And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Wednesday, April 11, 2018
Hot Balls
Steel glowing hot. Several thousand degrees and slowly cooling, these spheres will become part of a pair of candle holders.
Don in Oregon already covered the temperature,I worked 18 years in a steel forge plant,& for a time operated both forge furnace & an annealing furnace. Saw that coloration often.
Melting point of steel, approx 2700F.
ReplyDeleteCherry red, approx 1500F.
http://www.smex.net.au/reference/SteelColours02.php
Don in Oregon already covered the temperature,I worked 18 years in a steel forge plant,& for a time operated both forge furnace & an annealing furnace. Saw that coloration often.
ReplyDelete