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The magical spiral

A metal spiral is placed in the flame of a candle.


Thereupon the flame extinguishes. Once the sprial is pulled away from the candle the flame starts burning again.

How is that possible?

There are tips to solve the problem behind the buttons on the right. Choose one of them. You may also use several tips one after the other.

Helpful hints
One hot thing
We want to examine different materials.
A light is burning
But what is burning exactly?
The test laboratory
...this is getting hot!
No clue yet?
Let's take a look at the phenomenon together.
This could be useful... can find important physical backround knowledge in the toolbox.