Konnte man früher die Temperaturen von Eisen etc. feststellen?

Konnte man früher, so 1000 n.Chr. und früher schon die Temperaturen von Silber, Gold, etc. feststellen, z.B. die Schmelztemparatir? Wenn ja wie?

(3 votes)
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Spikeman197
1 year ago

You couldn’t. Instead there was ‘experience’!

The gluten color depends on the temperature, as well as the forgedness, or viscosity. With some experience you can easily see whether it is hot enough or not!

Chris428
1 year ago
Reply to  Spikeman197

Also the color of the fire reveals a lot. You’re right.

mihisu
1 year ago

No, because you haven’t had a real temperature concept…

“The concept of temperature developed late, not only because there was a clear conceptual separation between temperature as an intensive measured variable and heat as an extensive size, but also because there were no instruments to measure the temperature (the degree of heat) up to the early modern age. ‘

https://de.wikipedia.org/wiki/Temperature#Definitions_of_temperature

But one could at least find that silver and gold were, for example, easier to melt than iron. [The melting temperatures of silver and gold are lower than those of iron.]

In addition, the forgings had empirical values regarding the color during glowing (for example, that yellow glowing iron is hotter than red glowing iron).

[https://de.wikipedia.org/wiki/Glut_(light radiation))

Dafur
1 year ago

The iron melting point can be taken from the letter columns of the Quran.

We had a good question here some time ago. There was a user.

HeinButschal
1 year ago

Yeah, just not in degrees Celsius or Fahrenheit because they were invented later. But by way of the incandescent color, one could quite exactly determine the temperature just prevailing, at least up to approx. 1200 °C. In addition, for the free eye, every temperature is only white.

Heinrich Butschal

Nofear20
1 year ago

Of course not. One felt to the principle of trial and error.

Tannibi
1 year ago

In the Middle Ages? Never. The blacksmith recognized
the temperature at the color.