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Originally posted by Integral
The vapors resulting from this chemical reaction contain many atoms with electrons in highly excited orbitals. Flames are the visible light emitted by these electrons decaying to lower energy levels. This also explains why different chemicals (materials) have different color flames. The flame colors are determined by the chemical composition of the burning material.
Originally posted by Integral
The dependence of the emitted wavelengths on the chemical is a result of Quantum Mechanics. Every element has a given electron structure, this structure determines the wavelengths that are emitted as electrons cascade to lower energy levels.
Originally posted by losang
In that case the question should have said 'how do you explain fire from a physicists point of view?' or something similar.
Originally posted by losang
Fire is that which is hot and burning. Why do you need to explain it in terms of atoms and electrons. Do you think that cave men didn't know what fire was?
Your finger is not burning because if you remove it from the stove it does not have the ability to maintain the heat. It is only experiencing the pain from touching the hot stove.Originally posted by Integral
This is not an answer to what is fire. When I touch the stove top my finger is hot and burning, so does that mean my finger is fire?
Sure Cavemen knew, they thought it was "Hot and Burning"...but the Question was: "What E-X-A-C-T-L-Y is it" hence the obvious request of a "detailed (more then cave knowledge) responce" cause clearly the cavemen/women DID NOT know the explanation Integral has given...leading edges of knowledge...Originally posted by losang
(SNIP) Do you think that cave men didn't know what fire was? (SNIP)
Here is the trouble with your definition, we have different ideas of what burning means. You have NOT defined the key concept. Just ASSUMED it means the same to you as to everyone else. When I have been in the sun to long I get a sun burn, the skin continues to feel hot and burning for hours after I get out of the sun. Now, what do you mean by hot? What do you mean by burning? Your definition does not provide an answer. Only more questions.Originally posted by losang
Your finger is not burning because if you remove it from the stove it does not have the ability to maintain the heat. It is only experiencing the pain from touching the hot stove.
It does provide an answer. It answers the question of what is fire. Just because questions arise about the meaning of words in the definition does not negate the fact that it answered a question.Originally posted by Integral
Here is the trouble with your definition, we have different ideas of what burning means. You have NOT defined the key concept. Just ASSUMED it means the same to you as to everyone else. When I have been in the sun to long I get a sun burn, the skin continues to feel hot and burning for hours after I get out of the sun. Now, what do you mean by hot? What do you mean by burning? Your definition does not provide an answer. Only more questions.
Sure feels like its burning to me. The sensation hasn't changed, so how do I know it isn't burning anymore?Originally posted by losang
Your finger is not burning because if you remove it from the stove it does not have the ability to maintain the heat. It is only experiencing the pain from touching the hot stove.
I realize you're new here, but how did you miss the name of the forum? In any case, we do have a philosophy forum here - perhaps you'd be more comfortable there.In that case the question should have said 'how do you explain fire from a physicists point of view?' or something similar.
A flamethrower is a squirt gun with a lighter in front of it. They squirt a flammable liquid (probably something similar to napalm). definition does not negate the fact that it answered a question.How do they make flamethrowers?
Again you show your limited understanding of both physics and philosophy and I accept neither. In both disciplines there are times when the evidence presented is based on proof and times when it is not. Your generalization of physics as requiring substantiable proof and philosophy not is too broad a generalization to hold everywhere.Originally posted by Mr. Robin Parsons
Yup! DIFFERENT METHODS!...physics requires substantiable proofs, Philosophy, NAH!...BIG DIFFERENCE! (this, apparently, you couldn't figure out!)
Fire is typically started by a combination of heat, fuel, and oxygen. This is known as the fire triangle. When these three elements are present in the right proportions, a fire can ignite and continue to burn.
The physical properties of fire include heat, light, and the ability to consume and destroy materials. Fire also produces smoke and can spread quickly if not controlled.
Fire spreads through a process called convection, where hot air rises and carries the flames and heat to other areas. It can also spread through radiation, where the heat and light from the fire travels in straight lines, and conduction, where heat is transferred through direct contact.
The temperature of a fire can vary depending on the fuel source, but it typically ranges from 600-1200 degrees Fahrenheit. However, some fires can reach temperatures as high as 2000 degrees Fahrenheit.
No, fire cannot exist in space because there is no oxygen to fuel it. In order for fire to burn, it needs oxygen, which is not present in the vacuum of space.