February 28, 2020, 05:11:31 PM
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Topic: Scorch pattern - What is this?  (Read 3235 times)

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Offline horo1988

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Scorch pattern - What is this?
« on: November 05, 2007, 06:10:48 PM »
I did this experiment and have no clue what they r trying to teach me.

-Light your candle, and allow it to burn for 1 minute.
-Quickly lower a white 3" x 5" index card (held horizontally) down into the candle flame.
-Hold the card in this position until the upper side of the card begins to scorch, but not until it catches on fire. Hold it steady.
-If it does catch on fire, place the burning index card in a beaker, and try again with a new card.
Note the scorch pattern on top of the card.

Source: nasaexplores.com
All I saw was a yellowish brown circle on the card.

Can somebody please give me some hints? What r they trying to show us? :-\

Offline agrobert

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Re: Scorch pattern - What is this?
« Reply #1 on: November 05, 2007, 07:43:50 PM »
I would assume they want you to understand how the flame has different concentrations of heat that dissipate along a radius as you leave the center of the flame.
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

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