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originally posted by: Phage
a reply to: bloodymarvelous
Beer is food.
Actual beer, I mean.
originally posted by: bloodymarvelous
I was looking into the possibility of perhaps superheating the granite to more than 300 degrees C, and then pouring water onto it. And I stumbled on to this fun fact:
www.chegg.com...
Apparently the melting point of wet granite is 950 degrees C at sea level. The melting point of copper is 1084 degrees C.
So, if they could make a fire hot enough to melt copper, it would also be hot enough to melt wet granite.
originally posted by: dragonridr
a reply to: Harte
You can melt granite you get obsidian when you do.But wouldnt really be good at cutting it.
originally posted by: bloodymarvelous
The AE didn't have glass for true Freznel lens, but I wonder if you can do the same thing with mirrors?
According to wiki, gold is a good reflector for Infrared light, if you want to heat something up. I suspect copper probably is too, because like gold it doesn't get the higher "blue" end of the visible spectrum, but its frequency band isn't mentioned in the article.
en.wikipedia.org...
The AE had to have mirrors of some kind or another, because there isn't really any other explanation for how they got light down into the tombs in the valley of the Kings to do their carvings. (Unless you favor "light bulb" theory, which is more keeping with ATS spirit.)
originally posted by: bloodymarvelous
The AE didn't have glass for true Freznel lens, but I wonder if you can do the same thing with mirrors?
According to wiki, gold is a good reflector for Infrared light, if you want to heat something up. I suspect copper probably is too, because like gold it doesn't get the higher "blue" end of the visible spectrum, but its frequency band isn't mentioned in the article.
en.wikipedia.org...
The AE had to have mirrors of some kind or another, because there isn't really any other explanation for how they got light down into the tombs in the valley of the Kings to do their carvings. (Unless you favor "light bulb" theory, which is more keeping with ATS spirit.)