The weather's been extremely nice and working outside is great! Last night David commented on how you go outside and breathe and the air is full and refreshing, rather than brisk and chilly on your lungs.
Today I helped David get started on welding a mount for his debris loader. It'll be a square tubing frame that swings around the side of his box truck to allow the truck box to be unloaded when the back is full.
Dad solved the problem with me and we spent some time going through trigonometry tables proving the math behind the calculator.