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Scuba Forum / General / January 2008

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Sheldon - 11 Jan 2008 04:06 GMT
I was just surfing around the Net and found this.  What actually happens
when you drink seawater?  Hey, we need water.  We need salt.  What's the
problem?

http://www.straightdope.com/mailbag/msaltwater.html
Matthias Voss - 11 Jan 2008 10:16 GMT
> I was just surfing around the Net and found this.  What actually happens
> when you drink seawater?  Hey, we need water.  We need salt.  What's the
> problem?
>
> http://www.straightdope.com/mailbag/msaltwater.html 

C.A. is right.

However, in reports of sailors lost at sea, there are
reports stressing the notion that a minute consommation of
seawater might help prolong the timespan of survival.

I myself drink sometimes a gulp of Baltic water, which is
1,3-1,5% salty, and after a week to ten days at the Red Sea,
I even drank  mouthful there, without harm. Sometimes it is
even a common idea just to wet your throat a bit.

However, since some time, in distant areas I carry a bag
fresh water with me, about 2-4 l, so   this might last for a
20 miles swim, if needed.
Or a 5 mile swim, and some walk in the desert.

Matthias
Sheldon - 11 Jan 2008 23:36 GMT
> However, in reports of sailors lost at sea, there are
> reports stressing the notion that a minute consommation of seawater might
> help prolong the timespan of survival.

If you keep looking around the Net you will find stories of sailors who
survived on seawater, but nobody can back any of these up.  According to
scientists you are better off not eating or drinking anything if you have no
fresh water.  I call it the Raft At Sea weight loss program.
Douglas W. "Popeye" Frederick - 12 Jan 2008 01:30 GMT
>> However, in reports of sailors lost at sea, there are
>> reports stressing the notion that a minute consommation of seawater might
[quoted text clipped - 4 lines]
> scientists you are better off not eating or drinking anything if you have
> no fresh water.  I call it the Raft At Sea weight loss program.

 Get the book "In The Heart Of The Sea".

 A -true- story, it's one of the top 5 books I've read, of thousands.

 -Everything- you ever wanted to know about "raft at sea".

 Or not.

 It'll probably answer your question for you, factually or otherwise...

 :-)

Signature

Does anybody here really think that taking away the guns will stop
killing? Or knives, or icepicks, or chains, or ropes, or baseball
bats, or poisons, or cars & trucks. People are gonna kill people,
and they'll always think of a new weapon if you take away the old ones.
And just because I carry a potential weapon doesn't mean I intend to
commit murder, or that I may be tempted to commit murder.
I often carry a big ugly knife. Lots of my friends do too.
I have never heard of anyone being tempted to use the knife on
anyone just because they have it with them. You gotta be in the
mood to do the killing and you use what's at hand. -Jeff Cooper

           Popeye/ www.finalprotectivefire.com
       http://picasaweb.google.com/Popeye8762

Carl Nisarel - 12 Jan 2008 04:56 GMT
Stealing time from his job at Robinson Enterprises LTD, Douglas W.
"Fatboy" Frederick, sputtered:

>   A -true- story, it's one of the top 5 books I've read,

and you've only read 5 books. Starting with Hop on Pop and ending
with Sam I Am.

Signature

Posted via a free Usenet account from http://www.teranews.com

Matthias Voss - 12 Jan 2008 13:46 GMT
>>However, in reports of sailors lost at sea, there are
>>reports stressing the notion that a minute consommation of seawater might
[quoted text clipped - 4 lines]
> scientists you are better off not eating or drinking anything if you have no
> fresh water.  I call it the Raft At Sea weight loss program.

I've got a book where it is all laid down.

Navy Survival report, or something.

Matthias
Matthias Voss - 12 Jan 2008 13:48 GMT
>>However, in reports of sailors lost at sea, there are
>>reports stressing the notion that a minute consommation of seawater might
[quoted text clipped - 4 lines]
> scientists you are better off not eating or drinking anything if you have no
> fresh water.

I don't think so.
people lost at sea did not think so.

The fish you catch under your boat holds water.

Matthias
Sheldon - 13 Jan 2008 20:09 GMT
>>>However, in reports of sailors lost at sea, there are
>>>reports stressing the notion that a minute consommation of seawater might
[quoted text clipped - 11 lines]
>
> Matthias

Apparently the fish also contains salt which will make you more thirsty.
Matthias Voss - 13 Jan 2008 21:53 GMT
>>>>However, in reports of sailors lost at sea, there are
>>>>reports stressing the notion that a minute consommation of seawater might
[quoted text clipped - 13 lines]
>
> Apparently the fish also contains salt which will make you more thirsty.

No. This is neither apparent nor true.
At least not your sublimal suggestion that blood contains a
higher level of salt than what is needed for survival, for
either the owner the blood or contestants for said ownership.

Matthias
john - 11 Jan 2008 16:53 GMT
> I was just surfing around the Net and found this.  What actually happens
> when you drink seawater?  Hey, we need water.  We need salt.  What's the
> problem?
>
> http://www.straightdope.com/mailbag/msaltwater.html 

Easiest was of looking at it from a diving point of view is think of it
from a gas point of view -

If you have a tank of Air and connect it to a tank of Nitrox 40%, what
do you get? A mix of the two (prob around Nitox 29%).
In other words the molecules like to mix themselves up until perfectly
balanced.

Feom a seawater point of view, when you drink salty water, the water in
your body tries to mix into it to create an average throughout your body
- leaving cells with less water than they need to operate and therefore
you dehydrated.
 
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