Temperature Conversion
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@Gąska That would distract from posting, though.
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@Gąska said in Temperature Conversion:
@kazitor well, the 0.9c baseball from episode 1 would prevent most of the rest from happening.
Electron moon was kind of a showstopper as well.
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@PleegWat But a great name for a band.
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@Gąska Sadly that xkcd no longer works now that raccoon sex dungeons aren't welcome anymore...
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@JBert I opine that temperature should be measured in feet, vs the heat generating potential of dropping a standard reference anvil in a helium filled chamber at 1 bar.
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@mott555 said in Temperature Conversion:
Ohm's LawNot-Ohm's-Law but I forget the name, where Watts = Volts x Amps (assuming simplistic conditions and direct current).It's a hybrid.
Ohm's Law: V = I × R
Joule's Law: P = I2 × RFactor Joule's Law:
P = (I × R) × IUse Ohm's Law to replace I × R with V:
P = V × IPower (Watts) = Voltage (Volts) × Current (Amps)
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@HardwareGeek said in Temperature Conversion:
@Groaner said in Temperature Conversion:
you can legitimately say that it's five hundred degrees outside.
Eh. 300 is hot enough.
640 K ought to be enough for anybody.
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I've got lured back to this topic by a like, and reading those posts again made me realize I still don't know whether this random Polish guy at the end of that page is correct and there exists a direct conversion between dBm and dBmV, because dBm is based on not 1 milliwatt, but 1 milliwatt over 50 ohms (so 50mV), so it's a unit of voltage too, just like dBmV.
Why are all these units so hard to google up? Is there some secret ISO norm that every electronics engineer must sign NDA before being allowed to obtain a copy?
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@Gąska said in Temperature Conversion:
I've got lured back to this topic by a like, and reading those posts again made me realize I still don't know whether this random Polish guy at the end of that page is correct and there exists a direct conversion between dBm and dBmV, because dBm is based on not 1 milliwatt, but 1 milliwatt over 50 ohms (so 50mV), so it's a unit of voltage too, just like dBmV.
Why are all these units so hard to google up? Is there some secret ISO norm that every electronics engineer must sign NDA before being allowed to obtain a copy?
We can’t tell you unless you sign an NDA.
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@topspin said in Temperature Conversion:
@Gąska said in Temperature Conversion:
I've got lured back to this topic by a like, and reading those posts again made me realize I still don't know whether this random Polish guy at the end of that page is correct and there exists a direct conversion between dBm and dBmV, because dBm is based on not 1 milliwatt, but 1 milliwatt over 50 ohms (so 50mV), so it's a unit of voltage too, just like dBmV.
Why are all these units so hard to google up? Is there some secret ISO norm that every electronics engineer must sign NDA before being allowed to obtain a copy?
We can’t tell you unless you sign an NDA.
You can't say that, you just violated the double-secret NDA about the NDA.
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Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
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@Gąska said in Temperature Conversion:
I've got lured back to this topic by a like, and reading those posts again made me realize I still don't know whether this random Polish guy at the end of that page is correct and there exists a direct conversion between dBm and dBmV, because dBm is based on not 1 milliwatt, but 1 milliwatt over 50 ohms (so 50mV), so it's a unit of voltage too, just like dBmV.
Why are all these units so hard to google up? Is there some secret ISO norm that every electronics engineer must sign NDA before being allowed to obtain a copy?
That's an easy one, yes. But, that resistance is not necessarily a fixed constant. 50 Ohms is the most common in my experience though.
For the work I do where I need to get into dBm's it's always 50 Ohms. If you aren't doing EMC/RF work you'll need to know what the party who provided the measurements had it as.Mostly all my test gear works in dBmV though because it's more convenient for EMC/RF work.
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@sloosecannon said in Temperature Conversion:
Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
That's evil. The question doesn't make sense.
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Did I just find @BernieTheBernie 's coworker?
(If you read the thread from the beginning, it starts with some
stable geniusshitposting artist declaring that "pornhub comes preinstalled on firefox I don't make these rules". The internet is great sometimes.)
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@Khudzlin said in Temperature Conversion:
@sloosecannon said in Temperature Conversion:
Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
That's evil. The question doesn't make sense.
It makes perfect sense if you think in an absolute scale. If you double 0°F, you get 459.67°F.
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@mott555 said in Temperature Conversion:
@Khudzlin said in Temperature Conversion:
@sloosecannon said in Temperature Conversion:
Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
That's evil. The question doesn't make sense.
It makes perfect sense if you think in an absolute scale. If you double 0°F, you get 459.67°F.
Not even then. "Warm" does not refer to thermodynamic temperature.
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@Khudzlin said in Temperature Conversion:
@mott555 said in Temperature Conversion:
@Khudzlin said in Temperature Conversion:
@sloosecannon said in Temperature Conversion:
Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
That's evil. The question doesn't make sense.
It makes perfect sense if you think in an absolute scale. If you double 0°F, you get 459.67°F.
Not even then. "Warm" does not refer to thermodynamic temperature.
And perception of temperature (which is what warm/cold refer to in my dialect) is notoriously full of and idiosyncrasies.
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@Benjamin-Hall , if you will.
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@Zecc said in Temperature Conversion:
@Benjamin-Hall , if you will.
Very good! I vote that that be added to our standard emoji set here. It has great promise for utility.
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@Benjamin-Hall said in Temperature Conversion:
And perception of temperature (which is what warm/cold refer to in my dialect) is notoriously full of and idiosyncrasies.
It actually depends on the rate of heat flow, not the actual temperature at all. That wouldn't matter if everything was in simple equilibrium, but it very much isn't due to a whole lot of different effects…
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@Khudzlin said in Temperature Conversion:
@mott555 said in Temperature Conversion:
@Khudzlin said in Temperature Conversion:
@sloosecannon said in Temperature Conversion:
Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
That's evil. The question doesn't make sense.
It makes perfect sense if you think in an absolute scale. If you double 0°F, you get 459.67°F.
Not even then. "Warm" does not refer to thermodynamic temperature.
@mott555's interpretation is the intended one, if slightly incorrect due to technicalities. I tried to word it in a way that sounded like a perfectly normal question but had a seemingly absurd correct answer
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@Benjamin-Hall said in Temperature Conversion:
@Zecc said in Temperature Conversion:
@Benjamin-Hall , if you will.
Very good! I vote that that be added to our standard emoji set here. It has great promise for utility.
Maybe we should go all the way and get COMBINING WTF added to Unicode?
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@Benjamin-Hall said in Temperature Conversion:
@Zecc said in Temperature Conversion:
@Benjamin-Hall , if you will.
Very good! I vote that that be added to our standard emoji set here. It has great promise for utility.
Currently in the process of
kneelingadding some new ones and fixing some old ones. If you're serious, how do you propose it be named?
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@kazitor I'd say
:wtf_owl:
with or without the_
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@Parody said in Temperature Conversion:
@Benjamin-Hall said in Temperature Conversion:
@Zecc said in Temperature Conversion:
@Benjamin-Hall , if you will.
Very good! I vote that that be added to our standard emoji set here. It has great promise for utility.
Maybe we should go all the way and get COMBINING WTF added to Unicode?
Unicode Consortium has been doing nothing but combining WTFs this last decade.
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@mott555 said in Temperature Conversion:
@Khudzlin said in Temperature Conversion:
@sloosecannon said in Temperature Conversion:
Speaking of fun with temperatures, I enjoyed myself recently by asking my coworkers (some of which are not the brightest crayons in the box) how warm something that's twice as warm as 0°F was. The mental contortions were fun to watch
That's evil. The question doesn't make sense.
It makes perfect sense if you think in an absolute scale. If you double 0°F, you get 459.67°F.
The kinetic energy is twice as much, but it still makes no sense to say that it's twice as warm.
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@brie said in Temperature Conversion:
The
kineticthermal energy is twice as muchPlease don't mix those up.
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@Gąska said in Temperature Conversion:
@Parody said in Temperature Conversion:
@Benjamin-Hall said in Temperature Conversion:
@Zecc said in Temperature Conversion:
@Benjamin-Hall , if you will.
Very good! I vote that that be added to our standard emoji set here. It has great promise for utility.
Maybe we should go all the way and get COMBINING WTF added to Unicode?
Unicode Consortium has been doing nothing but combining WTFs this last decade.
Hey, untrue! They’ve also been creating lots of new ones.
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@DCoder The best part IMO was when an actual Mozilla employee started mocking him.
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@dkf said in Temperature Conversion:
@brie said in Temperature Conversion:
The
kineticthermal energy is twice as muchPlease don't mix those up.
Heat is just movement at the molecular level.
I probably should've said "the kinetic energy at rest is twice as much", because obviously if the object is moving then its kinetic energy is higher than it is at rest. But "thermal energy" is just a specific type of kinetic energy. It's resting kinetic energy.
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@brie said in Temperature Conversion:
But "thermal energy" is just a specific type of kinetic energy. It's resting kinetic energy.
You're right… but simultaneously wrong in every useful way. Are you management these days?
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@dkf So, twice as warm as 0 degrees freedom. Let's call "cold" vs "warm" freezing, because it's winter. So, -32 degrees freedom is your answer.
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@DCoder said in Temperature Conversion:
Did I just find @BernieTheBernie 's coworker?
Surely that thread has run its course by now… let's just check… bwuh.
This reminds me of the "frames mediate securely, the entire industry is wrong and I am right" story we had here ages ago.
And then we branch out to … er, molten salt fission? DevOps? CSI Cyber? I don't even.
And then we get to American politics.
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@DCoder I didn't realise I could be so much more authoritative by multiplying the end result by a "correction factor" of 1 + 1e-52
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@DCoder said in Temperature Conversion:
molten salt fission
Might be more sensible than it seems at first impression: https://docs.saltstack.com/en/latest/topics/reactor/
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But thanks for the link. I was too lazy to check if Salt had something like that, my DevOps knowledge is limited to "I can do things with Ansible; alternatives to it include Puppet, Chef, Salt, etc. And it's trendy to shit on Docker now."