ملف:Britannica Figure of the Earth.jpg

محتويات الصفحة غير مدعومة بلغات أخرى.
من ويكيبيديا، الموسوعة الحرة

الملف الأصلي(525 × 907 بكسل حجم الملف: 84 كيلوبايت، نوع MIME: image/jpeg)

ملخص

الوصف
English: A meridian arc extending from the Shetland Islands, through Great Britain, France and Spain to El Aghuat in Algeria, whose parameters were calculated from surveys carried out in the mid to late 19th century. It yielded a value for the equatorial radius of the earth a = 6 377 935 metres, the ellipticity being assumed as 1/299.15. The radius of curvature of this arc is not uniform, being, in the mean, about 600 metres greater in the northern than in the southern part. The Greenwich meridian is depicted rather than the Paris meridian.
التاريخ
المصدر Encyclopædia Britannica, 1911
المؤلف Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg

ترخيص

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الشروحات

خط غرينيتش يمتد من جزر شيتلاند، عبر بريطانيا العظمى وفرنسا وإسبانيا إلى الأغواط في الجزائر،

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حالي16:46، 19 فبراير 2011تصغير للنسخة بتاريخ 16:46، 19 فبراير 2011525 × 907 (84 كيلوبايت)Keith Edkins=={{int:filedesc}}== {{Information |Description={{en|A meridian arc extending from the Shetland Islands, through Great Britain, France and Spain to El Aghuat in Algeria, whose parameters were calculated from surveys carried out in the mid to late 19th cen

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