solar water heater
Hi all, I bumped into this today. Looks interesting. solar water heater
Forum Discussion
I'm sure metric has its virtues. I do remember an LOL at the local hardware store guy who said he now had "metric yardsticks' for sale.
You do know that Napoleon screwed up the kilometre because the Earth is not spherical? The nautical mile, ISTR, is taken at one minute of latitude at 48N. The Earth is fatter to the South (pear shaped) so you have to pick somewhere and go with that.
Solar must be different "Down Under"
You do know that Napoleon screwed up the kilometre because the Earth is not spherical? The nautical mile, ISTR, is taken at one minute of latitude at 48N. The Earth is fatter to the South (pear shaped) so you have to pick somewhere and go with that.
Solar must be different "Down Under"
