Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> Oh, that's sad.
> I really do not like that "powder" idea and printing conductive ink
> is too expensive....
> 
> I thought i have found someone who will try the epson for me....
> seems i must do this myself.
> 
> > conductive ink from Precisa, which is $52 for 0.1 Kg (smallest 
order).
> 
> 1kg = 1l water, isn't that fun?
> i expect the ink to be maybe 2 to 4 times as heavy as water, so
> you maybe get 30ml. definitely more than 10ml.
> 
> ST


OK, so 1 kg  = 1 litre, so 0.1 kg = 0.1 litre

0.1 litre = 3.38 ounces, but that is a fluid measurement.
if it were dry weight, then 1kg = 3.5274 ounces

I thought 1 kg was equal to about 2.2 pounds ?
having a litre be both a liquids and dry unit is tough.  Probably why 
us Americans have such a hard time with SI units.  Having a litre be 
two different types of measures, dry volume and liquid but having the 
same name for each makes it hard to know what we are doing.

I mean how many ounces would it be and is that dry ounces or liquid 
ounces ?

I think one reason the transistion is because of the few things that 
cross between volumes and weights.

Regardless, if the main ingredient is silver, then the cost will be 
PDH.  

and personally, I feel sorry for the bloke who has to convert the 
troy weight of silver to ounces to litres to kg !  No wonder the cost 
is so high !

Dave

(not sure if it is liter or litre ? )