IdRatherBeSkiing
Sherbert is NOT and NEVER WILL BE ice cream.
They legally have to sell meat in metric here. But you can't get 500g of ground beef for example. You get 454g which co-incidentally is exactly 1 pound.
International News
- Thread starter JHDK
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JHDK
Release Robin's Bra
Yeah right. That's the super easy way to do it. 54* 20. Is 1080....minus 54 from that and you have the answer, 1026... I could do that pretty quick, but it's still going to take probably about 10 seconds whereas I can type it in my phone and get it to you in under five.
HecticArt
Administrator
That's pretty much it.
I've got some of the basics drilled into my head, and do some of the same tricks Sad does, but generally, if it needs to be right, there is always a calculator in arms reach.
I also have to do a lot of math with fractions of feet/inches. I've got a special calculator for that. It takes way too long to work all of that nonsense out in your head on on paper.
JHDK
Release Robin's Bra
I have a food scale in the kitchen next I think of this and no one's near I'm going to measure some meat And I'll report back my metric system, weight of the incredibly girthy and thick and long and just overall attractive looking meat I'm thinking of measuring.
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scotchandcigar
All I wanted was some steak
Car guys (like I used to be) would know engine displacement in both cubic-inches and liters. Like the famed Mustang 5.0 is 302 cu-in. And the Corvette 350 cu-in is 5.7 liters.
JHDK
Release Robin's Bra
I know that type of 3D shit is length times Width times height but that's just me Repeating shit from school. Like I mean I could do that math but measuring a 3D space like a volume that kind of baffles me. The volume has weight depending on what's inside of it so that's got to fucking effect it somehow. But now I just think I sound stupid....
I imagine this is something you deal with all the time hectic.... Got any very basic like first day 101 type thoughts/ lessons about this?
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scotchandcigar
All I wanted was some steak
You got it right when you said volume. Like a can of soup has a height, and because it's round (cylindrical), the width is measured from the diameter (distance across) multiplied by pi. So the volume would be like how much soup does the can hold.
A car engine is like 4 or 6 or 8 soup cans. And a cubic inch is a measure of volume; it's a cube that's an inch wide/long/high. With the metric system, they use liters. I believe a liter is a cube that's 1 meter in each dimension.
HecticArt
Administrator
Sorta yes, sorta no.
You and Scotch have the idea. Length x width x height.
My day to day has more 2D calculations. The HVAC engineers have to worry about the math for 3D volumes. If I need anything more than a simple LxWxH calculation, I make the computer do it. It’s easier, faster, and more accurate to click on all of the corners and have the computer tell you what something is than do the math yourself. Plus, the software remembers what you did, so if a wall or something moves, it’ll tell you the new number without having to do it all over again.
JHDK
Release Robin's Bra
Okay I'm going to sound dumb again but here we go... So I would imagine the whole reason we measure things cubically I is to figure out either how much can go in it (volume} or how much space it will take up on something we measure normally like an acre or whatever.
But wouldn't the weight of the volume almost always have to be taken into consideration? Like every time you're figuring out what the volume of something is?
You guys see what I'm saying here right? Like if I take a piece of paper and I make it into a cube I can measure It's cubic inches and then get its volume. But if I actually want to fill that volume, the weight becomes very important.
If I fill the paper with pebbles they will quickly compromise the stability of the container due to their weight. If I fill the paper with my ego after you all called me Newman it will never have any stability issues to worry about.
But wouldn't the weight of the volume almost always have to be taken into consideration? Like every time you're figuring out what the volume of something is?
You guys see what I'm saying here right? Like if I take a piece of paper and I make it into a cube I can measure It's cubic inches and then get its volume. But if I actually want to fill that volume, the weight becomes very important.
If I fill the paper with pebbles they will quickly compromise the stability of the container due to their weight. If I fill the paper with my ego after you all called me Newman it will never have any stability issues to worry about.
IdRatherBeSkiing
Sherbert is NOT and NEVER WILL BE ice cream.
You are refering to density and yes the density of the substance will determine the weight of a given volume of substance. I have long forgotten any useful calculations or even the measurements involved but I believe in metric the density of water is 1.
scotchandcigar
All I wanted was some steak
I don't really get this. The volume of displacement of a car engine determines how much power you will get, and how much fuel it needs. I don't see where weight comes into it.
Same with a beer mug. If you want a glass that'll hold a pint of beer (16 ounces), you can measure the volume. You can measure the volume of a trash barrel, and if you fill it with rocks or concrete, it'll be very heavy. But if you fill it with trash, it won't.
You can calculate the volume of an oil tank for home heating oil, so you know how much oil it can hold. And then when the oil truck comes, they will fill it up. I'm not sure where weight is involved. The oil tank is obviously made of steel or something, and it's mounted to the basement floor. I'm sure that someone figured out the material part of it, quite some time ago.
JHDK
Release Robin's Bra
Okay I started this off saying I don't know what the fuck I'm talking about so that's our baseline here all right. But I appreciate you explaining this to me...
Yeah when I was a kid we had an oil tank under our house and the oil truck would come once a year to fill it up in the winter. I hadn't thought about that in forever scotch, thanks for jogging that memory.
Anyway...
You used the trash barrel example... If I have a Rubbermaid trash can I can calculate the volume somewhat easily and I could fill it up with household trash. But if I pour concrete into it and then try to pick it up, the container itself will collapse.
Now maybe I sound really dumb here but cubic units measure ONLY how much space something has right?... Without consideration to the weight of what will be filling that space.
But who cares how much space there is if we don't know anything about the density or the weight of what can be put in that space?
It just seems to me that the volume of what the thing can hold is only a measurement of space.
Once I know the amount of space I have, I also need to know the weight of the other shit I have that I'm going to use to fill that space.
Because what practical use do you have knowing one without knowing the other?
Yeah when I was a kid we had an oil tank under our house and the oil truck would come once a year to fill it up in the winter. I hadn't thought about that in forever scotch, thanks for jogging that memory.
Anyway...
You used the trash barrel example... If I have a Rubbermaid trash can I can calculate the volume somewhat easily and I could fill it up with household trash. But if I pour concrete into it and then try to pick it up, the container itself will collapse.
Now maybe I sound really dumb here but cubic units measure ONLY how much space something has right?... Without consideration to the weight of what will be filling that space.
But who cares how much space there is if we don't know anything about the density or the weight of what can be put in that space?
It just seems to me that the volume of what the thing can hold is only a measurement of space.
Once I know the amount of space I have, I also need to know the weight of the other shit I have that I'm going to use to fill that space.
Because what practical use do you have knowing one without knowing the other?
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IdRatherBeSkiing
Sherbert is NOT and NEVER WILL BE ice cream.
The volume of the substance * the density of the substance = the mass of the substance. Mass and weight are essentially interchangeable at 1 earth gravity.
scotchandcigar
All I wanted was some steak
Knowing the volume is necessary, if you need to figure out the weight of the liquid or solid going into a container.
Yes.
But I specifically provided several examples where you just want the volume, and the weight of whatever's filling that volume doesn't matter. With the beer glass, or the engine displacement, or the trash barrel, or even the oil tank, we're just interested in volume. The weight of what's inside is not pertinent.
IdRatherBeSkiing
Sherbert is NOT and NEVER WILL BE ice cream.
I was answering his specific query where he wanted to know the mass.
JHDK
Release Robin's Bra
Okay first off I'd rather thank you for that. And yes Scotch, you did provide those examples but him posting that equation actually I don't know. Kind of made me understand it better. I was picturing volume as only things that had empty space inside them to hold something else. I was clearly wrong about that and the two of you got me to figure that so thanks. Also suck it. I'd rather you you're the worst and I hate you. Same to you Hector. If you're reading this at some point, fuck you also.
But I'm still confused as to how to calculate how much weight you can put inside of something without compromising the thing you're putting it in.
Like my car says it can fit like 1500 lb or something like that. There must have been some sort of calculation they did to figure that shit out.
But I'm still confused as to how to calculate how much weight you can put inside of something without compromising the thing you're putting it in.
Like my car says it can fit like 1500 lb or something like that. There must have been some sort of calculation they did to figure that shit out.
scotchandcigar
All I wanted was some steak
That's why I said "yes". Were you looking for some other response?
That gets into structural engineering, which has nothing to do with volume. They look at the weight distribution, and the tires, and the suspension etc. and figure it out. Same with towing capacity.
All I was trying to get at earlier was that often, you need to know the volume of something, but not the weight of whatever fills that volume.
JHDK
Release Robin's Bra
I shouldn't have used a car example when I knew you would be the one answering because you would have like all your car knowledge bullshit the way I talk about watches like nerd shit.
But a few posts ago you mentioned getting a pint in like England or whatever at a bar. So it's pretty easy to calculate that that the mug will hold pint of liquid... And of course, in this example the glass is way stronger than the liquid. But I mean if you were like the first guy to ever try it, how would you have any idea that you could pour liquid into this cup and the cup wouldn't just shatter there must be a calculation for that
scotchandcigar
All I wanted was some steak
If you're getting at something like the weight capacity of a box, or the maximum weight you can fill a hefty bag, then yes, people have figured that out. It's listed on the product, or the packaging. Those fall under the category of materials science (which I had 2 years of in college). They look at the weight distribution of the stuff, and the tensile strength of the container, and see how many pounds-per-square-inch it is.
What does this have to do with volume, or international news?