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formulas in the field

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Comments

  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,241
    Do you ever get the feeling that every generation goes through this? The older sages looking at the new generation, vexed at how much has been lost? Unfathomably wondering at how much stupider we've become?
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • Mark Eatherton
    Mark Eatherton Member Posts: 5,859
    Roll your own. I understand the need for basic math skills and in fact required my students to manually do things like calculate heat loss (A/R *DT) but explain to them that software is a time saver, and that too is important. In today's cell phone technology, you can get free spread sheet apps that will crunch. The numbers for you at light speed, but beware of GIGO, garbage in = garbage out.

    Many formulas are available from engineering toolbox.com

    And I completely agree with the premise that today's kids are not being taught correctly. They will be lost when the first magnetic pulse bomb goes off and their calculators go blank...

    ME

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