w5grg wrote:
>Well-lots of good comments, but I stopped with the beer long ago, so I
>don't know what size it comes in, but it has been a handy saying for me
>since a pint of water (fresh at some temp -forgot how many degrees maybe
>72 F) is equal to 1 lbs, so both the liquid and weight have a common unit.
From a joint US-British household:
The density of water is about 8.3 pounds per US liquid gallon (or about
8-11/32, if you must) so it doesn't really come close "a pint is a
pound". On the other hand, a pound really is "a pound, the world
around".
The original British gallon of water was defined to weigh exactly 10
pounds at room temperature, and a pint was 1-1/4 pounds. The real puzzle
is why the US emigrants kept the pound but "devalued" the gallon and the
pint?
> I was kidding about the antenna,but since the metric system is not in
>common use in most homes in the US and I imagine most hams buying the
>handbook live in the USA, I am not sure why the ARRL uses the metric
>system, seems more like an affectation rather than to make things clear.
On the contrary, it was a very deliberate decision by K1FO, who did the
original design work for those 144, 220 and 432MHz yagis. The nearest
whole millimetre is just about the right precision to aim for on those
bands, so fractions are totally eliminated. All you need to know is how
to count.
>I don't think that anyone commented on the most remarkable fact that the
>English system (which I think comes down from the measurement of the
>human forearm or "cubit" - not sure of that) is both Base 2 and Base 3
>, that is divisible both even and odd.
You soon got rid of that handy feature in your money, though :-)
--
73 from Ian G/GM3SEK
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