I wrote:
> Jones Beene <jone...@pacbell.net> wrote: > > >> Geeze you are sounding almost as bad as Levi - in not seeing the obvious >> ... “about the same” is absurd, given what happens later. The difference >> between 486 and 790 is enormous when the delta-T is being raised by a >> formula which includes a fourth power (Stefan–Boltzmann law) >> > > The temperature was also measured with a thermocouple, as noted. > Ah, but your point is that even if the the temperature is measured correctly, may not reflect the power correctly. That would be a rewrite of the textbooks. In any case, a temperature calibration curve goes down, not up, at higher power levels. At 486 W the temperature was 437°C. At 786 W it went up to 1240°C. No matter how you look at it, it should have been reasonably proportional, and no higher than ~750°C. Unless they were pouring ice water on the thing during calibration, or a blast from a fan, there is no way it could go so much higher with only 1.6 times more power. (Those numbers are Tables 3, 6 and 7.) - Jed
