One of my hairs is order of magnitude 100 microns in diameter,

我一根头发的直径是100微米
and that's a ratio of 10^5. Right?

两者之比为10的5次方对吗
So 10^5 of my hairs sideways would go across this room.

10的5次方根头发并排将横跨整个房间
So that's a lot. Right?

这是很大的数目对吗
But it's not impossible to

但是将头发串起来或者并排
think of lining up hairs to go across the room,

穿过整个房间
or putting them side by side.

并不是不可能的想法
It'd take a while,

这可能需要花些时间
but it's not impossible to think about that,

但是将头发与屋子比较
a hair compared to the room. Right?

并不是不可能的想法对吗
But a molecule is about a nanometer,

但是一个分子约为一纳米
and a small atom is about 1/10 of a nanometer, or an angstrom.

一个小原子约为十分之一纳米或一埃