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Interesting study demonstrating the lighting of candles in the distance.
You will need:
An ordinary candle
Matches either zapalniczka.
Instruction:
Light Shine.
By a number of seconds. extinguish it.
Now bring a burning fire to heavily smoke emanating from the candle. The candle will once again be in flames.
Explanation
The smoke rising up from gassnova candle includes hexane, which rapidly ignited. Flaming evaporation of paraffin ruin until the wick and the candle begins to burn again.
Source: http://www.infoniac.ru/news/10-interesnyh-eksperimentov-dlya-detei.html