Steels are known by certain tests. Early tests were more or less crude, and depended upon the ability of the workman to judge the grain exhibited by a freshly broken piece of steel. The cold-bend test was also very useful--a small bar was bent ... Read more of Properties Of Steel at Steel Making.caInformational Site Network Informational
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A TENNIS TOURNAMENT.





(Combination and Group Problems)
Four married couples played a "mixed double" tennis tournament, a man
and a lady always playing against a man and a lady. But no person ever
played with or against any other person more than once. Can you show how
they all could have played together in the two courts on three
successive days? This is a little puzzle of a quite practical kind, and
it is just perplexing enough to be interesting.


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Next: THE WRONG HATS.

Previous: A PUZZLE FOR CARD-PLAYERS.



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