Zero Degrees

Jim Daniels

It is zero degrees Celsius in Dublin and it is twice as cold in London.

What is the temperture in Celsius in London?

Somebody meant this as a joke, but its wrecking my head!!
Is there an answer, without going into absoute zero and all that...?

Hobbes

2 * 0 = 0

smoke.me.a.kipper

you should have a warning saying that this will wreck peoples heads. gah!! to hard!!

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<font face="Verdana, Arial" size="2">"It is hard enough to remember my opinions, without also remembering my reasons for them!"
-Nietzsche</font>

Kali

Celsius/Kelvin

100/373.15
0/273.15
-273.15/0

if we assume that twice as cold = 1/2 the temperature.. (as twice as hot = 2x temperature)

then simply its 136.575K in London or -136.575 Celsius, damn thats cold

Therefore who ever said its twice as cold is wrong.

Jim Daniels

Yeah, I guess you are all right.
It doesn't make sense to say "twice as cold".

Its a bit like asking "how high up do you have to be before you are in the Sky"...

nesf

you could use the term twice as cold if you had a reference point, i.e. using a non perfect gas scale, contraction of metal perhaps, like in a thermostat.

Jim Daniels

Ah here, what????!!!

is it incorrect to say that 40 C degrees is twice as hot as 20 C degrees?

DeadBankClerk

if it is twice as cold in london, then dublin's temprature is twice londons temprature.
(if a/2 = b then 2b = a)

temprature in dublin = Td
temprature in london = Tl

Tl = Td/2;

Td = 273.15k

therefore Tl = 273.15/2

Tl = 136.575

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- Dead Bank Clerk -
You must defeat my dragon
punch to stand a chance.

Cake Fiend

Bah, Baz and Kali got there before me

Hobbes

X = 0 (temperture)

Y = -2 (twice as cold).

X x Y = 0

It could be 15 times as hot and still be 0.

We are basing this on Celsius.

How the hell people can make this more complicated then it actually is, is beyond me.


[This message has been edited by Hobbes (edited 23-05-2001).]

adnans

its freezing brass monkeys in London i'd say.

adnans

nesf

<font face="Verdana, Arial" size="2">Originally posted by Hobbes:
X = 0 (temperture)

Y = -2 (twice as cold).

X x Y = 0

It could be 15 times as hot and still be 0.

We are basing this on Celsius.

How the hell people can make this more complicated then it actually is, is beyond me.


[This message has been edited by Hobbes (edited 23-05-2001).]</font>

But Celsius is based on a theoretical system that is known not to exist. I was merely giving an easier system to use for comparison, its easier to speak in terms of something like, the metal's expansion ,verus size at room temperature, is half.

Rather than talking in pressure, volume products.

I would find the former easier to grasp conceptually. But thats just my opinion.

Lump

I'm guessing -136.5 Degrees Celsius


0 Degrees Celsius = 273 Kelvin

273/2 = 136.5

136.5 - 273 = -136.5 Degrees Celsius

Lump

GOt there before me too.....


John

Hobbes

That answer is BS though. You are basing it on a seperate measurement system. May as well use Farenheight.

Jim Daniels

I know Hobbes, yeah.
But if its twice as cold, how can it be zero degrees, which is what Dublin is????

Baz_

Well first of all you need to get a good definition for cold i.e. at what temperature do you consider it cold, after all hot and cold are just different measurements from the same linear set. Then you work back from that til you hit zero and continue on past 0 the same number of steps it took you to get from cold to zero.

You could probably also use kelvins or something. However I think the answer is meant to be zero.

Hobbes

<font face="Verdana, Arial" size="2">Originally posted by Jim Daniels:
I know Hobbes, yeah.
But if its twice as cold, how can it be zero degrees, which is what Dublin is????</font>

because the person saying it is an idiot?

Next you'll be wanting to know how deep half a hole is.

nesf

I think the problem comes from the fact that 0 degrees celcius is a fixed point in the scale, i.e. the temperature at which water freezes. I'm not sure you could say that its so cold that the water froze over twice

I agree with Hobbes though, still 1 degree celsius = 1 degree kelvin.

Shiminay

<font face="Verdana, Arial" size="2">Originally posted by azezil:
actually water can be still liquid @ 0 degrees C, i remember doin this experiment in physics class ...NO NOT AGAIN AAAHHHHHHHH!!!
(p.s. i never liked physics ) </font>

You're talking about the triple point - where water can exist in it's 3 states at the same time.

That's a cool experiment

Anyway - twice as cold in celcius is still the same as saying it's twice as cold in kelvin. it doesn't matter what unit of measurement you're using - the temperature is all the same. Therefore, if the temperature in Dublin is 0 and London is twice as cold then the temperature is 136.575K or -136.575C.

This is FACT!!!

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Dav
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Lucy_la_morte

Maths, Physics..

*Bursts into tears*.

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Miaow.

Lucy la morte.

azezil

whats worse is i was put into the highest class for physics, much to my horror as i was the only person in the class who was doing ordinary level maths!!

higher level physics with only knowledge of ordinary level maths isn't fun!

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"just because you're not paraniod, doesn't mean they're not after you!"

nesf

<font face="Verdana, Arial" size="2">Originally posted by azezil:
whats worse is i was put into the highest class for physics, much to my horror as i was the only person in the class who was doing ordinary level maths!!

higher level physics with only knowledge of ordinary level maths isn't fun!
</font>

Technically, one can do honours physics at leaving cert level with good primary school maths, so long as you can read scintific notation.

Ohhh my wasted youth.

Plus pure water doesn't reach the triple point at 0 degrees so HA!

It's 0.16 degrees celsius or somesuch lol


[This message has been edited by nesf (edited 24-05-2001).]

TheWolf

ahhhhhh! stop it, my head hurts!

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arrrrRRROOOOOOOOOOoooo...

D-Generate

Its really -8.89Celsius
32 Farenheit = 0 Celsius
16F = -8.89C

Quit talking Kelvins, thats too nerdy.

smoke.me.a.kipper

<font face="Verdana, Arial" size="2">Originally posted by D-Generate:
Its really -8.89Celsius
32 Farenheit = 0 Celsius
16F = -8.89C

Quit talking Kelvins, thats too nerdy. </font>

finally theres some sense among all the physics bull. i'm so relieved i dropped physics. way beyond s-m-a-k's mental capabilities.

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<font face="Verdana, Arial" size="2">"It is hard enough to remember my opinions, without also remembering my reasons for them!"
-Nietzsche</font>

azezil

<font face="Verdana, Arial" size="2">Originally posted by nesf:
I think the problem comes from the fact that 0 degrees celcius is a fixed point in the scale, i.e. the temperature at which water freezes.</font>

actually water can be still liquid @ 0 degrees C, i remember doin this experiment in physics class ...NO NOT AGAIN AAAHHHHHHHH!!!
(p.s. i never liked physics )

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"just because you're not paraniod, doesn't mean they're not after you!"

Lump

The triple point of Pure Distilled water is .76 Degrees C isn't it?? /me has forgotton his Physics. Also Physics owns j00.


John

P.S I meant to say C not K



[This message has been edited by Lump (edited 29-05-2001).]

nesf

ahh no, .27 K would be very close to absolute zero.

the triple point is 273.14 or someting of the form 273.xx

Methinks this argument has lost all direction

Baz_

It sure has but I can't help but further pulling the discussion from it's proper path by saying that fahrenheits for dicks and kelvins rules.

So if the irish use a measurement which can be very easily translated into kelvins, and kelvins rule, then it could be said that irish can almost cerainly (and very easily) be translated into ruling. Also since americans use fahrenheit they must be dicks which means that we Irish rule the american dicks. woohoo.

SantaHoe

<font face="Verdana, Arial" size="2">Originally posted by Jim Daniels:
It is zero degrees Celsius in Dublin and it is twice as cold in London.

What is the temperture in Celsius in London?
</font>

-5ºC

nesf

<font face="Verdana, Arial" size="2">Originally posted by Baz_:
It sure has but I can't help but further pulling the discussion from it's proper path by saying that fahrenheits for dicks and kelvins rules.

So if the irish use a measurement which can be very easily translated into kelvins, and kelvins rule, then it could be said that irish can almost cerainly (and very easily) be translated into ruling. Also since americans use fahrenheit they must be dicks which means that we Irish rule the american dicks. woohoo.</font>

Your ideas intrigue me, where might i be able to subscribe to your newsletter?

Lump

What I wonder about is where Deadsanta got -5


John

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