One rail is designed to be one continuous straight line. This is insured by the initial section being leveled with a spirit level,
What is used to calibrate the spirit level?
kd-755 said:
So by that statement of fact if there is no container to push against the air simply keeps on going then?
Well what would happen to the air without the container?
kd-755 said:
What is doing the pushing upwards/outwards to the container?
Particles, matter, substance... call it what you will.
Does that mean that you like me have no idea what is actually doing the pushing?
No evidence of it?
kd-755 said:
If air pressure is created by a force (currently unknown) pushing air against a container then at some distance from the container itself there must be some sort of pushback or equilibrium surely.
I was once an apprentice on a marine plumbing test squad. The job was to fill pipelines with either air or water then pressurise them to find any leaks. Two gauges were put on the system. One right at the point were the pump that did the pressurising was located and the other ar the furthest possible point from the former. Once the pressure was built up to two and a half times operating pressure the inlet valve was closed and the pump end gauge was monitored for any pressure drop which would indicate a leak.
If it didn't drop the pipeline was walked and eyeballed as much as could be done, it was on an aircraft carrier so often the pipeline disappeared from view, until we got to the other gauge. There was always a slight maybe two o four psi difference in the two gauges readings.
This could of course mean the gauges were not calibrated equally although being a naval shipyard there was an entire calibration laboratory which was staffed by people who were very good at doing what they did.
I never could figure out why this differential existed but being young it left my mind the instant I left the test squad.
Point is pressure is not created by the container but by the source of the push.
In example above the source of the pressure in the pipeline system is an pump be it an air pump or an air-hydro pump. The pressure across the container (the pipeline) is not the same ergo which suggests to me there is something is going on at the extremity of the container that is not covered in conventional thinking.
kd-755 said:
The pressure of liquid water on the bottom of the ocean is much more than the pressure on the air above the liquid water and yet the air bubble released from the bottom of the ocean somehow, by means unknown, is able to overcome the water pressure and rise up above the level surface of the water and in your statement of fact join the air above and continue until it hits a container wall.
These things are not unknown. Air is less dense than water, so it will rise. Water, like raindrops, will fall through air because they are more dense than the air.
The air bubble stops rising at the point where it reaches equilibrium with its environment.
The density explanation does seem to 'hold water' so to speak however the air is in reality water in vapour form or gaseous form as it is termed by science. It only changes to liquid water when it has something to condense on. Steam from a kettle will form droplets when it hits a cold surface otherwise it just vanishes from sight into the surrounding water vapour.
There is no difference in the density of the water vapour that hits the window or goes into the air yet it is clearly behaves differently.
Air in a trompe and waterfalls is carried downwards within the liquid water in bubble form. In the case of the trompe the air/water mixture then travels horizontally where the air leaves the water and rides along the top of the horizontal pipe (just as the compressed air rode on the top of the compressed air lines in the shipyard when they filled with water, which was fairly frequently as a machine compressing air makes wet air a trompe makes dry air) and is collected in a chamber. The water also rises so far up into the chamber and this height is determined by the placement of the outlet in relation to the inlet. It is the water that provides the pressure to the air.
The air is dry because the water does not create heat in this process whereas all machine compressors are heat producers.
I think the terms density and pressure are used with gay abandon by the scientific world to give credence to things they presume and assume.
An air bubble at the bottom of the ocean has never been checked for its actual pressure. It may well be at atmospheric pressure as it is termed which would lend credence to the rise through 'density' to 'equilibrium' but equally it might be at a greater pressure than the surrounding liquid water. Though how such a bubble at atmospheric pressure was able to exist under the immense pressure of the surrounding liquid water I know not.
An air bubble in water is either being pushed out of the water by something possibly the liquid water or the pressure of the liquid water where it meets the water vapour/air bubble is reduced by something I no not and it is this behaviour that allows the bubble to move upwards through the liquid.
Water at +4 degrees centigrade can transport sodden log within it as Viktor Schauberger discovered through building log flumes which maintained a centripetal spiralling inner core of +4 degrees water within them. As the water warms it moves to the side of the flume and is vented and replaced by incoming stream water at the correct temperature.
I'm sure though have never tested it temperature of the air has as big a part to play in an air bubbles movement through water as anything else. Quite why water vapour is able to exist as a bubble inside liquid water and liquid water is able to exist inside water vapour is a mystery to behold. As mysterious as ice holding liquid and vapour within itself. Only changing the state of the liquid not the vapour!
kd-755 said:
Quite how the air can somehow travel in the opposite direction and find itself under a colossal pressure of the liquid water is a mystery to behold.
No air bubbles are ever moving through water in a downwards direction. They only rise. As the story goes, Archimedes figured this all out a couple 1000 years ago. Regardless, this is still true today.
See the above and research trompes.
Edit to add missing words.