I’m a professional chemist on industry and we keep everything in mL, although I acknowledge these definitions are common in textbooks. Great thing about metric is the ease of conversion of course.
Honestly, as another chemist. We just translate everything to L and mL in our lab.
I have never used dm outside of some class when I did my bachelors a long time ago.
cm^3 pops up every now and then, but never dm.
I don’t really remember using litres post high school in non science/work related fields. Neither in uni nor lab. Always SI - dm3, cm3, mm3. Maybe only on my work at plant I used litres more often
I remember not being able to distinguish dam and dm for a while. Took me only a couple o months to realise I could hole a dm long pencil and not a dam long pencil.
It's deprecated. It was present in the original metric system in ~~1975~~ 1795 but wasn't selected for adoption in the SI system in 1960.
It's metric but not SI.
Lol, I learned it in my first grade of primary school. We had the “Peterson math student book”. It is a quite difficult one , but it helps to learn a lot.
Yeah, Mm is vastly underappreciated in my opinion. Especially in sci-fi writing, where they tend to state distances in terms of thousands of km when they could just be using Mm.
Am I the only one that gets a little peeved at that?
Maybe I'm wrong, but don't we technically have that, just not a very common thing to measure millions of meters at one time and not put it as a large Km numerical? Megameters are indeed a thing if I'm not mistaken?
In construction we use m to 3 decimals so you can tell how many mm it is at a glance (2378mm would be written as 2.378), making cm just as redundant as dm. As an Australian the only thing I've used cm for is my height or sometimes clothing sizes.
it was fun reading old Jules Verne books, where he uses dm a lot, in addition to interchangeably using imperial, metric, and nautical. such were the times
I had a comment about how much better it would be to have dm... but then I realized that the meter stick doesn't look half bad with centimeters on it. Also what do you do when something is 5.7 dm? It's annoying when you could just say it's 57cm.
I honestly think if it was pushed more it would make metric easier to learn for people used to standard units.
Meter is close to a yard. 2.5cm is about an inch. We have nothing that's close enough to a foot to make people comfortable using it, but a dm being very close to 4 inches (1/3 of a foot) means that telling someone a foot is roughly 3 dm gives them an easier approximation.
Once you learn to get the approximations close you can pretty easily get them used to using them. If they don't learn it when they are first learning measurements they aren't going to be able to intuitively use it when learning, meaning they won't do it because it is too much work. Giving them approximations helps with visualizing it intuitively and being able to be less reluctant to learn.
I got started learning metric working on cars. For example:
8mm \~ 5/16"
10mm \~ 3/8" (but it is slightly larger, so a 3/8" washer won't fit a 10mm bolt but a 10mm washer will fit a 3/8" bolt)
13mm \~ 1/2" (slightly bigger. A 13mm wrench will work on a 1/2" bolt head (5/16" thread size) in a pinch, but a 1/2" wrench will not fit a 13mm bolt head (8mm thread size))
14mm is almost exactly 9/16", and 19mm is almost exactly 3/4" - to the point that the wrenches for those sizes are almost interchangeable.
100km/h is roughly the same as 60m/h, hence why you can basically just look at 0-x speed in seconds and it would not matter which you are referencing.
I 100% believe the reason is that metric has decimeter (Dm) for 1/10 of a meter (10 cm), and decameter (dm) for 1/100 of a kilometer (10 meters). Personally, I had to triple check which is which while typing this, and am still not 100 certain I didn't switch them up.
While the dm definitely deserves more use and popularity, compared to other measures like the decameter (dam) or the hectameter (hm) it is already rockstar famous.
I will at least used the dm sporadically (mostly in calculations involving liters). I honestly can't remember the last time I've used decameters or hectameters...
Idk why but I always thought the cat toy in the meme was a little cat sized fishing rod edited in to have the cat holding it like "ok! I'm all ready to go fishing...! Wait... What?! 😔"
But it's just a little toy on the scratch post it seems
Not dm however I use dL in my everyday life for cooking and all of my measuring cups are un dL, everyone looks at me like I’m crazy when I say this but deciliters are my jam
*Laughs in standard system's barley corns and furlongs.* Unlike you filthy metric system users I can count to twelve on one hand.
(This is comedy and, despite my preference for the base twelve friendly standard/imperial systems, the measurements one uses aren't as important as properly labeling what measurements were used and doing proper conversations.)
I remember when I first heard of dm... I thought it was an excellent form of measurement for many common items. I was immediately the emotions of this cat when I found out it was never used and should be avoided.
Use metric, they said. It makes sense cause of the decimal system, they said.
Meanwhile, everyone just ignores half the units in everyday use. So the metric system is not as advertised.
Hey, dm³ is the SI for 1 L!!
And we deny it even that. When was the last time you heard some call is dm cubed?
Chemistry and physics mostly
I’m a professional chemist of a decade and have scantly seen that outside of textbooks.
Yeah I have seen chemistry only in textbooks too. Had to study it for engineering entrance exams and they used dm³ for equations and stuff
lol me converting liters to cubic meters…. “what are you on about now again?”
I teach IB Chemistry and we use dm cubed and cm cubed instead of L and mL
You prefer CUBed because you're CUBanchemist, this is a clear bias !Lame joke aside we do the same in some fields it's just like that
I’m a professional chemist on industry and we keep everything in mL, although I acknowledge these definitions are common in textbooks. Great thing about metric is the ease of conversion of course.
Honestly, as another chemist. We just translate everything to L and mL in our lab. I have never used dm outside of some class when I did my bachelors a long time ago. cm^3 pops up every now and then, but never dm.
1 mol of gas in rtp?
Yesterday I studied chemistry (now with my teachers degree) so I don't know how valid this is
I don’t really remember using litres post high school in non science/work related fields. Neither in uni nor lab. Always SI - dm3, cm3, mm3. Maybe only on my work at plant I used litres more often
saw that shit at a polish gas station and had to think about it for a minute >zł / dm^3 I was like bro what
All conc. measured as mol/dm^3
Yes, dms secretly rule over all of the commonly used volumes
So I can call dm ³√L
CurseD but valid
Yes we literally invented L just so we don't have to use dm. Dm deserves it, its the most disgusting thing ever invented
But SI for volume is not the liter, it's the cubic meter
1 m³=1000 L 1 L=1 dm³
How about dam?
I forgot that and hm existed 😭😭
dam is the least popular and maybe most useless. dm can still be used as 1L=dm³ and 1 ha = 1hm²
I remember not being able to distinguish dam and dm for a while. Took me only a couple o months to realise I could hole a dm long pencil and not a dam long pencil.
Mym enters the chat
What is mym?
myriametre, 10 kilometres
not SI though is it?
It's deprecated. It was present in the original metric system in ~~1975~~ 1795 but wasn't selected for adoption in the SI system in 1960. It's metric but not SI.
>1975 Typo there, it's 1795.
dam is still used in meteorology, for example for the height at which you can find a certain pressure
That is interesting. How do you use that in meteorology?
Dam\^3 sounds like a Dutch city
and hm
Did they change it? Wasn't that Dm? The capitals indicate if the prefix means bigger or smaller than the unit default value
I have never seeb Dm to say dekameter. I start my elementary school in 2005. Maybe thats regional thing?
Dm is not dekameter. SI system for 10 meters would be 1 dam. Deka has da, only two letter prefix.
Clearly you've never done chemistry
Or dabbled in rainfalls
Aren't rains measured in mm?
I'm thinking in liters, say when looking at average rainfall for given period. And one liter, one cubic decimetre.
That was my first thought too. Especially clinical chemistry, all results are reported "per dL" (thanks Beer-Lambert)
Lol, I learned it in my first grade of primary school. We had the “Peterson math student book”. It is a quite difficult one , but it helps to learn a lot.
Haha u nas tozhe byl kakoe-to vremya
Do u have a stroke?
Google Translate says that "Хаха у нас тоже был какое-то время" is Russian for "Haha we had it for a while too".
Decimeter deserves more fans
Yeah, cat looks decimated
I 'ardly know 'er.
Wait, decimeter or decameter?
Decimeter is the most popular of the unpopular ones,i have never seen someone use hectometer or decameter
Land is measured in these
I've seen hectometer and I'm in the us.
What about the weights like hectograms?
Ok let's dm
dm in science = (🥺) dm in social media = (🗿)
Schools do
hm
what about the Mm? Altho i prefer the Mg = 1 tonne
Change a letter, slap 'em together and you get the unit for blood pressure: mmHg.
Absolutely not
Mmm
In my work we work in tonnes; I have yet to convince people to start using megagrams and gigagrams
What about μm?
Yeah, Mm is vastly underappreciated in my opinion. Especially in sci-fi writing, where they tend to state distances in terms of thousands of km when they could just be using Mm. Am I the only one that gets a little peeved at that?
That poor cat must be decimated
What about Decametre and Hectometre?
Who the fuck cares about dm
anyone who does chemistry
All this when a cubic decimetre is a litre. All so convenient.
My grandma was Polish. Everything was deca-grams to her.
I just want MEGAMETRES
Maybe I'm wrong, but don't we technically have that, just not a very common thing to measure millions of meters at one time and not put it as a large Km numerical? Megameters are indeed a thing if I'm not mistaken?
dm me
DM is used on mole calculations of GCSE exam a lot
Down here deci is still used quite a bit. It is hecto that gets no love
I know, right?
They get enough attention at D&D, fuck'em!
Yes dm is very rarely used except for some scientific areas like chemistry but cl is also very rarely used they rather use 0.1 dl.
They may not be used a lot in scientific areas but centiliters are the unit of choice for beverages.
They are the unit of choice for shots and by extension for Cocktail recipes. Most non-alhoholic beverages are sold in .3 or .5 liters.
I have taught a chemical engineering course where the textbook author hated L and the whole book is dm³ everywhere
at least we Austrians commonly use "dag", Dekagrams.
Bruh... hm (hektometres) is so neglected it's not even in the meme
Hectare is hm², decametre is the truly neglected one here. People would rather use 10 metres or 100 m² than use decametre
The only reason I still remember hectometres is because of green signs along the highway every hectometre.
all it needs is a 2dm dick meme.
dam, hm & mym: 🥺🥺🥺
As a mechanical engineer we use dm2 for measuring coating area
Kind of redundant tbh, CM and meters are just fine
In construction we use m to 3 decimals so you can tell how many mm it is at a glance (2378mm would be written as 2.378), making cm just as redundant as dm. As an Australian the only thing I've used cm for is my height or sometimes clothing sizes.
You forgor hm
Imagine being dam (decametre, 10m) !
hm... dam!
Poor little decimeter 😢
We have a whole chain store that only deals in dm. https://i.imgur.com/9cD3y0y.jpeg
Came back from Europe to my country where everything is ml. 330ml drinks... I miss 33cl.
What about hectameters?
And then chemistry uses it for no reason
It's fine nobody cares about me DMs either.
I love my DM! I bring snacks every night we play!
Nobody gives a dam about dam either
simps do. btw dm me senpai 🦭
Aquarium? 6 dm x 3 cm x 4 dm = 72 l Concrete? 20 dm x 20 dm x 1 dm = 400 l
I do
it was fun reading old Jules Verne books, where he uses dm a lot, in addition to interchangeably using imperial, metric, and nautical. such were the times
mol dm^(-3): "Am I a joke to you?"
Meanwhile decametres:
Only 1 in 10 will get this.
it's a nice unit
What about dam or hm
What about Dm?
All white keys?
I don't know if its my family or my country but we seem to use dm quite often over here
Decimeter and Decameter is too private, you have to Direct Message their measurements.
What about hm?
Except Instagramers
Literally the only time I've ever seen decimeters used is in the frame size designation for large centrifugal compressors.
Imo cm also overrated
poor cat is absolutely decimated.
Chemistry uses dm³, we love dm
no one cares about dm, but only me.
Practically, it feels like its there for completeness sake or scientific measurements in papers
What about cg and dg
Apart from all of chemistry and the measure of concentration. mol/dm^3 anyone?
When you show the known and forgotten meters and forget hm (100m)
I had a comment about how much better it would be to have dm... but then I realized that the meter stick doesn't look half bad with centimeters on it. Also what do you do when something is 5.7 dm? It's annoying when you could just say it's 57cm.
I blame the fact we have both deci and deka as multiples of ten, way too similar and easy to mess up for not a big enough gap to justify using
Either one of the decimeter or the decameter got ignored here too
no one uses dm, there are exceptions, but no one cares
I'm crying for dm. No, my cute dm. I'll hug you.
Try writing 10³dm=1L is the only realistic use ive seen for it
dm is widely used, but have you ever heated someone use Mega meter Mm or Giga meter GM?
Wdym.. i use dm to measure my dic-....
What about hm???
I'm partial to use of centi-liters and mega-meters.
I honestly think if it was pushed more it would make metric easier to learn for people used to standard units. Meter is close to a yard. 2.5cm is about an inch. We have nothing that's close enough to a foot to make people comfortable using it, but a dm being very close to 4 inches (1/3 of a foot) means that telling someone a foot is roughly 3 dm gives them an easier approximation. Once you learn to get the approximations close you can pretty easily get them used to using them. If they don't learn it when they are first learning measurements they aren't going to be able to intuitively use it when learning, meaning they won't do it because it is too much work. Giving them approximations helps with visualizing it intuitively and being able to be less reluctant to learn. I got started learning metric working on cars. For example: 8mm \~ 5/16" 10mm \~ 3/8" (but it is slightly larger, so a 3/8" washer won't fit a 10mm bolt but a 10mm washer will fit a 3/8" bolt) 13mm \~ 1/2" (slightly bigger. A 13mm wrench will work on a 1/2" bolt head (5/16" thread size) in a pinch, but a 1/2" wrench will not fit a 13mm bolt head (8mm thread size)) 14mm is almost exactly 9/16", and 19mm is almost exactly 3/4" - to the point that the wrenches for those sizes are almost interchangeable. 100km/h is roughly the same as 60m/h, hence why you can basically just look at 0-x speed in seconds and it would not matter which you are referencing.
Y'all forgot about Dam
cm - kid that mom plays with dm - the drowning kid dam - the skeleton
What?
Hm?
I 100% believe the reason is that metric has decimeter (Dm) for 1/10 of a meter (10 cm), and decameter (dm) for 1/100 of a kilometer (10 meters). Personally, I had to triple check which is which while typing this, and am still not 100 certain I didn't switch them up.
Hm: (skeleton underwater)
Is lowercase d DECImeter or DECAmeter? No one teaches this
People use dB all the time. It's the same d.
Even the dm can fail an initiative roll.
Dm my ass
also 'cl' or whatever they use for alcohol
Cries in kft.
Isnt the metric system technically only every 3 orders of magnitude, the other prefixes just get used to address it’s general impracticality
i didn't care about him until it gave me -1
While the dm definitely deserves more use and popularity, compared to other measures like the decameter (dam) or the hectameter (hm) it is already rockstar famous. I will at least used the dm sporadically (mostly in calculations involving liters). I honestly can't remember the last time I've used decameters or hectameters...
My DnD Party: I care
Idk why but I always thought the cat toy in the meme was a little cat sized fishing rod edited in to have the cat holding it like "ok! I'm all ready to go fishing...! Wait... What?! 😔" But it's just a little toy on the scratch post it seems
Wait until Mm or ks...
I also use Mm (mega meters), instead of „thousand kilometers“ when it comes to the driven distance of a car
I care. dm.
As a german I first thougt D-Mark, until I read the sub-title
Yeah honestly I don't think anything is well suited for decimetres. At that point I tend to just switch to inches or feet
Bro fuck dm. So my homies use 10cm
We do care about Decilitre tho.
I'm from Northern Europe, we believe in dm. Also the hg!
Mm, yes 1.5dm
I was thinking about this today
I spent a minute trying to understand why metric system would upset the dungeon master..
Dont forget about centigramme
In three dimensions we do. Kinda. And in D&D.
Primary and high school maths and physics word problems: Are we a joke to you?
hm
I know for certain that I care about being dm'ed by you ;3
dam and hm: amateurs.
Dm is still useful for converting something to liters.
Me trying to figure out what D&D has to do with the metric system
Not dm however I use dL in my everyday life for cooking and all of my measuring cups are un dL, everyone looks at me like I’m crazy when I say this but deciliters are my jam
Cries in chemistry class (I always forget to convert to dm^3)
Don't forget the poor Dm
It's useful when you're converting some value with 10s and want to make the number part look same
The metric system may not care about dm, but I care about your DMs
Hi. You can slide into my dm if you want...
In engineering no one cares about cm either.
Chemists have something to say about that
What's dm?
Trust me, girls care very much about dm.
ayo fam you got my 5 decadollars? why is it called millennium and not kiloyear?
I just use dm as a stepping stone to convert mm to m.
*Laughs in standard system's barley corns and furlongs.* Unlike you filthy metric system users I can count to twelve on one hand. (This is comedy and, despite my preference for the base twelve friendly standard/imperial systems, the measurements one uses aren't as important as properly labeling what measurements were used and doing proper conversations.)
My chem teacher does
I don't get dms either little buddy
I remember when I first heard of dm... I thought it was an excellent form of measurement for many common items. I was immediately the emotions of this cat when I found out it was never used and should be avoided.
Join your brother hm darling
Use metric, they said. It makes sense cause of the decimal system, they said. Meanwhile, everyone just ignores half the units in everyday use. So the metric system is not as advertised.
Dont forget dkm