[www] Updated time estimate to use Newton's law of cooling instead of assuming linear heating.

[DavidPagels]

[DavidPagels]

Currently smoking a pork butt with an alarm set at 170.

• Estimates at 9:44am with current temp of 115 and 1 hour difference of 31 degrees is:
  • Linear: 11:30am.
  • NLC: 12:16pm.
• The updated estimates at 10:55am with current temp of 143 and 1 hour difference of 23.5 degrees is:
  • Linear: 12:04pm
  • NLC: 12:22pm.

It'll probably stall out by then due to evaporative cooling, but should be more accurate nonetheless. Ended up wrapping and putting it in the oven at 1:00pm when it was 165.

[CapnBry]

I haven't had a chance to review this (or experiment with it) but it is on my TODO list. Will get to it!