Re: Syphons and density.

Unfortunately, on the salt in jugs with siphon question, I was right,
and I was wrong, horribly wrong.

I gubhtug about it a bit, then did some experiments which did strange
things. I wanted to see what was going on, and, unforgetting that blood
is thicker than water, I sought our cat. Silly me, we have no cat!

With knife poised over wrist, I qrpvqrq that I might not be in a
position to observe the results if I used my own blood, so, thinking
laterally, I resorted to oil.

And the following happened (when I had fiddled a bit), (apologies for
the unsheddi terminology):

Filled each jug[*] 1/4 full with oil and set up the siphon[**] filled
with oil. The ends of the siphon were touching the bottoms of the
jugs[***]. The top loop of the siphon was raised[****] about 4ft[*****]
above the tops of the jugs[***].

1. Poured 1/8 pint of water into one jug[A] and saw that the water began
to go into the siphon and the level of the liquid in that jug[A] rose
_above_ the level of the other one which contained only oil. The water
had risen about 2/3 way up the siphon.

2. Poured more water in the same jug until the water just started to
flow through the siphon and stopped pouring. The liquid in that jug[A]
had been obviously above the liquid in the other, then the water flowed
through until the flow stopped. The water levels in each and the oil
levels looked about the same in each jug, but the oil level in the 'oil
only' jug[B] seemed slightly higher.

3. Poured some oil into the 'oil only' jug[B]. Some water flowed
through the siphon then stopped. The level in the 'oil only' jug[B]
definitely rose above the level in the other one.

4. Poured more oil into jug[B] until oil started to flow through the
siphon. Jug[A] had most of the water and the level was lower than
Jug[B].

5. Slowly raised the arm of the siphon in jug[A]. Oil started to
bubble through the siphon.

6. Continued until the arm was clear of the water but still under the
oil and fixed it in position. The levels in the 2 glasses was now the
same.

Conclusion:

The level can be higher in the light side or the dense side depending on
which side you are adding liquid. This depends on how imbalanced the
different density liquids are in the arms of the siphon and also the
glasses. It also depends on where in the glass the bottoms of the
siphon arms are

Suggestion for further experiment:

1. Use miscible liquids in each side. A good combination would be vodka
(less dense than water) and orange juice (denser than water).

2. Put[#] the oil/water into a chip fryer, turn on, observe what happens
and record your feelings.

3. Drink vodka/orange and record your feelings.

4. Describe how your feelings have changed[##].

[*] Actually pint beer mugs.
[**] Molished from plastic tube from the beer-making box.
[***] remember they are beer mugs.
[****] using string tied over the window catch
[*****] about 6 millifurlongs
[A] the right hand beer mug.
[B] the left hand beer mug with a Fuller's London Pride label
[#] ensure your insurance is up to date first.
[##] Some people feel that drinking the oil/water mixture is a good idea
at this point.
--
)>==ss$$%PARR(º> Parr
"Guy King" <guy.king@xxxxxxxxxxxx> wrote in message
news:313030303432373943D6074D72@xxxxxxxxxxxxxxx
| The message <dr4v0h$obe$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
| from ">parr\(*>" <laurykingno@xxxxxxxxxxxxxxxxxx> contains these
words:
|
| > It's all an application of the general principle of salt and water
as
| > seen all over our marvellous planet. The densest sea is the dead
sea
| > and that is several furlongs below normal salty-sea level, wherereas
| > fresh-water lakes are above sea level.
|
| Splendid!
|
| --
| Skipweasel
| Si hoc legere scis nimium eruditionis habes.


.

Relevant Pages

  • Re: solvent for garlic
    ... soluble in water or oil. ... If you are trying to get more garlic flavor into a liquid, ...
    (alt.food.barbecue)
  • Re: Siphons
    ... >> down the siphon tube,air pressure makes the rest of the water follow it. ... The purpose of a siphon is to lift liquid over a barrier ... differential air pressure between lower and higher points in the atmosphere ...
    (sci.physics)
  • Re: What is in my hydrolic fluid?
    ... Yes, does the liquid float on the oil, or vice versa? ... Water is more dense than oil. ... by passing over the relief valve. ...
    (sci.chem)
  • Re: Siphons
    ... > Hi Mark T Many toilet tanks work with a "siphon" Operating the toilet ... > tank starts the siphon flowing. ... > down the siphon tube,air pressure makes the rest of the water follow it. ... Either a) the liquid in the tube would have to ...
    (sci.physics)
  • Variable optics liquid lenses
    ... controlled optical liquid lens. ... "The lens has a simple structure: ... water, which is conductive. ... The other, oil, acts as a lid, allowing the ...
    (sci.astro.amateur)
Loading