Recent content by Wisco52

  1. W

    What does a circle with a slash through it mean?

    Makes sense, thanks.
  2. W

    What does a circle with a slash through it mean?

    I am reading European engineering publications, and the circle with a slash shows up about half of the time in front of length measurements. For example, Ø15 x 1.12 mm. What does this mean?
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    Does thermal radiation occur within a material?

    Homework Statement I am doing an assignment with multiple heat transfers, and have to investigate the effects of including thermal radiation vs saying that thermal radiation is negligible. I know that the equation for thermal radiation is q = A*σ*(T14 - T24) (*) In my case the equation...