Metric vs the other one

[TheYonderGod]

Imperial but it sucks... I use Celcius for computer temperatures though ;P

[That Norwegian Guy]

Weight: I honestly have no firm  grasp of the weight of a pound or a kilogram.

 

A kilogram is the weight of one litre of water.

 

A pound is one and a half cups of human male adult incisor teeth.*

 

*I actually have no bloody clue, but it's something like that.

[Hyydrah]

I was watching Linus' video about the Razer Edge and noticed that when talking about the weight of the device he use pounds instead of grams.

So my question to the forum users, which of the two measurement systems do you use?

Also no matter the result of the poll, I would like it if Linus added metric system readings to his videos, because frankly pounds inches and the likes mean absolutely nothing to me, and probably to other viewers as well.

Very good idea, but personally I'd like him to remove all Imperial measurements entirely.

[Hyydrah]

Australian here. Imperial system seems like a lot of work to me. The metric base 10 system seems so much simpler and more accurate I just don't see why the Yanks are still stuck on the old way. Even England has moved over. I though Canada used metric anyway?

Our products require there to be metric labeling, but often times Imperial will be included as well. In speech, people tend to use Imperial except when referring to many scientific quantities.

[Jozi]

Everything in my country is metric. Only screen sizes are inches.

[smjpl]

90% of measurements, I would use the metric system. The only imperial I use would be for speed (mph) and distance (miles) when referring to travelling. Ireland only swapped to the metric system for road signs a few years ago so we are still used to it. Britain still has imperial road signs. Actually I would also still say weight using stone but only really for body weight. Anything much smaller or bigger than body weight, I would use kilos/grams or tonnes (metric tonne that is).  

[gjrud]

well that's not physics at all that is systems of reference and units because on metric system force is not kg is Pa as main unit; and the fact of considering two different kinds of "weight" make thinks quite different

I'm sorry but aren't kg and Pa two different type of units? as far as I know Kg is for mass and Pa for pressure, with Pa being equal to N/m² and N (unit for force) being kg * m/s².

so Pa is equal to kg/(m*s²).

 

To summarize so it's easier to read what I mean:

• Mass is measured in kg
• Force is measured in N and it's mass (kg) * acceleration (m/s²)
• Pressure is measured in Pa and it's Force (N) / surface (m²)

Am I missing something?

 

edit: you said that the gravity acceleration you are doing is not constant (9.81). This is normal, the force of gravity is equal to (G*m₁*m₂)/r² and it's measured in newton.

To calculate the gravity force over the Earth you use F_g = m*9.81 because if you take the equation above and you insert the values for G (gravitational constant, 6.67384*10^-11 N*(m/kg)²), m₂ (Earth's Mass, 5.9736*10²⁴ kg) and r (Earth's radius, 6,371 *10⁶) and solve it you will end with F_g = m₁ * 9.81.

 

I also changed all "^2" into "²"

[Rowlett54]

 use imp because i live in 'merica. but i hate it

I wish we would start the transition to metric already (America). It would simplify a lot of problems/inconveniences. Since metric is Base 10, it would be a lot easier to learn than whatever random intervals Imperial is measured at. 

[Kyo_Ma]

I mostly use metric now because college science classes are brainwashing me

[Nort]

Canada's measurement systems are messed up.

 

Basically, most people over 60 still use imperial.

Everyone else uses this:

 

Speed: Metric  (Speedometers have secondary markings for miles.)

 

Length/Height/Weight: Imperial

 

Liquids: Metric(Excluding cooking)

 

Temperature: Metric

 

Anything 'official': Metric

 

The schools are required to teach imperial and metric, I'm assuming this is because of Canada and the US being big trade partners.

[ConfusedDolphin]

 Even England has moved over.

 

What are you trying to say about England :) 

[Nicktrance]

I generally use metric because the decimal system makes more sense, and I've always used SI units. Although there are some cases where I'm more used to using imperial because that's how they're usually measured (such as display sizes, pints of beer, wheel sizes etc.)

[Rhotis]

People that use metric for speed just want to feel like they are going fast when they aren't.  

 

People that use kilograms instead of pounds just want to feel like they are not big fatties

[Nort]

People that use metric for speed just want to feel like they are going fast when they aren't.  

 

People that use kilograms instead of pounds just want to feel like they are not big fatties

 

This assumes that anyone that has ever used metric knows imperial measurements so they can compare the two...good job?

[Rhotis]

This assumes that anyone that has ever used metric knows imperial measurements so they can compare the two...good job?

 

Its called jokes son,  don't be so defensive :P

[Nort]

Its called jokes son,  don't be so defensive :P

 

Never know, some people can be that ignorant. :P

[algoat]

Kilograms are universally used for measuring drug weight holmes.

[FireFox]

At school we was taught both but I much prefer metric and since Australia is metric that is OK by me :)

10mm = 1cm
1,000mm/100cm = 1m
1,000m = 1km
1,000g = 1kg
1,000kg = 1 tonne
1,000ml/100cl = 1l

it's just a far superior measuring system

[Nertballs]

metric is much better for smaller things, or where calculations are key, but imperial is still the best standard for things like height, weight, and all that. more just out of tradition than anything else. you're a lot more likely to hear someone say they're 6 foot other than 1.8m if you get me. 

[normandy4]

you should add on option to the poll of both, many of the people in here say they use both.

[SinTonNiSon]

I'm sorry but aren't kg and Pa two different type of units? as far as I know Kg is for mass and Pa for pressure, with Pa being equal to N/m² and N (unit for force) being kg * m/s².

so Pa is equal to kg/(m*s²).

 

To summarize so it's easier to read what I mean:

• Mass is measured in kg
• Force is measured in N and it's mass (kg) * acceleration (m/s²)
• Pressure is measured in Pa and it's Force (N) / surface (m²)

Am I missing something?

 

edit: you said that the gravity acceleration you are doing is not constant (9.81). This is normal, the force of gravity is equal to (G*m₁*m₂)/r² and it's measured in newton.

To calculate the gravity force over the Earth you use F_g = m*9.81 because if you take the equation above and you insert the values for G (gravitational constant, 6.67384*10^-11 N*(m/kg)²), m₂ (Earth's Mass, 5.9736*10²⁴ kg) and r (Earth's radius, 6,371 *10⁶) and solve it you will end with F_g = m₁ * 9.81.

 

I also changed all "^2" into "²"

As i said that thing only works in a very weird units system which only engeneers use

 

every system has 3 main dimensions, both imperial and metric use as dimensions Lenght; Mass andTime

 

but the engeneering system uses one more dimension which is Force

 

so metric & imperial. M, L, T

 

engeneering system: M,L,T,F

 

so Pa cannot be used in that weird system because it's dimensions are [M]*[L]*[T](-2) which as everybody can see is a combination of the rest-------units: Kg*m*(s^-2)=N/m^2=Pa

 

so in the engeneering system any force measure must have only one dimension [F] because is considered a main dimensionunit:

 

so, how are they gonna call it?

 

unit of force: Kgf    (force kilograms )                                            unit of mass in engeneering system :Kgm (mass kilograms)

 

because that unit stuff is not confusing enough they decided to call it just like it's mass brother, just for the lolz i guess, because i think we can agree that is pretty retarded to call same (except for the tiny m or f depending on the case,

 

which also uses to be omited because you are suposed to be an engeneer and you have to know what your reading/talking about) two thing that for almost aaaaall time were one dependant of the other.

 

just to add a bit more of light

 

E.G:

 

F=m*a 

 

Engeneering system

 

F=m*a is not dimensionally consistant; why?  Because Force (F) is considered a fundamental dimension so that means that it also has to appear in the other side of the ecuation

 

(dimensions of a= [L]*[T]^-2      units of a= m*s^-2

 

[F]=[M]* [L]*[T]^-2   the units of the ecuacion right now are :    Kgf=Kgm*m*s^-2

 

so they fixed that fokin mess that they fokin created just for fokin fok the fokin students this way

 

gc=9.81[(m*Kgm)/(s^2*kgf)

 

so now if we solve  gc*F=m*a  is dimensionally correct because in both sides we have m*kgm/s^-2

 

for more info check 

Basic Principles and Calculations in Chemical Engineering:International Edition (page 8 - 10 in the spanish edition) which actually was my first engeneering book

[IdeaStormer]

Well use both so can't vote as that is not an option and mad because the U System is also not an option, as in 1U, 2U, 3U, 4U, etc. I use it as much these days B)

[pierrelucsav]

I prefer metric, but I have to use both.

[Hoppa]

I don't mind using inches etc for TV measurements

[Hoppa]

But i prefer Linus as a unit of measurement