檢視較大的地圖

1-前言-4

Here is another example.Fold a piece of paper in half to double its thickness.If you could continue doubling the thickness of the paper 42 times,the stack would reach from the earth to the moon-386,400 kil0meters(240,000miles)away.If you could double it 50 times,the folded paper would almost reach the sun-149 million kilometers(93 million miles)away!


這是另一個例子。摺疊一張纸在一半的加倍它的厚度 。如果您可能持续加倍本文的厚度42次，這個厚度將從地球將到達到月亮386,400公里(240,000公里)。如果您可能持续加倍本文的厚度50次，這個厚度從地球將到達到月亮149百萬公里(93百萬英里)。