It's been a freezing cold day with a lot of heat.
At work today, I solved the heat equation. I try to simulate a stack of sedimentary rocks being heated by the crust below, and how temperature develops through geological time.
When I came back home, I lighted the fireplace to heat the kitchen and the living room. Then I made a hot meal for the kids.
Tomorrow is race day for little boy. This evening, I waxed his skis. It's a long and tedious process to do it properly: First, sharpen the edges with a file. Second, heat the wax with a waxing iron and melt it into the base. Third, scrape of the excess wax. Finally, brush and polish the base. Then the skis are ready for the super-G race.
Now I'm relaxing with a hot cup of tea.
My old lady has been away on a business trip today. When she comes home tonight, I hope the heat is on >;)
(I computed the plot above at work today. It shows the diffusion of heat from below through a package of sedimentary rocks. After 50 million years, hot magma intrudes the sediments. The time-step between each temperature curve is 10 million years ... not much God could have done about it in 6 days, and resting on the 7th.)
