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Old 21-03-2010, 13:58   #46
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Just to clarify the distance to horizon equation. The distance to horizon is the sum of (the square root of the height of "you" times 1.17) plus (the square root of the height of the object you see or the shore times 1.17)

Previous post suggest the you only calculate your height. You must also utilize the height of the object you are seeing.

Ken
Negative. This would be for the distance to an object that is beyond the horizon but tall enough so that it sticks out.

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Old 21-03-2010, 15:16   #47
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To find South using just an analog wristwatch ( or clock) point the hour hand at the sun. Pick the shortest distance on your wristwatch between the hour hand and noon (12) on the wristwatch. Half of that distance between the hour hand pointing at the sun and the 12 is South. In the northern hemisphere, anyhow.
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Old 21-03-2010, 16:15   #48
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Jedi,
Sounds like you are doing well with your array. I wish I had room for more.
Fair Winds
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s\v Kismet
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Old 21-03-2010, 16:59   #49
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Rule of Thumb: The smartest poster on an internet forum is either wrong or completely misses the point about half the time.
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Old 22-03-2010, 13:09   #50
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Wind direction rule of thumb:

The wind will blow from whatever direction we intend to go, or not at all (especially true on the Chesapeake)
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Old 22-03-2010, 22:26   #51
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Okay, here's one from a great Dutch scientist:

Face the wind and stretch your right arm out horizontally and back as far as possible without moving your shoulders. Your are now pointing at the low pressure area that is causing the wind. That is, when you're north of the equator. It's the exact opposite direction in the southern hemisphere.

The name of the scientist is Christophorus Henricus Diedericus Buys Ballot
and this is generally called Buys Ballot's law but they explain it in a backwards kind of way on that Wikipedia page (still correct though).

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Old 10-06-2010, 08:34   #52
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Another rule is any project will cost twice as much as you plan, and take 3 times as long. I've tried to disprove this theory several times, but it's a stubborn rule that always wins.

Jeff
My wife no longer asks me how long something will take, she asks what needs to be done. This does two things. The first is that she can then do her own estimate. The second, and most important, it allows me to find many of the missing steps that would have caused my estimate to have been grossly inaccurate.

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Old 10-06-2010, 08:41   #53
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... Face the wind and stretch your right arm out horizontally and back as far as possible without moving your shoulders. Your are now pointing at the low pressure area ...
And conversely:
Locating Low Pressure Systems - Weather Cruisers & Sailing Photo Gallery
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Old 10-06-2010, 08:44   #54
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Cyclone Evasion

Here ➥ Cyclone Evasion - Cyclone Evasion in the Southern Hemisphere Cruisers & Sailing Photo Gallery
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Old 10-06-2010, 10:45   #55
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If she's more than ten days late, you're going to be a dad.
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Old 29-06-2010, 14:59   #56
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Give a man a fire and you will warm him for a day. Light a man on fire and you will warm him for the rest of his life.
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Old 14-07-2010, 12:48   #57
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Give a man a fire and you will warm him for a day. Light a man on fire and you will warm him for the rest of his life.
?

I am dumb. English can be very idiosyncratic.

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Old 14-07-2010, 12:52   #58
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?

I am dumb. English can be very idiosyncratic.

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The rest of his life ... as in he's not going to live much longer after you set him on fire. lol
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Old 14-07-2010, 13:05   #59
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OK, so it is not the language that is idio-whatever, it is the sense of humour ...

barnie
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