Who Invented the Fahrenheit and Celsius Temperature Scales?
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- čas přidán 10. 06. 2024
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In this video:
Firmly entrenched in American society, the seemingly capricious nature of the Fahrenheit temperature scale could lead one to think that its Dutch inventor, Daniel Fahrenheit, pulled the number for the freezing point (32°F) of water out of his hat. But, in fact, its designation, as well as that of 0°F were precisely (for the early 18th century) calculated based upon deliberate choices about how to establish fixed points of temperature.
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www.livescience.com/25959-atom...
education-portal.com/academy/l...
www.sizes.com/units/temperatur...
en.wikipedia.org/wiki/Daniel_G...
en.wikipedia.org/wiki/Kelvin
www.linnaeus.uu.se/online/life...
dwb4.unl.edu/Chem/CHEM869M/CHE...
en.wikipedia.org/wiki/R%C3%B8m...
dwb4.unl.edu/chem/chem869m/che...
www.physlink.com/Education/Ask...
antoine.frostburg.edu/chem/sen...
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They both agree on one thing. -40 degrees Fahrenheit is -40 degrees Celsius. -40 is -40, it’s just friggin cold.
It's fun to hear Simon try to pronounce my hometown "Uppsala" lol. Located in sweden I can add, as he only mentioned Ekström being swedish.
I was also taught that it was Celsius' students that switched the scale. Huh.
Fun fact; the Celsius house is a building where he worked and it's the only house that isn't built with the New Street plan as the rest of the inner city (as it is an old old house) thus it is askew from the rest of the buildings.
I was told that Fahrenheit took the coldest day in his town one year and set it to zero and the hottest day in his town that year and set it to 100. (I was taught this by a phD professor!)
then we've all been taught wrong, or simon is wrong :P
That was just about the most interesting thing I think I've ever learned. I literally thought the temperature system was far older than that.
You literally thought that? You didn't figuratively think it, tho, did you? Cuz that would be preposterous!
Thanks for your help today
well since I'm Swedish just like Celsius, his system makes perfect sense to me hehe in my home town the temperatures goes from +25 in the summer to -25 in the winter, so equal sides of 0! and in the period in between you just have to keep track of if the temperature is above or below 0 to know if you'll slip and die or not.. like if it's around 0 we don't even say the number, just "it was below 0 last night so be careful so you don't slip" or "even though it snowed a lot yesterday the temperature will be in the "plus degrees" today so it'll all be gone by dinner". it's so convenient since everyone knows 0=ice! ^^
A point of technicality. Zero degres Celcius and 32 degres Fahrenheit are not the freezing point of water, they are the melting point of ice. You can cool water to a surprising level below those temperatures before it starts to freeze. Also, because water releases latent heat as it freezes, the temperature of the newly formed ices can be at an equally surprising level above those temperatures, and also vary unpredictably. Melting ice has none of those drawbacks and provides a much more accurate reference when calibrating a thermometer.
Actually, it's more specifically the freezing point of water at Standard Pressure, AKA one atmosphere or ambient air pressure at sealevel. Water will freeze at 0C or 32F reliably under those conditions.
That's why they don't use the melting point of ice. They have used the triple point of water since the 1920s. And that's why water doesn't melt at 273.15 Kelvin and doesn't boil at 373.15 Kelvin.
Francois Lacombe triple point
Thanks for giving Fahrenheit a fair shake!
How come it seems like all these people who invented things and have items named after them, you don't hear anyone born with those names. Was Celcius an uncommon name and happened to be the name of the man who invented it? Same thing with Fahrenheit. I've never seen anyone with these names.
Interesting point. But maybe inventors with really common names just don't get their inventions named after them because it would be confusing.
It's 20 degrees Smith out today.
Maybe it's because inventors become inventors from being only children, and once they get into inventing, they don't have time for a family. They carry their family name down through their invention in place of children. Therefore, less people with the same name as the invention. (This is about 75% a joke, 25% an evaluation on human behaviours.
I assume it's because most inventions that use the inventor's name are from ages ago and family names die out fast. Also maybe people changed their surnames once an invention with the same name became popular. Like you might want to change your name today if it was Mr Dyson
Just remember Joseph Whitworth (1803-1887), the guy who first thought of standardizing bolts, screws and threads. Or Dr. Richard Gatling (1818-1903), famed for his "Gatling Gun." So I guess more "normal" names are used when naming inventions - just not recently.
Also, as Raul mentioned, surnames die out, and new surnames aren't generally invented to replace these, so there's less names in the world to choose from these days when compared to the past.
It's not so difficult in learning the different temperature scales, but it's really hard to convert them in your head. Lol
It really isn't, the conversion factor is 1.8 so quick math from Fahrenheit to Celsius is subtract 30 and divide by 2. For example 100-30=70/2=35 taking a second or two will push this closer to the correct value of 38.
I do acknowledge though that I have been converting temperatures almost daily for a couple years though so I might have more practice than some
Converting the two systems of measurement is about as easy as it can possibly get.
37°C
37/5 = ~7
~7*9 = 70-7 = 63
63+32 = 95°
You can add in the missing 37-5*7 = 2°C, which would be about 3°F, so 96°, if you want to be more accurate.
Considering thatF and and C are both fairly granular, missing a decimal on the final answer is not important.
My dad taught me to convert C to F in my head when I was maybe 10 years old.
Double the C then subtract 10% of the total and add 32. Easy
ex: 100x2 =200 200-10% of 200=200-20=180 180+32=212
37X2=74 74-7.4=66.6 66.6+32=98.6
Bonus Fact: the two numbers to keep in mind for everyday conversion between Celsius and Fahrenheit are 16 and 28, because all you need to do is flip the digits: 16°C = 61°F and 28°C = 82°F. Add to that that a difference of 10°F roughly equals 6°C, and you can easily figure out any conversion in your head.
This has been driving me mad for YEARS!!! Thank you; now i can turn that light off in my head.
thank you i now understand it much appreciated
If you found this interesting, a really good book to read is "Absolute Zero and the Conquest of Cold" by Tom Shachtman. It describes everything between the earliest methods of cooling things up to Helium III, etc.
So you said the guy who made Celsius was trying to get rid of negative numbers, but wouldn't there be more negative numbers in that system? Because in Fahrenheit there are still 31 numbers colder than freezing that aren't negative, but in Celsius anything below freezing would be negative. I don't know. Maybe my American brain is just having trouble understanding 😌🌡️
Supposedly, Celcius wanted large numbers to show colder and colder temperaturrs because he lived in Sweden. There, the summers would not go "down" by much while the winters would get colder even more than a hundred degrees. That doesn't account for furnaces, where the numbers would go negative.
jmchez oh okay! Thanks for explaining!
Sierra Your brain is fine, lol. Kelvin would be our real hero here.
You apparently weren't paying attention to the part where Celsius set 0° to boiling and 100° to freezing. So temps below freezing aren't negative.
cleetose That is true but it doesn't help Celsius' cause, does it? Since there is a point of absolute zero (approx - 274) while temperatures of millions ℃ (as we'd use ℃ today) are possible, he'd end up with much bigger negative numbers. Substantially so even.
My mother was taught metrics in school. She said that they were taught the metric system because the US was going to switch to it in the future. Of course this didn't happen. I went to school in the 80s/90s and we seemed to only use metrics for certain maths and sciences. In a way I wish we did use a metric system. It would make living here in Japan easier for me. I still think in Fahrenheit, Miles, inches, quarts, pounds, gallons, and feet.
ssjup81 The Metric system is based on Multiples of 10
Milli, Deci , Deca etc ...
It's very simple and easy to learn
1994CPK
How much is one Newton in Imperial system? :-)
I don't hate Imperial, but it would be better for everyone if it disappeared.
- Example: A sattelite did not function because of the different systems.
ssjup81
Every other country pushed the Metric system by forbidding the Imperial system.
(We all wanted to stick with our own system, just like USA citizens.)
But the USA is to much of a "free" country, they cannot push the Metric system like the other countries did.
Now they need to learn both systems at school. lol
They were teaching the metric system alongside the nonsense we still use in the US back in the 70's. They did say we were going to switch. I wish we had.
Oddly, measurements in the US are metric if it's for science, government, military and a lot of manufacturing. it's really just the private sector that still uses the old system. And stranger still when you think that the current US pound is based off a metric measurement.
My old art school was a manor built during the time the conversion happened here in Norway. Due to miscommunication, inches were still used inside, while meters were used on the outside. So the windows are bigger and placed strangely far down on their floors, compared to other buildings of the same era. Luckily, the original owner was either broke or didn't care that it looked odd.^^
It all just made for an interesting class when walking the city and discussing architecture. :D
I set my car thermometer to Celsius to train myself and I'm pretty well used to it after a couple of years.
Beautiful day outside a nice 293 Kelvin
I actually remember when learning about Celcius in US elementary school we still referred to it as centigrade. That may of course just been my teacher.
I do wish that the U.S. measurement was metric. If for no other reason easier communications with the rest of the world, and fewer chances of people dying from miscommunication.
jaspr1999 Scientists already use it, so the whole "talking to the rest of the world" thing is covered. Unless you mean in video hosting site comment sections, in which case you are free to do so if you wish.
OtakuUnitedStudio - Oh, I wish that were true. Try requisitioning anything through the GAO in metric and what you'll get back is something that was incorrectly calculated into imperial and back to metric. If you try to requisition in imperial they just screw up the reverse of their process. I can't tell you how many times I've gotten back a correct sized order. The ACoE has the exact same problem. Yes, science has the right of it, but the bureaucrats get in the way.
jaspr1999 I understand your frustrations but don't understand how that applies to my comment.
OtakuUnitedStudio - In speaking to the world, the general populous using a single system of measurement would mean more than just scientists have it covered without miscommunication.
jaspr1999 I think maybe I misunderstood at first. I wasn't thinking that an American government office was being considered as part of the "rest" of the world.
Still, they should be able to fill a request without difficulty. In fact, I'd HOPE. The Office of Appropriations would work in metric as a standard. I know it's almost universal in STEM fields, and while I don't really care if it's used in large distances or drink sizes, it's definitely more intuitive for 3D modeling and printing.
4:35 When you said Celsius, I did not expect you to emphasize the third syllable.
As someone who temperature is a vital part of calculations noramly using Kelvin can't stand when its given in Fahrenheit as I hate the extended conversion time
My understanding is that the brine thing was an ad hoc justification for his presentation to the Royal Institute.
"By and by Fahrenheit got ready to present his scale to London’s Royal Society, the scientific big leagues of the day. It dawned on him that it was going to look a little strange having the zero on his scale just sort of hanging off the end, so to speak. So he cooked up the explanation that zero was the temperature of a mix of ice, water, and ammonium chloride."
www.straightdope.com/columns/read/845/on-the-fahrenheit-scale-why-is-32-freezing-and-212-boiling/
My mom never used Celsius, preffering Centigrade. I keep her in mind by doing the same thing.
You should include Reaumur
Will you do a video on the origins of the Alphabet song and whether it came before the accepted alphabetical order, or if the alphabetical order came first? I was just pondering this the other day as I was helping kids learn how to use a dictionary.
Interesting and good as always. I wish Simon would a video on WHO DESIGN THE STAR SHIP ENTERPRISE! It is, perhaps, the most recognized spacecraft, and is it true it's upside down?
Terms like "up" and "down" have no meaning in space. So maybe it was the right way up and the camera was upside down? It's equally accurate said that way. :-)
aussiebloke609 :
After 52 years, maybe it's time to tell the camera man how to hold the camera correctly. On the other hand, why spoil a good thing? I guess the rest of the filming crew must be pretty stoned not to have noticed.
According to a rumour I once heard, the designer tossed his final version of the Enterprise on Gene Roddenberry desk. Later when they met Gene say he liked the design, but the designer told him he was holding it up down. Gene then replied he liked it better that way. That makes the following Bugs Bunny cartoon the only show that got the Enterprise right side up. Please take a couple of minutes to watch it.
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kab kab:
That is just awesome! I'd always heard it was originally intended to be the other way around, but never found anything verifiable in that regard - until now. Thanks, Bugs! :-D
PS: don't blame the camera crew - since there's no up or down in space, they had no way to know. :-P
aussiebloke609
You're welcome. I love that video.
But I still wonder who designed the original Enterprise.
4:23 I guess we can say that °C stands for degrees Carl (Linnaeus).
Hi guys, how about a video on the effects of Rosemary on your memory?
My normal body temp has always been 96.8, rather backwards I know. So, when I have a fever it goes quite unnoticed by doctors until it gets really high for me but closer to low-grade fever for most. My daughter's normal is the same as mine but my son's is closer to the average 98.6. I suppose I'll never know why.
I like saying its 110 degrees in the shade. With Celsius its only 43 degrees - It doesn't have the same impact.
You should do a video on what it would take for the USA to convert to the metric system, detailing the myriad ways the country, education system, and industries would have to adjust
i've always had a cooler core body temperature but higher average temperature in my extermities. i researched it and it can be caused by hereditary or growing up/living in colder climates.
Centigrade could also be both Celsius and Kelvin since they have both 100 steps that are equally large.
It's so hard trying to process all these information here
In several spanish speaking countries, "centigrade" is the preferd form.
Fahrenheit is also more precise. The ambient temperature on most of the inhabited world ranges from -20 degrees Fahrenheit to 110 degrees Fahrenheit - a 130-degree range. On the Celsius scale, that range is from -28.8 degrees to 43.3 degrees - a 72.1-degree range. This means that you can get a more exact measurement of the air temperature using Fahrenheit because it uses almost twice the scale.
You could of course use tenths of a degree, then either measure would be very precise.
My normal body temperature is 97 F. If I get up to 98.6 F, I start to hallucinate from fever. It sucks because they never believe that I'm as sick as I am at the hospital, even though they know damn well that a person's body temperature can vary and even when I tell them that mine is normally 97.
Centrigrade is still used as is in modern Turkish. '25 santigrat derece'
The Celsius users are all "Celsius is better"! The Fahrenheit users are all "Fahrenheit is better"! But the reality is that it's all arbitrary anyway. Pegging 0 to freezing water and 100 to boiling water is as arbitrary as the way the Fahrenheit model does it. They both have some advantages and downsides. Unlike the metric debate, this one doesn't have a clear winner.
I learned centigrade in school, and I always default memory it.
here in the US, due to the fact that celsius is rarely used anyway, it's still common for people to refer to celsius as "centigrade", even I will say it every now and again.
We should have the Fahrencius and Celciheit. 0 c will be 16 Fc and -8 Ch respectively. Why? Just to mess with people.
Michael Ma At that point, they should just be called the troll systems. . .
Erhm... french guy here. I've often used "centigrade" as a synonym of Celsius. And I've never heard of it being used to measure an angle.
Both systems have absolute scales (Rankine for Fahrenheit and Kelvin for Celsius) starting at 0.
I wondered what happened to centigrade
UGH. VHS rental tapes. Those things were never recorded with the same tracking settings the VCRs were. Always had to fiddle with the tracking until it stabilized, then when you went to watch a regular tape, adjust it back.
You kids and your streaming everything. All you dread is 'BUFFERING," never knowing the horrible sound of a VCR starting to eat a crappy tape, or that line of static that moves up the screen.
The color shift usually meant it was bootleg, or recorded over the air from a UHF channel.
you should do one on the origin of 'excetera' as distinct from et cetera
"Excetera" happens when a dumb person hears an educated person speak. Same as "all of the sudden." If one never sees these things written, one is bound to make mistakes.
Yeah, I'm obviousy having a little dig at Simon in the post as he does it in this video and I've noticed it quite a lot on TIFO. I find it jarring every time and am actually a little puzzled at why he does it given the nature of the videos.
It's Et Cetera, a Latin phrase meaning "and the rest" usually used in English to mean "and so forth" or "and similar things"
Uncle Ben facts
LadyJaneF0x it's a natural evolution of language. It's easier to say ek setera than et setera. Actually, it should be et ketera
How about a video on why there are 360 degrees in a circle?
Celsius if one of the less confusing of metric scales, to those who live in regions where it comes into play less. (The US does use the metric system for some things) we just forget what we learned in school due to the government not switching over.
we still use centígrados in Spanish most of the time
6 doesn't divide evenly into 64. 16 does, and would be able to be marked by simply dividing the distance between points in half.
Admittedly, you would be able to eventually just mark all 64 degrees between them by just continuing to divide the distances in half two more times beyond 16.
Where does the phrase “right as rain” come from?
Celsius to Fahrenheit double Celsius figure and add 30. I learn that today
You should do a video on diplomatic immunity.
Either works well. It's whatever you're used to. I think Fahrenheit is better. It's more detailed. The numbers are a little odd compared to Celsius for sure.
It's funny how it's just one of those times where the name of the thing is the name of the guy that invented it
Chinese airlines still use centigrade
I still use Centigrade. It was what I was taught in school (UK) in the latter part of the 80's and early 90's And everyone in the UK knows what you are talking about when you say "Centigrade" In fact I know people that went "What's Celsius" when I have used it in the past.
Thank you! It's the true name for it, Celsius is its own system with its own uses. It pisses me off to no end that they're now _officially_ messed up. And hell, this is coming from an American!
Micah Philson Celsius and centigrade are the same thing.
I always thought that the switch from "centigrade" to "celsius" was just another example of "the great renaming" when units got renamed for famous scientists. "Absolute" became "Kelvin", "cycles/sec" became Hertz, and so on.
Jim Steele quite possibly right.
Was 100F intended to be chosen as body temp, but his assistant had a fever at the time?
Wow, Simon, you sound exactly like the guy in this video on youtube:
How to Insert Footnote in Word
no I am not a bot, i am serious!
Sorry, there is only one true measurement for heat
#teamKelvin
I have my own scale ranging from "Shit, that's cold" to "Ouch, that's hot"
#teamRankine
Trevor Best 🤣
P K rankine is better
I prefer the metric system except for every day temperatures.
The C scale is too compressed.
Well, after all, it all boils down to which one we’re used to.
But to give an unbiased opinion, I guess F is pretty decent in terms of everyday weather, and C for scientific and medical measurements/purposes. And this is coming from, hold your horses now; a Swede - Anders Celsius was basically my compatriot.
But what can I say, I am still pretty damn grateful that K is the SI-unit. Lord Kelvin knew his shit when he modified Celsius’ scale.
No mention of Kelvin?
Further Bonus Fact: The Celsius scale is not defined by these placemarks anymore and hasn't been for nearly a century. The size of each degree Celsius is set by the thermodynamic concept of absolute zero and the triple point of water, the latter of which is much, much easier to measure than the melting point. Not the freezing point, that can be lower than the melting point. The melting point is dependent on pressure. In contrast, the triple point of a substance exists at a specific pressure and temperature intersection. Specifically, the size of a Kelvin (and, by definition, a Celsius degree) is
"The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water."
Basically the difference between absolute zero and the triple point of water is divided by that odd fraction. And that water also has a prescribed ratio of isotopic composition called VMSOW.
This meant that there was no longer exactly 100 degrees of Celsius between melting and boiling points of water. And, indeed, water doesn't melt at 0 C anymore; neither does it boil at 100 C.
Additional triple points (about 15); and for hot stuff like metals, melting point, for other substances (Hydrogen, Oxygen, Nitrogen, Aluminum, etc.) were added in the late 80s (ITS-90) to make the scale more usable in labs working far outside the temperature regime of liquid water.
This is all due to change in the next year as temperature will be defined in a way that is at once more exact and more abstract from day-to-day experience. The Boltzmann constant will be defined in the new version of the International System of Units, and the measurement of temperature will derive from this.
Fuller explanation at:
ftp://ftp.nist.gov/pub/physics/neilz/papers/15_8_Measure_on_impacts.pdf
www.bipm.org/en/measurement-units/rev-si/
I don't get American temperature. Particularly the zero point is removed from everyday experience. There are no lakes of ammonia brine or jars of brine in the freezer. Nothing special happens at -17 degrees. The water freezing point is obseved often, and after a weather report I can estimate if roads will be frozen clean or wet and muddy.
So you can correct me if I am wrong, but essentially Fahrenheit is a more accurate measurement with smaller portions and more likely to not use a fraction, whereas Celsius is a more aesthetically pleasing measurement.
Since even Fahrenheit still requires fractions, it can't be called more accurate. Fahrenheit is more granular, but not a quantum scale - you can still have 32 1/2 degrees F, or 1/4 degrees C. So both are equally accurate - the only real difference is what you're accustomed to using...and if you're trying to communicate that temperature with others, what scale they are accustomed to.
It was changed because France used a similar word for angular measurement. Degrees???
Yup as in gradian, which there are 100 in a right angle, i.e. 9/10 of a degree or π/200 radians.
Ah. Good point.
Joe MacDougall
The word Kilogram is used because the original unit of "grave" (as in gravity) sounded too much like Graff, a hereditary title, and the French revolutionaries could not accept that.
I am Norwegian and "grad" is a common/everyday word here - used for both temperature and angles. E.g. "it is 20 grader outside" (no need to mention celsius as thats been the default her for ages" Or - "I measure the angle as 90 grader".
The same thing happens here in the UK. "It's 20 degrees today"... With no mention of unit.
Which can be fun as most people in the UK are bilingual with units and end up as translators for the Americans.
My mother thinks nothing of saying it's 80 degrees outside, which would obviously be degrees F (or fatal), yet others will say it's 8 degrees, which is usually degrees C as this is the UK, not the arctic.
TBH I prefer degrees F for weather, it's more granular. In C you'd only use a range of about 40 degrees here, plus 100F is easy to remember as the "Too damn hot outside!" limit, certainly easier than trying to remember 38C.
People still use centigrade to this day. This whole business of whose is better is just plain confusing at times.
Being an American I've come to feel that Fahrenheit is actually a better system. Why? Because 0ºF tells me when I'm truly cold. 100ºF tells me when I am genuinely hot. And it is much more poetic. Who cares about what water is doing in daily life? The fact that water is frozen doesn't actually convince me that it's truly cold. (I live in Alaska.)
What were you about to say when you got cut off by the title?
What do I find out today from Today I found out?
Is it getting 🔥 in here?
It must be 91 degrees Celsius? Or is that Fahrenheit?
What next, Kelvin? or Why SI?
I’m pretty Siri hates me every time I ask what anything in metric is in American.
"The metric system is the tool of the devil! My car gets 40 rods to the hogshead, and that's the way I likes it!"
Abe Simpson
Sir iam requesting you to mention the scientists name on the side of scientists photos
What about kelvin
Kelvin is basically just Celsius with the 0 position shifted.
Kelvin is the same as celcius but then 274 degrees higher. This is to make the boiling points of elements easier to know because the elements with negative boiling points will now have positive boiling points.
I'm not completely sure about that though
Kelvin always thought positive
0°K is the absolute 0, you can't make something cooler than that. So all temps are positive. To convert easily to Celsius, 0°C is 274.15°K and 100°C is 374.15°K : add 274.15 to the Celsius temp and you have the Kelvin temp.
François Bergmans so the coldest temperature is -274.15 C?
The British people I know use the Fahrenheit scale.
Why are trampolines fun to bounce on?
As far as I remember, Daniel Fahrenheit is German, not Dutch.
Why are the measurements for pressure, Bar and Atmosphere, so close?
Zachary Adams both are based on the same rationale but one is slightly more precise.
I had a discussion with a college professor where he told us you can't use "centígrados" in Spanish anymore, you must use Celsius, and this is BS, we share the same problem with the French language but we still can say "X grados centígrados" it sounds redundant, but just like "100%" does.
What about kelvin?
Can you do a video on the correct way to pronounce GIF?
Celsius had the lips to end all lips
1. Celcius is not a part of the metric system.
2. Farenheit is just as base 10 as Celcius is.
3. Farenheit's 0-100 more closely represents the daily temperature on Earth. Whereas it's routinely below 0C and never 100C.
37° C AKA
The Human Centigrade
This makes about as much sense as being drunk and rolling dice.
And Kelvin
Celsius' lips are, um, very...lippy.
ElyssaAnderson What ? LOL
stardude2006 - the portrait of Celcius ☺️
*very pronounced*
The convertion is way too confusing, it doesnt work with me just do fahrenheit -32 * 5 then divide by 9
Degrees Celsius is not an SI unit. Zero degrees Kelvin is -273.15 Degrees Celsius. To do calculations in Engineering, Physics and other branches of science, you have to convert from Degrees Celsius to Degrees Kelvin. This is easily done by simply adding 273.15 to Degrees Celsius to obtain Degrees Kelvin, which then can be used in calculations. 273.15 Degrees Kelvin is 0 Degrees Celsius and 373.15 Degrees Kelvin is 100 Degrees Celsius.
What I should have added, was that Degrees Kelvin is the SI unit for temperature.
no explanation as to why the boiling point of water is commonly placed at 99.98 degrees Celsius today?
Celsius is not the same as centergrade. To make a centergrade thermometer you measure the property of a material (say the volume of mercury) at freezing and boiling and them devide into 100 steps. Not all properties will increase in a direct propertional amount to temperature. So two different thermometers will agree on 0 and 100 but will show different amounts in between.
KELVIN relates to the actual thermal energy in something. It's points of reference are absolute zero, freezing point of water abs the boiling point. So the freezing point of water Is 273.15 in kelvin.
Celsius is the temperature in kelvin minus 273.15. So it may seem the same. How at temp other than zero and 100 Celsius relates directly to thermal energy whilst centergrade is arbitrarily defined.
Hey V sauce here
porque no los dos?
I swear this guy knos wut im thinkn
Fahrenheit is a nonsensically divided number derived between a random and a variable. Listen to John Finnemore
As an American I wish we converted to Metric decades ago. I still wish we’d convert to Metric today!
It would certainly make teaching conversions a piece of cake...
true....i taught myself how to use it...way easier to learn than our weird system in the us....does any other country even use our system of measurement? right off i can't think of one
Me, too!! I use mm when I measure and build small/medium things, now. More precise.
The settlers brought imperial measurement from the UK. And when the rest of the world updated to metric... the US is stubborn
Julian Birch How often do you actually have to, though?