On Wed, 08 Jul 2009 20:28:18 -0500, Vic Smith
wrote:

On Wed, 08 Jul 2009 09:22:39 -0400, Wayne.B
wrote:

On Wed, 08 Jul 2009 08:33:05 -0400, wrote:

Diesel/Electric has been used on trains for a very long time. There
must be some advantages. I guess one would be full power available at
low speeds, and another would be the elimination of need for a
transmission.

Correct on both points, those are the only real advantages, much more
applicable to trains than boats.

Ahem. Perhaps neither of you are aware of the progress being made in
seawater batteries.
Seawater is usually not available to power trains, but vessels at sea
are a different matter.
This link may discuss "state of the art" or there might be more recent
news on this exciting front in the battle for free locomotion.

http://blog.modernmechanix.com/2009/...-on-sea-water/

--Vic

The marvels of electrolyses. You can do the same thing with a lemon, a
galvanized screw and a piece of copper wire.

Cheers,

Bruce
(bruceinbangkokatgmaildotcom)

On Thu, 09 Jul 2009 20:14:54 +0700, Bruce In Bangkok
wrote:

The marvels of electrolyses. You can do the same thing with a lemon, a
galvanized screw and a piece of copper wire.

Yes, it is easy to make a battery out of a lemon. It's not a very
good battery however. That's because it was designed to be a lemon,
not a battery, same problem with a sea water battery. It's
interesting to see guys working on things like that, and every once in
a while something useful comes out of it.

On Thu, 09 Jul 2009 09:48:37 -0400, Wayne.B
wrote:

On Thu, 09 Jul 2009 20:14:54 +0700, Bruce In Bangkok
wrote:

The marvels of electrolyses. You can do the same thing with a lemon, a
galvanized screw and a piece of copper wire.

Yes, it is easy to make a battery out of a lemon. It's not a very
good battery however. That's because it was designed to be a lemon,
not a battery, same problem with a sea water battery. It's
interesting to see guys working on things like that, and every once in
a while something useful comes out of it.

You did notice that his experiments were all with little model boats.
when he get something 15 feet long that does 15 miles an hour it will
be far more worthy of notice.


Cheers,

Bruce
(bruceinbangkokatgmaildotcom)