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View Full Version : What is used in measuring that no one can see or touch?

dancercutiepie
Oct 3, 2010, 01:02 PM
Curlyben
Oct 3, 2010, 01:06 PM
Give me a MINUTE and I'll get back to you.
danielojedal
Feb 9, 2012, 06:44 PM
Time
danielojedal
Feb 9, 2012, 06:45 PM
Time, temperature