Warp wrote:
> Stephen <mca### [at] aoldotcom> wrote:
>> On 08/07/2010 5:07 PM, Darren New wrote:
>>> What's the metric unit of pressure like this, out of curiousity?
>>>
> 
>>   1 psi equals 6,895 Pascals or N/m^2
> 
>   Isn't it confusing that "pound" is both a unit of mass and of force?

No, it is not a unit of mass:

http://en.wikipedia.org/wiki/Slug_(mass)

Regards,
John

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>> See the other thread about Andrew's heating system, it's also useful that 
>> 1 bar ~= 10 metres of water for quick estimations.
>
> Yes, that's the only place I've encountered the term.

In the UK I've seen it on any appliance that is connected to the mains water 
or gas, also it's mentioned on tyres and pumps, but most people use psi 
still for that.  Here in Germany bar is used for everything, you don't want 
to be setting the electric tyre pump at the gas station to 24 bar by mistake 
:-)

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Warp <war### [at] tagpovrayorg> writes:

> scott <sco### [at] scottcom> wrote:
>> >> it's also useful that 1 bar ~= 10 metres of water for quick estimations.
>> >
>> >  I didn't quite understand that.
>
>> It's useful for quick estimations involving water (one of the most common 
>> pressurised fluids you come across) because it's a multiple of 10.
>
>> eg a water tank 4 metres above the tap, pressure at the tap is 0.4 bar.
>
>> or, 2 bar coming into your house, what's the pressure at the valve in your 
>> roof 6 metres up?  1.4 bar
>
>   You mean that when you dive, each 10 meters of depth adds approximately
> 1 bar of pressure?

Yep. Pressure in a liquid is h*g*density (g being 9.8 m/s^2 in most
places). 

Since water has a nice density, it works out approximately (take g to be
10).

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John VanSickle <evi### [at] hotmailcom> writes:

> Warp wrote:
>> Stephen <mca### [at] aoldotcom> wrote:
>>> On 08/07/2010 5:07 PM, Darren New wrote:
>>>> What's the metric unit of pressure like this, out of curiousity?
>>>>
>>
>>>   1 psi equals 6,895 Pascals or N/m^2
>>
>>   Isn't it confusing that "pound" is both a unit of mass and of force?
>
> No, it is not a unit of mass:

That's what I thought, till I looked it up.

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On 09/07/2010 11:42 AM, Invisible wrote:
>
> Aye.
>
> (Or should that be "i"?)

Nae, aye.

-- 

Best Regards,
	Stephen

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On 7/8/2010 9:49 AM, Tim Cook wrote:
>
http://www.helium.com/items/1882339-doomsday-how-bp-gulf-disaster-may-have-triggered-a-world-killing-event

Just glanced at the article... it smacks of "Oh my god teh world is 
going to end!!!111eleven11one!!!111eleventyone

-- 
~Mike

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Warp wrote:
> Stephen <mca### [at] aoldotcom> wrote:
>> On 08/07/2010 5:07 PM, Darren New wrote:
>> > What's the metric unit of pressure like this, out of curiousity?
>> >
> 
>>   1 psi equals 6,895 Pascals or N/m^2
> 
>   Isn't it confusing that "pound" is both a unit of mass and of force?

And of currency :)

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Am 17.07.2010 05:02, schrieb Nicolas Alvarez:

>>    Isn't it confusing that "pound" is both a unit of mass and of force?
>
> And of currency :)

Money: The strongest force in the western world. No confusion there :-P

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On 21/07/2010 9:44 PM, clipka wrote:
> Am 17.07.2010 05:02, schrieb Nicolas Alvarez:
>
>>> Isn't it confusing that "pound" is both a unit of mass and of force?
>>
>> And of currency :)
>
> Money: The strongest force in the western world. No confusion there :-P

I thought it was where you put lost and found dogs. ;-)

-- 

Best Regards,
	Stephen

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clipka <ano### [at] anonymousorg> writes:

> Am 17.07.2010 05:02, schrieb Nicolas Alvarez:
>
>>>    Isn't it confusing that "pound" is both a unit of mass and of force?
>>
>> And of currency :)
>
> Money: The strongest force in the western world. No confusion there :-P

Carries a lot of weight, too.

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