Almost everyone who hasn't heard this before is surprised when they hear that if you take a 0.1 millimeter thick sheet of paper, the size we normally use, and, if it were big enough, fold it 50 times, its thickness would extend almost the distance from the Earth to the sun.
初めて聞かれた方は たいてい驚かれますが 通常使うサイズの 0.1ミリの厚さの紙１枚を用意して 50回折った場合 それが十分な大きささえあれば その厚みは 地球と太陽の距離くらいになります