Another Indian astronomer and mathematician, Brahmagupta estimated in the 7th century that the circumference of the earth was 5000 yojanas.

另一位印度 天文学家和数学家，巴马加塔（婆罗门加塔）在公元七世纪计算了地球周长大约是5000瑜伽纳斯。

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Another Indian astronomer and mathematician, Brahmagupta estimated in the 7th century that the circumference of the earth was 5000 yojanas.

另一位印度 天文学家和数学家，巴马加塔（婆罗门加塔）在公元七世纪计算了地球周长大约是5000瑜伽纳斯。

youdao