All that they have to do is to change the gearing such that it has a 12
hr 25 min period rather than 12 hours.

-- Geoff

Jeff wrote in
:

Of course it is. Why is this such a hard thing to believe?

Shaun Van Poecke wrote:
you think the clock really is a special clock that works on the lunar
cycle?

Shaun

"Rick" wrote in message
...
"Shaun Van Poecke" wrote in message
...
I saw a tide clock on ebay today, had a single hand with a 'high'
at the top, a 'low' at the bottom and that was pretty much it. All
this for the bargan price of AU$70.

It occured to me that all it was, is a standard analogue clock with
the second and minute hand removed. open tha face and glue on a
bit of paper, right high at 12 and low at 6 and you have your very
own homebuilt version. set it to high or low when you know the tide
is there and you'll always have the tide at a glance. a lot
cheaper than the rip curl tide master watch i bought a few years
ago and lost somewhere in asia

Shaun

tides are based on a lunar cycle; not on the solar cycle.