I thought this was hilarious.

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The engineering department of a defense plant at Newburgh, New York, has been experimenting with steel wire, drawing it out very fine. They finally produced a piece of 120-gauge wire — practically invisible. The boys were proud — so proud, in fact, that they cut off a strand and sent it to a rival Japanese defense plant. “This is just to show you what we are doing in Newburgh,” they wrote.

Weeks went by. Recently, a package arrived at the Newburgh plant. The boys opened it with great care. Inside was a steel block; mounted on the block were two steel standards, and strung between them was the same piece of 120-gauge wire. At one end of the block was mounted a small microscope delicately focused on a certain spot on the wire. One by one the engineers placed an eye to the microscope and examined in silence the work of their rivals, who had bored, in the wire, a rather handsome little hole!
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