揽瓜阁做题小分队 第12天 预测日食装置-第一台模拟计算机

B及站士

P1. 安堤基特拉機械(後面簡稱安機)在1901發現, 是古希臘人用來預測日蝕的工具, 功能十分的準確
P2. 講述現代科學家對日蝕有更多的瞭解,但那是基於科技的改良觀測到的。對比古時的人們只能觀測夜空, 安機在大多數範圍下都很準確(只有38度不準確)
P3. 新的研究表示安機是西元前205年的產物, 基於巴比倫數學而非希臘三角學 -> 故支持安機是阿基米德發明的說法
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P1.
1. Context: “The Antikythera Mechanism” discovered in 1901 – Ancient Greeks to predict solar eclipses
2. Elaborate:
a fixed ring dial & an inner ring– the Egyptian calendar & the 12 zodiac signs
bronze gears – the motions of the Moon – elliptical orbit around the Earth
3. Intermediate: “The Antikythera Mechanism” – accurately predicting lunar and solar eclipses and thier positions – one of science’s great puzzles to this day

P2
1.Modern scientists: understand much more about the orbital revolutions that cause solar eclipses to occur
2. Example:
the Earth’s orbit around the Sun is elliptical – the Earth is traveling nearer to or farther from the Sun
the plane of the Moon’s revolution ≠ the plane of the Earth’s revolution – solar eclipse prediction needs three dimensions
3. Comparison: modern times (high-tech equipment) vs. the Antikythera Mechanism (observation of the night sky) -> though inaccurate by up to 38 degrees , the device is still accurate over a wide range of conditions

P3
1. Recent analysis: the eclipse prediction mechanism – based on Babylonian arithmetical methods (not from Greek trigonometry)
2. Conclusion: this conjecture – support the claims that Archimedes created the mechanism (Greek trigonometry was nonexistent in 205 BC)

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文章结构：
P1:AM的由来、作用机理
P2:当代设备测量日食、AM一定的准确性得到证实
P3：eclipse prediction mechanism的确定时间
ABEC