"U" and "I" are Always Together

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Feb 25, 2012 20:43
"Every time I look at the keyboard, I see that U and I are always together".
Just now I read the above joke about the keyboard.
I have never noticed this interesting thing before.
This joke is really funny although it's only one sentence, isn't it?
Some time ago I read a popular science paper, which explored the evolutionary history of the keyboard.
Keyboard was invented almost three hundred years ago.
Various kinds of keyboards were figured out in history. However few of them survived.
Most of us use all of fingers to type. However, some people are too old to learn it. Unfortunately they get used to type with two forefingers.
It was twelve years ago we first learned how to type.
Now I can type without looking at the keyboard.