The more you know
THE COLOR OF A METEOR
DEPENDS ON ITS CHEMICAL COMPOSITION
ts Iron -3,‘ Sodium
Nitrogen/ Oxygen Calcium Magnesium
DEPENDS ON ITS CHEMICAL COMPOSITION
ts Iron -3,‘ Sodium
Nitrogen/ Oxygen Calcium Magnesium
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69 comments displayed.
#11 to #10
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sickreality (10/21/2015) [-] my avatar is deceiving bro. im a dude. and not a brony. im a normy.
#56 to #11
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bellbottomshark (10/22/2015) [-] **bellbottomshark used "*roll picture*"**
**bellbottomshark rolled image** The roll gods will reveal your true form.
**bellbottomshark rolled image** The roll gods will reveal your true form.
#42 to #23
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sickreality (10/22/2015) [-] i just recently added lizardgirl as my avatar. its acctually my psn name so if you wanna game...
#45 to #8
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urmomsagrot ONLINE (10/22/2015) [-] **urmomsagrot used "*roll picture*"**
**urmomsagrot rolled image**After posting that pic, nobody will.
**urmomsagrot rolled image**After posting that pic, nobody will.
#43
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xtnega (10/22/2015) [-] The different colours of flame are caused by the various elements having different spectral emissions.
Basically, when an electron is imparted with energy (heat, in this case) it jumps up an energy level, then it returns to a lower state by emitting a photon. Depending on how much energy was imparted to the electron, it may only jump up one energy level (and subsequently jump down one) to produce a low-energy photon (red) or it may jump up (and then down) several levels and produce a higher energy photon, like green, blue or violet.
The colour of a photon is determined by it's energy, given by E=hf, where E is the energy of the photon, 'h' is Plank's constant and 'f' is the frequency of the photon. The wavelength is inversely relatede to the frequency by the formula of a wave: c/f = lambda, where c is the speed of light and lambda is the wavelength. This is why red light is produced from the lower energy jumps, it has the longest wavelength and therefore the lowest frequency (and by extension, energy) out of visible light.
Because each element has a different sized atom and different repulsive/attractive forces involved, each element has a unique amount of energy required for electrons to jump up/down energy levels, and therefore each element has a unique set of spectral lines.
Attached is the emission spectrum for some random elements I found on the internet. Notice that sodium has what is called the 'sodium doublet' which dominates it's spectrum, which is why sodium burns with such a yellow flame.
(Extra for experts: If enough energy is imparted to an electron, instead of jumping back down to a ground state, it will actually break free of the nucleus. This is the ionisation of a gas into plasma.)
Basically, when an electron is imparted with energy (heat, in this case) it jumps up an energy level, then it returns to a lower state by emitting a photon. Depending on how much energy was imparted to the electron, it may only jump up one energy level (and subsequently jump down one) to produce a low-energy photon (red) or it may jump up (and then down) several levels and produce a higher energy photon, like green, blue or violet.
The colour of a photon is determined by it's energy, given by E=hf, where E is the energy of the photon, 'h' is Plank's constant and 'f' is the frequency of the photon. The wavelength is inversely relatede to the frequency by the formula of a wave: c/f = lambda, where c is the speed of light and lambda is the wavelength. This is why red light is produced from the lower energy jumps, it has the longest wavelength and therefore the lowest frequency (and by extension, energy) out of visible light.
Because each element has a different sized atom and different repulsive/attractive forces involved, each element has a unique amount of energy required for electrons to jump up/down energy levels, and therefore each element has a unique set of spectral lines.
Attached is the emission spectrum for some random elements I found on the internet. Notice that sodium has what is called the 'sodium doublet' which dominates it's spectrum, which is why sodium burns with such a yellow flame.
(Extra for experts: If enough energy is imparted to an electron, instead of jumping back down to a ground state, it will actually break free of the nucleus. This is the ionisation of a gas into plasma.)
#47
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anon (10/22/2015) [-] Is it bad if I mistook those as spirit stars? Bonkles4lyfe
Click to show spoiler
#50 to #38
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rubiksdodecahedron (10/22/2015) [-] Sodium would be more explosive if it landed in water. Not to mention it could make the water extremely basic depending on the amount of water
#62 to #61
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rubiksdodecahedron (10/22/2015) [-] That and it will dissolve many many things that water normally wouldn't. If strong enough it can dissolve human flesh
#66 to #65
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rubiksdodecahedron (10/22/2015) [-] Caustic and basic are synonymous. I was referring to dissolve and corrode
#68 to #67
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rubiksdodecahedron (10/22/2015) [-] Then maybe I misunderstood what you were trying to say in >>#63
#20 to #17
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selfrazedzealot (10/21/2015) [-]
Meteors are objects that enter earths atmosphere and turn incandescent. Incandescent means emitting light due to heat and since meteors on average reach 3,000 F, I'm willing to bet an ice comet entering earths atmosphere would only be classified as a meteor for a fraction of a second if at all. The only ice "meteor" I can find is balls of ice forming on clear days that drop for unknown reasons and look like hail.
#29 to #17
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RIPphyscovideos (10/21/2015) [-] Comets are the bearers of water, not meteors (at least, the majority of meteors are just rock).
#4
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xalka ONLINE (10/21/2015) [-]
So i guess most meteors contain mainly iron? I've only seen yellow ones.
#49
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limberlarry (10/22/2015) [-]
I'm pretty sure this isnt true, as the flame comes from shock heated air, rather than the meteor itself, and shock heated air is always orange
#34
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uglychino (10/22/2015) [-] Does anybody know what time and where the meteor on Holloween will be visible? I always miss cool **** in our sky most of the time.
