Pouring Temperature vs Melting Temperature

I was recently sent some documentation on a small electric furnace for melting and heat treating metal which is of a good size for hobbiests but still a lot more expensive than building your own charcoal furnace. One of the
Environmental Monitoring With Arduino

Since Harold Hall sent through his thoughts on rust, I’ve been thinking about monitoring temperature and humidity in the workshop which in turn will allow me to work out what I can do to improve conditions in there. I already
Waterproof Screws

I’ve been reading “South” – The Story of Shackleton’s 1914-1917 Expedition. The environment that the men and their equipment had to survive is one of the harshest in the world, temperatures significantly below zero, high winds, salt water and confined