Can fire cast a shadow?

neilep · « **on:** 16/12/2019 13:40:24 »

Dearest Fireologists,

As a sheepy I of course know almost everything there is to know but one thing that eludes me is whether fire can have a shadow !

look , here's some fire being all firey !!

Fire Being All Firey Yesterday

As ewe can see, ewe can not see through it, so, if I was to shine a big enough torch at it would it make a shadow on the other side ? i'm curious because i can't see through it yet it's a source of light !!

whajafink ?

Can A Fire Have A Shadow ?

Hugs and shmishes

mwah mwah !!

Neil
"This girl is on fire !
OUCH Oooh OUCH !!"

Halc · « **Reply #1 on:** 16/12/2019 13:49:45 »

Fire very much does block some light as it consists of glowing particles in part. Other light gets deflected by the heat, but that effect will not produce a crisp shadow.

So put a spotlight to the side of a fire and it will indeed cast a shadow on a wall on the opposite side.

neilep · « **Reply #2 on:** 16/12/2019 14:17:03 »

Quote from: Halc on 16/12/2019 13:49:45

Fire very much does block some light as it consists of glowing particles in part. Other light gets deflected by the heat, but that effect will not produce a crisp shadow.

So put a spotlight to the side of a fire and it will indeed cast a shadow on a wall on the opposite side.

This is very interesting.....next time I flambe I will check for shadows

Bored chemist · « **Reply #3 on:** 16/12/2019 19:31:43 »

In the right conditions you can analyse what's in the flame by looking at the shadow.
https://en.wikipedia.org/wiki/Atomic_absorption_spectroscopy#Flame_atomizers

chris · « **Reply #4 on:** 16/12/2019 22:47:22 »

Hi Neil

We did this kitchen science experiment on dark flames on the radio show; it deals with some aspects of your query.

We also did this experiment to show CO2 casting a shadow owing to the effects of refraction. This is also relevant to the question you are asking.

neilep · « **Reply #5 on:** 18/12/2019 16:40:17 »

Quote from: Bored chemist on 16/12/2019 19:31:43

In the right conditions you can analyse what's in the flame by looking at the shadow.
https://en.wikipedia.org/wiki/Atomic_absorption_spectroscopy#Flame_atomizers

That is fascinating, thanks BC.

neilep · « **Reply #6 on:** 18/12/2019 16:42:28 »

Quote from: chris on 16/12/2019 22:47:22

Hi Neil

We did this kitchen science experiment on dark flames on the radio show; it deals with some aspects of your query.

We also did this experiment to show CO2 casting a shadow owing to the effects of refraction. This is also relevant to the question you are asking.

Hi Chris,

Outstanding. Thank you very much. Love the kitchen science and CO2. Great stuff.

tanya5iews · « **Reply #7 on:** 23/12/2019 09:56:41 »

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Colin2B · « **Reply #8 on:** 23/12/2019 11:01:32 »

Quote from: tanya5iews on 23/12/2019 09:56:41

Thanku so much for this.

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hamdani yusuf · « **Reply #9 on:** 26/12/2019 06:24:01 »

Here is another demonstration of black fire I found in YT.

Bored chemist · « **Reply #10 on:** 31/12/2019 13:25:06 »

That guy is mainly wrong.

hamdani yusuf · « **Reply #11 on:** 05/01/2020 08:30:04 »

Quote from: Bored chemist on 31/12/2019 13:25:06

That guy is mainly wrong.

Which part he gets it wrong? What's the right explanation?

dizka · « **Reply #12 on:** 07/01/2020 11:10:29 »

Is there a shadow without light?

hamdani yusuf · « **Reply #13 on:** 08/01/2020 03:19:27 »

Quote from: dizka on 07/01/2020 11:10:29

Is there a shadow without light?

no

Petrochemicals · « **Reply #14 on:** 09/01/2020 18:03:18 »

So soot basically ?

Callumbryne · « **Reply #15 on:** 18/02/2020 10:30:12 »

This can be seen clearly in the above demonstration video that by playing with light you can make the fire dark enough that it really looks like the black fire. But there is no such thing like black fire its just a game with the atmospheric colors but the one thing that is clearly original and worth trying is write my assignment for cheap service! Try it once then let me know how much you like the service.

Colin2B · « **Reply #16 on:** 18/02/2020 12:09:21 »

Quote from: Callumbryne on 18/02/2020 10:30:12

This can be seen clearly in the above demonstration video that by playing with light you can make the fire dark enough that it really looks like the black fire. But there is no such thing like black fire its just a game with the atmospheric colors but the one thing that is clearly original and worth trying is write my assignment for cheap service! Try it once then let me know how much you like the service.

It would help if you could write good english.
You failed the test and are hereby expelled.

Karen W. · « **Reply #17 on:** 26/02/2020 04:22:27 »

Great question and great experiments Chris...Thank you guys...

simplex · « **Reply #18 on:** 29/02/2020 20:41:35 »

The fire is a mixture of atoms and ions that emits light but like any gas can also absorb light and so a fire casts a visible shadow especially if it is illuminated with a source of light that emits a color or colors that are well absorbed by the ionized gas called fire.

LILJumbo · « **Reply #19 on:** 27/03/2020 12:26:54 »

In the upper layers of the emitted gas, soot is created, and it can cast a shadow.

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Can fire cast a shadow?

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