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<DIV>Dear Randy,</DIV>
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<DIV>Thank you for your explanation. I will be very interested to know the
result if you can do the experience with another fluid.</DIV>
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<DIV>And I have a question on the experiment you did. You write :</DIV>
<DIV>> page 298 : copper tubes ½ inch (= 1.27 cm)</DIV>
<DIV>> page 298 : the tubes were five feet long with an internal diameter of
1.27 cm.</DIV>
<DIV>> page 301 : the characteristic length or diameter of the pipe X =
2.54 × 10-2 m </DIV>
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<DIV>Which internal diameter did you use ? 2.54 or 1.27 cm ?</DIV>
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<DIV>Thank you, and best regards</DIV></DIV></DIV></BODY></HTML>