12-03-2017, 02:35 PM | #21 |
Join Date: Dec 2007
|
Re: Sailing ships at TL3
Yes but I was talking about the idea of towing a barge. Of course it only converts a fraction of the wind.
|
12-03-2017, 03:22 PM | #22 | |
Join Date: Jun 2005
Location: Lawrence, KS
|
Re: Sailing ships at TL3
Quote:
If you cast the spell, you're taking energy off from the first device so that it doesn't reach the second. The shaft of the windmill or steam engine doesn't turn with as much force, as if it were experiencing friction; or the photovoltaic cell doesn't provide as much current, as if some of the current were flowing in a different circuit, or as if the resistance internal to the cell were higher and there was a voltage drop. In effect, you've added impedance to the system. I suppose you could imagine the sails as a power source. But I don't think the body of the vessel quite works as a device that uses the power to do work. The work you are having done is the work of moving the vessel itself, and that work is done by the sails and masts. The body of the vessel isn't really a "device," any more than a rock that you throw is a "device," even if you take your arm as a power source. The vessel isn't a thing that does work; it is a thing on which work is done. So the paradigm doesn't quite seem to apply, except perhaps in a really artificial and abstract way. It really seems like a more modern, "industrial" way of looking at the matter.
__________________
Bill Stoddard I don't think we're in Oz any more. |
|
12-03-2017, 03:25 PM | #23 | |
Join Date: Jun 2005
Location: Lawrence, KS
|
Re: Sailing ships at TL3
Quote:
__________________
Bill Stoddard I don't think we're in Oz any more. |
|
12-03-2017, 05:57 PM | #24 |
Icelandic - Approach With Caution
Join Date: Jan 2005
Location: Reykjavķk, Iceland
|
Re: Sailing ships at TL3
"You can in fact effectively move due north, with the wind blowing due south." Nowhere does it say that the ship is sailing straight upwind.
|
12-03-2017, 11:27 PM | #25 |
Join Date: Jun 2005
Location: Lawrence, KS
|
Re: Sailing ships at TL3
Due north is diametrically opposite to due south. If due south is downwind, due north is upwind.
__________________
Bill Stoddard I don't think we're in Oz any more. |
12-04-2017, 04:06 AM | #26 |
Dog of Lysdexics
Join Date: Oct 2004
Location: Melbourne FL, Formerly Wellington NZ
|
Re: Sailing ships at TL3
hence the word "effectively" meaning in context while not directly moving in that direction that is your over all movement direction.
|
12-04-2017, 04:32 AM | #27 | ||
Join Date: Jan 2010
Location: Brighton
|
Re: Sailing ships at TL3
Quote:
Quote:
EDIT: actually you mention this yourself in post #17, so going by that post your objection seem to be that you don't travel in the net direction very fast and you do so by a series of course changes none of which are directly into the wind (for very long)? *some can't do this at all, some do it better than others, and ultimately sometime's its easier or more efficient to just go faster a different way and hope for a change in wind direction, or arrive at your destination from a different angle (not applicable in races of course) Last edited by Tomsdad; 12-04-2017 at 08:49 AM. |
||
12-04-2017, 06:05 AM | #28 |
Join Date: Jul 2006
|
Re: Sailing ships at TL3
<digs out the can opener> Are these yachts really TL8 or are they TL5 devices made with TL8 materials? I remember that being a thing in High-Tech.
|
12-04-2017, 06:11 AM | #29 |
Dog of Lysdexics
Join Date: Oct 2004
Location: Melbourne FL, Formerly Wellington NZ
|
Re: Sailing ships at TL3
given one of them had sail that was more like an vertical airplane wing than then a canvas sheet yeah it more that just material sciences.
|
12-04-2017, 06:24 AM | #30 | ||
Join Date: Jan 2010
Location: Brighton
|
Re: Sailing ships at TL3
Quote:
Quote:
I've done it on a Toledo 30 that is in terms of what you might see in your local marina a TL7 "racing boat" i.e. "handles like a witch"**, but is bloody uncomfortable. But is certainly not at the cutting edge, and still looks and works pretty much like an older boat. EDIT: also when you say "like an vertical airplane wing", do you mean rigid and curved? *which doesn't just mean doing it closest to the wind, but also being able to do it in less favorable conditions for doing it at all. **according to my wife who gets all nautical about stuff, that's a thing! Last edited by Tomsdad; 12-04-2017 at 08:05 AM. |
||
Thread Tools | |
Display Modes | |
|
|