Does 1 kg =

[A320sRcool]

does 1kg = 1 litre

[Whirlygig]

Sometimes. Depends!

Cheers

Whirls

[celtic mech]

In relation to what? If we are talking about water then yes 1Litre of Water= 1 Kg. This is related to the Specific Gravity. (the specific gravity of water =1 and everything is in relation to this). Take for example fuel...a general figure of .8 specific gravity is used (depending on the day i.e. temp and pressure this can change slightly). this means that 1 Litre of Fuel = .8Kg

[bjkeates]

Use the equation:

Mass = Density x Volume

So if you take the density of water to be 1, then yes, 1 litre of water weighs 1kg.

(It'd be better if I'd explained it using the actual units as well, but it was A-level physics and I can't remember it all off the top of my head, and my brain's a bit fried revising Galois Theory at the moment...)

[Sensible]

For instance, 1 litre of mercury weighs much more than say 1 litre of water which is heavier than 1 litre of avgas which is heavier than 1 litre of butane. As mentioned above, the specific gravity of the substance is the important factor. Mercury = sg13.5 Water = sg1 avgas = sg.8 Therefore 1 litre of mercury weighs 13.5 kg and 1 litre of avgas weighs .8 kg and 1 kg of water weighs 1 kg. Hope that helps.

[FougaMagister]

1 litre of water = 1 kg = 100 cm3. That's the beauty of the metric system, one can easily relate volumes to weights etc.

Cheers :cool:

[OpenCirrus619]

Last time I looked 1 litre was 1000cm3.

OC619

[FougaMagister]

... of course. I guess a "0" got lost somewhere on the keyboard... sent a SAR party to look for it!

Cheers :cool:

[Cron]

What is Galois Theory?

[Dick Whittingham]

It's an old French combustion theory, now replaced by the Gitane conjecture

[Whirlygig]

But surely the Russian Sobranie hypothesis was the original and still holds true for small values when filtered.

Cheers

Whirls

[bjkeates]

What is Galois Theory?

It's all to do with the theory of polynomials, irreducibility, fields and extensions and lots of other weird and wonderful abstract algebra that I don't really understand.

[Cron]

Thanks Bjk, I think those others (see above) are just not educated like what we am and do not have stable, sensible enquiring minds with a scientific bent.

[Happy Wanderer]

You lot need to get out more ;)

[Gargleblaster]

Talking volumes (!), there's a scientific constant that I find amusing, it's called "Munck's constant", and it equals one cubic light-year of beer, it's named after a professor at a technical university somewhere.