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[PSUBS-MAILIST] Bubble question Psubs disscussion
Herve - I think without the container in the free sea the bubble moves
against the earth graphity because of the pressure differential between
the bottom of the bubble and the top of the bubble.
The waterpressure at the bottom is higher and press the bubble in
direction sky.
In a closed containers filled with water and the conatiner moving with
bubble speed the pressure differential bettwen the bottom of the bubble
and the top is still the same distance - so the bubble moves inside the
container with bubble speed - or for a viewer outside the container
with
bubble speed + container speed or in other words
and with container speed = bubble speed = >
two times bubbles speed..
So we have still the waterflow of one times bubble speed.. and it
will maybe looks like all the other bubbles I make during scuba diving..
right ? Carsten
Herve schrieb:
>
> Actually , i have a question for those interested in physics under the water
> and mind games.
> he he lets see who guess it right here, Jeffrey you are welcome........
> what would be the shape of an air bubble in the water without the
> hydrodynamic effect (which deforms the bubble because of water flow)
> imagine an air bubble trapped in a container of water, itself going to the
> surface at the speed ascent of an air bubble. so the only forces exerted on
> the bubble are the water pressure. water around the bubble is moving with
> the bubble, so there is no flow around the bubble, the container takes the
> hydrodynamic forces.
> Herve
>
> ----- Original Message -----
> From: "Carsten Standfuss" <MerlinSub@t-online.de>
> To: <personal_submersibles@psubs.org>
> Sent: Tuesday, January 28, 2003 1:42 PM
> Subject: Re: [PSUBS-MAILIST] Re: Welcome to the Personal_Submersibles_Disc
> ussion
>
> > A second idear for a long range space ship is also simple..
> >
> > Put a heavy weight special-atomblow-from-together-generator in the ships
> > centerpoint on a hydrauilc slider (should be a ball design ship..) than
> > blow the ship with that generator so that each atom of the ships moves
> > away from the others atoms of the ship and do not stop until the ship
> > has a "size" greater than the universe - maybe 1 atom each some
> > lightyears.. Than move the center of mass of the ship with a hydraulik
> > cylinder to one side of the ship and stop the generator - the ship goes
> > back to his normal size - just at an other point of the universe.
> > Navigation of this ship should be very easy.
> > But this process should be very quick because it is maybe hard to
> > respiration your lungs if the oxygen atoms so far away inside your
> > lungs..
> >
> > Life can be very easy.. Carsten
> >
> > Warrend Greenway schrieb:
> > >
> > > Sure, Carsten, I'll take the bait. I know a good couple things
> > > about rocketry, various forms of propulsion, and spaceflight...
> > > Or were you being sarcastic??? :) Hey! When will you be dropping
> > > by the USA in your Euronaut? I'll buy you a beer!
> > >
> > > Warren.
> > >
> > > > Hi welcome here.. have you a drawing ?
> > > >
> > > > It is not serious to offer an idear and
> > > > than not to explain how its works.
> > > >
> > > > And guys - not laughted but I have a nice idear for a spaceship
> > > > which can run very easy short under lightspeed and with a power
> > > > consuption to boost the ship to this speed which is very low
> > > > and easy to handle. Ask is you want to know how it works.. :-)
> > > >
> > > > regards Carsten
> > > >
> > > >
> > > > BauWauHausDesign@aol.com schrieb:
> > > > >
> > > > > hello all,
> > > > >
> > > > > i am a designer and enthusiast. i grew up with my father re-building
> > > > > airplanes in our patio and have dreamed of underwater exploration.
> > > > >
> > > > > my question is this. i have come up with a design which eliminates
> the
> > > > > essential problem of water pressure and implosion. a simple
> fiberglass
> > > > > hull of 3/4" fiberglass is all to safely dive to a thousand feet or
> > > > > more. it also means weight is a fraction of current designs and
> speeds
> > > > > of around 30 knots. my question is where do i go now? i am more
> > > > > designer than engineer, good with form, but not tolerances. i also
> > > > > know my work will lead to patents because my design takes a
> completely
> > > > > different approach to conventional design theory, so this is also a
> > > > > concern.
> > > > >
> > > > > so anyone got any ideas?
> > > > >
> > > > > thanks alot,
> > > > >
> > > > > jeffrey
> > > >
> > >
> > > --
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