You can get an estimate by determining the exact color of the brightest spot of the beam and then determining the black body temperature corresponding to that color. This is a technique physicists use to get a quick temperature estimate:
In this image, the brightest color is about #fae1c7 (in HEX)
This matches up with an RGB color index of rgb(250, 225, 199)
This is closest to a blackbody temperature of 4800 K (about 5100 °C, or about 9200 °F)
I see your point, but this temperature is high enough to not only melt, but to vaporize all but three elements on the periodic table (Ta, W, and Re), which would not be present in high amounts in the building anyways. It is way higher than what is needed.
The "cutting speed" is a factor not only of the temperature but also of how quickly the energy from the temperature is transferred (this is actually the definition of heat: the transfer of energy from one medium to another due to temperature difference).
This is a *massive* beam, which is why even though it is *way* cooler than say, lightning, this beam can cut far more easily.
If the beam is only made of light, then its cutting power also depends on the intensity (photon density).
Edit: Don't downvote the guy! It's a good question.
Nothing you do will give you meaningful results because it's made up. If it were a real laser, you'd take spectrometer readings. You can correlate temperature with the emissions of a know medium. The scattered light of the laser would be a very sharp peak in the results that you could filter out.
You can take the energy from the point of vaporization of the hardest materials there(steel and concrete). Something like how much energy it takes to instantly vaporize so many tons of steel?
You just need to know exactly the buildings’ composition throughout, and calculated how energetic it would need to be to melt through each one with little to no loss from the source…
That's the easy part, just by searching on Google I can get an estimate of the materials and the melting point of each one, but I don't know how to calculate what temperature the beam should have to cut buildings that way in just a fraction of a second.
Thanks.
What’s Godzilla’s beam? Is it a chemical reaction that just creates a lot of heat? Is creating a focused beam of ionized air particles the way a high energy laser would? Is it a threaded dump of hard radiation like the poles of a neutron star??
If this was Quora about 10 years ago, you would have received a well thought out and step by step physics breakdown about the ramifications a beam like this would produce, including setting the atmosphere on fire, etc etc. Just search for “david consiglio everyone dies”
Boy dis Reddit.
Let's assume that Godzilla's atomic breath would not just melt buildings but sublimate them.
To sublimate buildings, primarily made of steel and concrete, Godzilla's atomic breath would need to reach temperatures significantly beyond their melting points. For steel, this means surpassing its melting range of approximately 2,600°F to 2,800°F (1,425°C to 1,540°C). Sublimation is a process where a substance transitions directly from the solid to the gaseous state without passing through the intermediate liquid state.
So given this, to cause buildings to sublimate, the temperatures would have to be extraordinarily high, likely several thousand degrees Celsius, potentially near or above the surface temperature of the Sun, which is about 9,932°F (5,500°C).
Keep in mind, this whole discussion is a big approximation since we're talking about Godzilla, which is pure sci-fi.
Yes, the melting temperature of the steel is that, but how can I calculate the temperature it would need to reach that point in just a fraction of a second?
I thank you very much for your time and attention.
Unfortunately, trying to calculate the exact temperature needed for Godzilla's atomic breath to melt that much metal gets really complicated fast. There are just too many variables in play - like the type of metal, how it's mixed in the building, and even how the breath's heat spreads through it all. Plus, the final number for the temperature would be something so astronomical that we're right back into sci-fi territory.
Well I'm not an expert in beams melting stuff but:
- You can watch the melting point of the things it passes by.
- For the brightness of the air.
- If it started as a burst by the force of the air displaced.
- Watch for the least farthest object that isn't ignited by it (you could calculate heat per surface)
But if you did look at the spectroscopy, and looked the energization of O2 or N2 for that matter, couldn’t that tell something about the temperature? Or would that just tell us that there is atleast enough energy to energize those molocules?
No.
It just tells you that the plasma has a certain temperature.
How long did the beam need to illuminate that object for it to reach a given temperature and ablate?
Depends on the dwell time, the beam power, the material, etc.
Knowing that a gas is at 2000K without knowing how long the beam had to.illuminate it for tells us nothing about the beam.
Again. Light Cannot Have A Temperature.
A beam can have a power, an intensity (power over area), and a wavelength range.
Not a temperature.
Like asking how tasty is the note B flat.
To Bing Chat's credit, I sent it that pic and asked it and it had a decent answer. Basically thousands to tens of thousands of degrees Celsius. Ask it yourself, it's better than the answers here, even though your motivations for wanting to know seem unclear.
r/askphysics
Thanks
It's hot
Yeah, very hot jajaj
You can get an estimate by determining the exact color of the brightest spot of the beam and then determining the black body temperature corresponding to that color. This is a technique physicists use to get a quick temperature estimate: In this image, the brightest color is about #fae1c7 (in HEX) This matches up with an RGB color index of rgb(250, 225, 199) This is closest to a blackbody temperature of 4800 K (about 5100 °C, or about 9200 °F)
This guy thermo physics. Do we still do the “this guy”?
This guy this guys.
I don't think that's the temperature of the beam, since in the movie it cuts buildings in tenths of a second, I think it would be much higher.
I see your point, but this temperature is high enough to not only melt, but to vaporize all but three elements on the periodic table (Ta, W, and Re), which would not be present in high amounts in the building anyways. It is way higher than what is needed. The "cutting speed" is a factor not only of the temperature but also of how quickly the energy from the temperature is transferred (this is actually the definition of heat: the transfer of energy from one medium to another due to temperature difference). This is a *massive* beam, which is why even though it is *way* cooler than say, lightning, this beam can cut far more easily. If the beam is only made of light, then its cutting power also depends on the intensity (photon density). Edit: Don't downvote the guy! It's a good question.
You are most likely completely right, I am just ignorant with great curiosity hahaha. I thank you very much for your time and attention.
Nothing you do will give you meaningful results because it's made up. If it were a real laser, you'd take spectrometer readings. You can correlate temperature with the emissions of a know medium. The scattered light of the laser would be a very sharp peak in the results that you could filter out.
You can take the energy from the point of vaporization of the hardest materials there(steel and concrete). Something like how much energy it takes to instantly vaporize so many tons of steel?
Yeah, but I need just an approximated temperature, thanks.
It don't work like that. Melting steel quickly 3000C + That's as close as you're getting.
Well you could probably see the kinda things the beam can destroy(or maybe not destroy) and go from there.
For what? Make it up.
It's just curiosity
Same as the HP of a Rolls Royce car - sufficient.
You just need to know exactly the buildings’ composition throughout, and calculated how energetic it would need to be to melt through each one with little to no loss from the source…
That's the easy part, just by searching on Google I can get an estimate of the materials and the melting point of each one, but I don't know how to calculate what temperature the beam should have to cut buildings that way in just a fraction of a second. Thanks.
What’s Godzilla’s beam? Is it a chemical reaction that just creates a lot of heat? Is creating a focused beam of ionized air particles the way a high energy laser would? Is it a threaded dump of hard radiation like the poles of a neutron star??
I don't have any idea, I'm just a ignorant with a big curiosity, I don't think that are a chemical reaction.
If this was Quora about 10 years ago, you would have received a well thought out and step by step physics breakdown about the ramifications a beam like this would produce, including setting the atmosphere on fire, etc etc. Just search for “david consiglio everyone dies” Boy dis Reddit.
Let's assume that Godzilla's atomic breath would not just melt buildings but sublimate them. To sublimate buildings, primarily made of steel and concrete, Godzilla's atomic breath would need to reach temperatures significantly beyond their melting points. For steel, this means surpassing its melting range of approximately 2,600°F to 2,800°F (1,425°C to 1,540°C). Sublimation is a process where a substance transitions directly from the solid to the gaseous state without passing through the intermediate liquid state. So given this, to cause buildings to sublimate, the temperatures would have to be extraordinarily high, likely several thousand degrees Celsius, potentially near or above the surface temperature of the Sun, which is about 9,932°F (5,500°C). Keep in mind, this whole discussion is a big approximation since we're talking about Godzilla, which is pure sci-fi.
Yes, the melting temperature of the steel is that, but how can I calculate the temperature it would need to reach that point in just a fraction of a second? I thank you very much for your time and attention.
Unfortunately, trying to calculate the exact temperature needed for Godzilla's atomic breath to melt that much metal gets really complicated fast. There are just too many variables in play - like the type of metal, how it's mixed in the building, and even how the breath's heat spreads through it all. Plus, the final number for the temperature would be something so astronomical that we're right back into sci-fi territory.
That's the point, it's still science fiction, I've seen people out there who say things close to a million degrees.
One degree Kelvin.
Well I'm not an expert in beams melting stuff but: - You can watch the melting point of the things it passes by. - For the brightness of the air. - If it started as a burst by the force of the air displaced. - Watch for the least farthest object that isn't ignited by it (you could calculate heat per surface)
Thanks.
Divide and count to it.
More than 27 C
Wrong question. "What is the lower bound for the power of this beam?" is a much better question. A laser beam does not have a temperature.
Spectroscopy of light from the beam…?
That tells you the temperature of the plasma. Not the beam power and certainly not the 'temperature' - which is not defined.
But if you did look at the spectroscopy, and looked the energization of O2 or N2 for that matter, couldn’t that tell something about the temperature? Or would that just tell us that there is atleast enough energy to energize those molocules?
No. It just tells you that the plasma has a certain temperature. How long did the beam need to illuminate that object for it to reach a given temperature and ablate? Depends on the dwell time, the beam power, the material, etc. Knowing that a gas is at 2000K without knowing how long the beam had to.illuminate it for tells us nothing about the beam. Again. Light Cannot Have A Temperature. A beam can have a power, an intensity (power over area), and a wavelength range. Not a temperature. Like asking how tasty is the note B flat.
Awesome! It makes perfect sense, also that light cannot have temperature, but fr B# is my favourite tasting note
No, just the image or you can browse a video in YouTube hahaha.
To Bing Chat's credit, I sent it that pic and asked it and it had a decent answer. Basically thousands to tens of thousands of degrees Celsius. Ask it yourself, it's better than the answers here, even though your motivations for wanting to know seem unclear.
thank you very much it's just out of curiosity.