On Thu, Mar 21, 2019 at 08:45:27PM +1300, RussellMc wrote:
> [...]
> http://www.inference.org.uk/sustainable/book/tex/sewtha.pdf

A side issue.

On the 63rd page, marked page 50, it is said that "In countries where
the voltage is 110 volts, it takes twice as long to make a pot of
tea."

In UK, it is said that a 230V outlet permits up to 13A.  So the
limit is 2.990kW.

In Australia, a 240V outlet permits up to 10A.  So the limit is 2.4kW.

What does the US have as a conventional pluggable cable limit?
Wikipedia suggests 115V and 15A, or 1.725 kW for NEMA 1-15 or 5-15.

So that is 58% of the UK tea power delivery.

Or 1.73 times as long?

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James Cameron
http://quozl.netrek.org/
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