Recreations in Mathematics and Natural Philosophy ...G. Kearsley, 1803 - Scientific recreations |
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Common terms and phrases
according altitude angle appear April Asia astronomers axis bissextile calendar calends cent centre Christian æra comets constellations constructed corresponding degrees describe diameter difference disk distance divided division dominical letter draw earth eclipse elevation employed England epact equal equator equinoctial dial equinox example February fixed stars France full moon given globe Gnomonics golden number Gregorian calendar hegira height hemisphere hence horary circles horizontal dial horizontal plane hour-lines indicate intersection January Julian period Jupiter latitude London longitude lunar cycle lunations manner March means merids method miles minutes month moon partial moon total moon's morn motion multiplied node observed orbit parallel passing perpendicular pole PROBLEM proposed radius refraction remainder REMARK revolution Roman calendar Saturn seen shadow shew the hours signs solar cycle sphere style subtract sun's Sunday suppose surface telescope tion toises vertical dial Wedn zodiac