Also the Eiffel Towers in the classic Alec Guinness film The Lavender 
Hill Mob http://en.wikipedia.org/wiki/The_Lavender_Hill_Mob

I was under the impression that weight is always used for chemical 
proportionality, in this case the molecular weight of the intermetallic 
compound.

Brian

On 27.03.2014 17:57, Mike Fenner wrote:
> Guy
>
> Weight
>
> Gold is much heavier than most people realise, as can be seen in the movies.
> Most obviously to me the original The Italian Job film. The film ends with a
> coach hanging half off a mountain cliff with a load of gold booty on
> pallets at one end being balanced by the people in the coach at the other.
> It can't be reached without the coach tipping off the cliff.
> A genuine cliff hanger in fact....except the amount of gold as seen in the
> coach would have been much heavier than the coach and would probably have
> bent it in half anyway. Great film though.
>
> For British readers: You're only supposed to blow the b*****y doors off.
> :)
>
> Regards
>
> Mike
>
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Guy Ramsey
> Sent: Thursday, March 27, 2014 3:07 PM
> To: [log in to unmask]
> Subject: [TN] Calculate percent gold, by weight or volume?
>
> When determining the percent gold in a solder connection, should one
> calculate using volume or weight?
>
> I always did this by calculating the volume of the solder and the volume of
> the gold by thickness. Thinking that solder and gold were similar in
> density. eeaAhh, yeah, NO.  11 oz/cuin. Versus 5 oz.
>
> So, there is a big difference between calculating by weight and calculating
> by volume. Which way is right?
>
> Guy
>
>
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