calendar and added January and February (at the end of the calendar), giving the year 12 months (and so at this time, the names of December, etc. as numbered months still made sense). This was the calendar used (with modifications) from roughly 700 BC to the introduction of the Julian calendar in 46BC. The calendar of Numa Pompilius ended up with some crazy leaps and intercalations to keep it reasonably in line with the solar year, so reform was definitely due.

    In doing so, the Romans consulted with Greek astronomers, who had a lot of data about such things (though the Julian calendar is merely a solar calendar that keeps pretty good time with the moon, and not a true lunisolar calendar like one based on the Metonic cycle would be). Greece at the time of the Antikythera mechanism (about 50-100 years earlier than the Julian reform), had in fact just come under Roman control.

    In addition to reforming the "leap" system, January got pushed to the start of the year, making the "number-names" months no longer descriptive, and the months of Quintilis and Sextilis were renamed for Julius Caesar and Augustus Caesar, respectively.

    --
    "FDA staff reviewers expressed concern about the number of patients who were left out of the study because they died."
  5. Re:Where would we be today? by CrimsonAvenger · · Score: 5, Informative

    It is very telling that the Renaissance only began with the translation of the Bible into a common tongue, instead of being exclusively in Latin - that only priests could read.

    Well, that would certainly be telling. If it were true.

    During the so-called Dark Ages, Latin was the language of educated Christians, just as Arabic was the language of educated Muslims - all REAL scholarship was written in Latin or Arabic (Yah, yah, Hindus used another language for scholarship, but since we're talking "Dark Ages", we're talking Europe), depending on the source. Latin (or Arabic) was not exclusive to the priesthood - it was taught everywhere literacy was taught, as PART of literacy.

    Note that a bit later, French filled a similar role - it was the Lingua Franca for any person who laid claim to education. Still later, English has taken up that role, which is perhaps why you didn't understand the relation between Latin and Education - you grew up speaking the modern equivalent of Latin.

    --

    "I do not agree with what you say, but I will defend to the death your right to say it"
  6. Re:Where would we be today? by mdmkolbe · · Score: 5, Informative

    Wasn't it a mob of rabid Christians that finally succeeded in destroying the great library of Alexandria?

    We don't know. The Wikipedia page lists at least four theories about how or when the library was destroyed. Two are due to conquests by the Roman Emperor, one due to conquest by Muslims and one by Christians when the pagan temples were ordered destroyed by the Roman Emperor.

  7. Re:Where would we be today? by giorgist · · Score: 5, Informative

    Amm ... look up Byzantium. It never saw a dark ages but continued to creat and inovate.

    The Renaissance was in part as a result of the sacking of Kostantinopole were phylosophers and scientists had to flee to Italy.

    The Bible and espcialy the new tesament was written in Greek the language of teh Byzantium as opposed to Latin.

    G