PopularFX
Home Help Search Login Register
Welcome,Guest. Please login or register.
2024-04-18, 17:44:33
News: Registration with the OUR forum is by admin approval.

Pages: 1 2 3 4 5 6 7 8 [9] 10 11 12
Author Topic: hhop  (Read 215914 times)
Group: Experimentalist
Hero Member
*****

Posts: 841
That is a fair position Ron, deserves a reasonable answer. Ernie made a similar request recently in another thread so let's have a go..
snip

That's a bit of background to help you decide where on the hhop tree you are.

Thanks for that! Yes, I am lying on the ground looking up,  :o  This is going to take a bit of study

Ron
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
If there is no outlet tube the gas will continue to be created in a fixed volume and therefore pressure will increase until the solid breaks and allows equalisation with the atmospheric pressure (a gas at 15psi, 1 Bar). So information about the inside of the system is allowed to cross the solid boundary plane and the system equalises see..  ;)

Been chasing down leaks all day and in the video a leak developed at around 4 - 5 bar but the rate of fluid loss was not enough to impede the aim of achieving snapvalve triggering pressure at 6 bar.

https://www.youtube.com/watch?v=B5CvlEwxFhg&feature=youtu.be

The valve triggers at 07:17 in the video and a jet of hho can be seen exhausted from the radial port demonstrating impressive stability at a respectable pressure, showing promise for higher load tests later.

The gauge needle falls back to 2 bar showing the pressure loss was entirely due to gas exhaust, and further confirming lack of flame at outlet by not having a zero gauge reading, starting conditions if vacuum was present in cycle.

Encouraging results as 87 psi gives us 200 foot of head with a lot of headroom available in the gas stable pressure.. maybe.. the snapvalve can go up to 200 psi incrementally so I hope ignition can be achieved at a higher pressure.. ?

http://www.convertunits.com/from/psi/to/foot+of+head


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Practical uses for pressure head

https://en.wikipedia.org/wiki/Pressure_head

Fluid flow is measured with a wide variety of instruments. The venturi meter in the diagram below shows two columns of a measurement fluid at different heights. The height of each column of fluid is proportional to the pressure of the fluid. To demonstrate a classical measurement of pressure head, we could hypothetically replace the working fluid with another fluid having different physical properties.

For example, if the original fluid was water and we replaced it with mercury at the same pressure, we would expect to see a rather different value for pressure head. In fact the specific weight of water is 9.8 kN/m3 and the specific weight of mercury is 133 kN/m3.
So, for any particular measurement of pressure head, the height of a column of water will be about 13.6 times taller than a column of mercury would be (133/9.8 = 13.6). So if a water column meter reads "13.6 cm H2O", then an equivalent measurement is "1.00 cm Hg".

This example demonstrates why there is some confusion surrounding pressure head and its relationship to pressure. Scientists frequently use columns of water (or mercury) to measure pressure (manometric pressure measurement), since for a given fluid, pressure head is proportional to pressure. Measuring pressure in units of "mm of mercury" or "inches of water" makes sense for instrumentation, but these raw measurements of head must frequently be converted to more convenient pressure units using the equations above to solve for pressure.

In summary pressure head is a measurement of length, which can be converted to the units of pressure (force per unit area), as long as strict attention is paid to the density of the measurement fluid and the local value of g.

Implications for gravitational anomalies on ψ

We would normally use pressure head calculations in areas in which g is constant. However, if the gravitational field fluctuates, we can prove that pressure head fluctuates with it.

    If we consider what would happen if gravity decreases, we would expect the fluid in the venturi meter shown below to withdraw from the pipe up into the vertical columns. Pressure head is increased.

    In the case of weightlessness, the pressure head approaches infinity. Fluid in the pipe may "leak out" of the top of the vertical columns (assuming p > 0).

    To simulate negative gravity, we could turn the venturi meter shown above upside down. In this case gravity is negative, and we would expect the fluid in the pipe to "pour out" the vertical columns. Pressure head is negative (assuming p > 0).

    If p < 0 and g > 0, we observe that the pressure head is also negative, and the ambient air is sucked into the columns shown in the venturi meter above. This is called a siphon, and is caused by a partial vacuum inside the vertical columns. In many venturis, the column on the left has fluid in it ( ψ > 0), while only the column on the right is a siphon ( ψ < 0).

    If p < 0 and g < 0, we observe that the pressure head is again positive, predicting that the venturi meter shown above would look the same, only upside down. In this situation, gravity causes the working fluid to plug the siphon holes, but the fluid does not leak out because the ambient pressure is greater than the pressure in the pipe.

    The above situations imply that the Bernoulli equation, from which we obtain static pressure head, is extremely versatile.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
This paper is not bad for some light reading  O0

http://www.idc-online.com/technical_references/pdfs/mechanical_engineering/Quantum_Mechanics_Pressure.pdf

"According  to  the  theory  of general  relativity,  pressure  increases  the  strength  of  a gravitational  field  (see stress–energy  tensor)  and  so  adds  to  the  mass-energy cause of gravity. This effect is unnoticeable at everyday pressures but is significant in neutron stars, although it has not been experimentally tested."

Stress–energy tensor

https://en.wikipedia.org/wiki/Stress%E2%80%93energy_tensor

The stress–energy tensor (sometimes stress–energy–momentum tensor or energy–momentum tensor) is a tensor quantity in physics that describes the density and flux of energy and momentum in spacetime, generalizing the stress tensor of Newtonian physics. It is an attribute of matter, radiation, and non-gravitational force fields. The stress–energy tensor is the source of the gravitational field in the Einstein field equations of general relativity, just as mass density is the source of such a field in Newtonian gravity.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Pneumatic Air Cylinders - Force Exerted

http://www.engineeringtoolbox.com/pneumatic-cylinder-force-d_1273.html

Hydraulic Force

http://www.engineeringtoolbox.com/hydraulic-force-calculator-d_1369.html

Pascal's Laws

http://www.engineeringtoolbox.com/pascal-laws-d_1274.html

Pascal's Laws relates to pressures in fluids - in liquid or gaseous state:

    if the weight of a fluid is neglected the pressure throughout an enclosed volume will be the same

    the static pressure in a fluid acts equally in all directions

    the static pressure acts at right angles to any surface in contact with the fluid

The pressure acting on both pistons in a hydraulic jack lift is equal..


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
    if the weight of a fluid is neglected the pressure throughout an enclosed volume will be the same

 O0


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
To define F1 begin with it's shape, a cylinder:

Cylinder (geometry)

https://en.wikipedia.org/wiki/Cylinder_(geometry)

Volume

If the cylinder has a radius r and length (height) h, then its volume is given by

    V = πr2h

The volume is occupied by a Mass which has a Weight and is therefore a Force:

Mass and Weight - the Gravity Force

http://www.engineeringtoolbox.com/mass-weight-d_589.html

Mass and Weight are two often misused and misunderstood terms in mechanics and fluid mechanics.

The fundamental relation between mass and weight is defined by Newton's Second Law. Newton's Second Law can be expressed as

    F = m a 

Mass

Mass is a measure of the amount of material in an object, being directly related to the number and type of atoms present in the object. Mass does not change with a body's position, movement or alteration of its shape, unless material is added or removed.

    an object with mass 1 kg on earth would have the same mass of 1 kg on the moon

Mass is a fundamental property of an object, a numerical measure of its inertia and a fundamental measure of the amount of matter in the object.

Weight


Weight is the gravitational force acting on a body mass. The generic expression of Newton's Second Law (1) can be transformed to express weight as a force by replacing the acceleration - a - with the acceleration of gravity - g - as

    Fg = m ag

Density

http://www.engineeringtoolbox.com/density-specific-weight-gravity-d_290.html

Density is defined as mass per unit volume. Mass is a property.

Density can be expressed as

    ρ = m / V

       = 1 / ν 

Specific Weight


Specific Weight is defined as weight per unit volume. Weight is a force.

Specific Weight (or force per unit volume) can be expressed as

    γ = ρ ag 

and just for fun contemplate swapping the working liquid fluid, which alters the density per unit volume of space, changing the force and therefore the maximum energy that can be extracted from that space.

Liquids - Densities


http://www.engineeringtoolbox.com/liquids-densities-d_743.html

Densities of some common liquids - acetone, beer, oil, water and more  O0


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
You can't squash a liquid!

http://www.explainthatstuff.com/hydraulics.html

Why does water squirt so fast from a syringe? You can't really compress a liquid at all, so if you force the water up through the wide part of the syringe by pushing hard on the plunger at the bottom, where's that water going to go? It has to escape through the top. Since the top is much narrower than the bottom, the water emerges in a high-speed jet. Hydraulics runs this process in reverse to produce lower speed but more force, which is used to power heavy-duty machines. It's exactly the same in a water pistol, which is effectively just a syringe shaped like a gun.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Hydraulics in theory

Turn a water pistol on its end and this is (crudely simplified) what's going on inside:

When you press on the trigger (shown in red), you apply a relatively large force that moves the trigger a short distance. Because the water won't squeeze into a smaller space, it gets forced through the body of the pistol to the narrow nozzle and squirts out with less force but more speed.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Now suppose we could make a water pistol work in reverse. If we could shoot liquid into the nozzle at high speed, the water would flow the opposite way and we'd generate a large upward force on the trigger. If we scaled our water pistol up many times, we could generate a big enough force to lift things. This is exactly how a hydraulic ram or jack works. If you squirt fluid through a narrow tube at one end, you can make a plunger rise slowly, but with a lot of force, at the other end:

The science behind hydraulics is called Pascal's principle. Essentially, because the liquid in the pipe is incompressible, the pressure must stay constant all the way through it, even when you're pushing it hard at one end or the other. Now pressure is defined as the force acting per unit of area. So if we press down with a small force on a small area, at the narrow end of the tube on the left, there must be a large force acting upward on the larger area piston on the right to keep the pressure equal. That's how the force becomes magnified.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Water gun

https://en.wikipedia.org/wiki/Water_gun

Historically, water guns were made of metal and used rubber squeeze bulbs to load and propel water through a nozzle[1]

Hybrid systems

There are also a number of water guns that employ a variety of pressurization systems to propel water.

hhop gen 1 and 2 are examples in this category!


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Nozzle

https://en.wikipedia.org/wiki/Nozzle

A nozzle is a device designed to control the direction or characteristics of a fluid flow (especially to increase velocity) as it exits (or enters) an enclosed chamber or pipe.

A nozzle is often a pipe or tube of varying cross sectional area, and it can be used to direct or modify the flow of a fluid (liquid or gas). Nozzles are frequently used to control the rate of flow, speed, direction, mass, shape, and/or the pressure of the stream that emerges from them. In a nozzle, the velocity of fluid increases at the expense of its pressure energy.

Not Pascals Law then..


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
MERCURY in a SQUIRT GUN?

https://www.youtube.com/watch?v=vWraa6-qicM

We put over 2lbs. of the liquid metal mercury inside a squirt gun. Will it even work? Many viewers have asked me to shoot Hg out of a squirt gun. I wasn't sure if it would work since it takes a LOT of vacuum to even lift it. However, I found a squirt gun where the pump unit was low enough that it would be covered completely by the mercury. It took just a little more effort to squeeze it than water. What's neat is the stream came out in hundreds of individual, tiny droplets. Each droplet was like a heavy little liquid bullet and had a lot of energy.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality

Weight


Weight is the gravitational force acting on a body mass. The generic expression of Newton's Second Law (1) can be transformed to express weight as a force by replacing the acceleration - a - with the acceleration of gravity - g - as

    Fg = m ag

hhop gen 4 applies g to express a, via the leveraged hydraulic press followed by the water pistol, converting a static scalar potential to an accelerating vector mass.. then to electricity! before dropping back into the system as gpe to affect the static system in real time and therefore transform constants into variable gradients mid-cycle.. decades of fun fella's  O0


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
The only thing left to define is P2 and F2.

P2 is easy as it is just the applied pressure of the weight on the piston plus the static pressure of 1.5psi per metre height.

F2 is easy too.. there is not an F2.. what you have instead is an acceleration of the liquid in the narrow outlet tube.

When a fluid is accelerated like this the acceleration comes at the expense of pressure energy. You can see this in the mercury squirt gun video, each distinct droplet forms as the pressure behind it drops to zero and it separates from the flow.

http://www.online-calculators.co.uk/volumetric/cylindervolume.php

http://www.calculatorsoup.com/calculators/geometry-plane/circle.php

So for an upper chamber of dimensions 1 metre diameter and 1 metre height we would have a liquid volume of 3.14 cubic metres. If it's water the density will be 1 and so that equals 3140 litres which equals 3140Kg.

P=F/A

The area of the piston face is 0.785 square meters.

Pressure in the lower chamber is therefore 5.689psi

http://www.sensorsone.com/force-and-area-to-pressure-calculator/

A 1 to 1 ratio therefore provides only a small pressure difference on the large side of the piston. If there is leakage past the piston seals to atmosphere the system pressure will equalise and nothing will happen..

If you now change the ratio of your piston, for example use a 1 inch square piston in the lower chamber and you get 6922.5psi which would probably destroy your water wheel in short order! :)

With a 0.1 square meter piston pressure would be 44.66psi which once you have paid the 1.5psi per meter to raise water in the narrow vertical outlet tube you would still have probably around 40psi to do work on your water wheel, this is well within the realm of micro hydro.

You should now be able to leverage Pascal's principle and produce a pressure gradient across the system that will do work.
« Last Edit: 2016-11-27, 20:22:30 by evolvingape »


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
A simple concept drawing of a small family hhophouse complex.

The hhop electricity generator continuous power output is directly related to it's volume and defines the space required for it's footprint.

A living area is designed to sit on top of the generator room, but below ground level.

Above ground a Hobbit style home sits inside a bio dome that acts as a greenhouse, maintaining a nice warm mediterranean climate perfect for growing food on the roof.

Modern insulation and energy management systems could make a nice and cosy self powered home! 


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
How much electricity does a home use?

https://www.ovoenergy.com/guides/energy-guides/how-much-electricity-does-a-home-use.html

Ever wondered how much electricity a home uses? How your home compares, or what the major uses of electricity are? Then this guide will be handy.

In it, we’ll look at how much electricity the average home uses in the UK, how that compares to different countries around the world, and what the major uses of electricity are in the home. We’ll also talk you through how much electricity different appliances use, as well as what affects those figures.

Household electricity use in the UK dropped under 4,000kWh for the first time in decades in 2014. At an average of 3,940kWh per home, this was about 20% higher than the global average for electrified homes of 3,370kWh.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Biosphere 2

https://en.wikipedia.org/wiki/Biosphere_2

Biosphere 2 is an Earth systems science research facility located in Oracle, Arizona. It has been owned by the University of Arizona since 2011. Its mission is to serve as a center for research, outreach, teaching, and lifelong learning about Earth, its living systems, and its place in the universe. It is a 3.14-acre (1.27-hectare)[1] structure originally built to be an artificial, materially closed ecological system, or vivarium. It remains the largest closed system ever created.[2]

Biosphere 2 was originally meant to demonstrate the viability of closed ecological systems to support and maintain human life, defining mission one as eight humans for two years. Additionally, it served to explore the web of interactions within life systems in a structure with five areas based on biomes, and an agricultural area and human living and working space to study the interactions between humans, farming, and technology with the rest of nature. It also explored the use of closed biospheres in space colonization, and allowed the study and manipulation of a biosphere without harming Earth's. Its five biome areas were a 1,900 square meter rainforest, an 850 square meter ocean with a coral reef, a 450 square meter mangrove wetlands, a 1,300 square meter savannah grassland, a 1,400 square meter fog desert, a 2,500 square meter agricultural system, a human habitat, and a below-ground infrastructure. Heating and cooling water circulated through independent piping systems and passive solar input through the glass space frame panels covering most of the facility, and electrical power was supplied into Biosphere 2 from an onsite natural gas energy center.[3]

Biosphere 2 was only used twice for its original intended purposes as a closed-system experiment: once from 1991 to 1993, and the second time from March to September 1994. Both attempts, though heavily publicized, ran into problems including low amounts of food and oxygen, die-offs of many animal and plant species, squabbling among the resident scientists and management issues.

Space colonization

https://en.wikipedia.org/wiki/Space_colonization

Space colonization (also called space settlement, or extraterrestrial colonization) is permanent human habitation off the planet Earth.

Many arguments have been made for and against space colonization.[1] The two most common in favor of colonization are survival of human civilization and the biosphere in case of a planetary-scale disaster (natural or man-made), and the vast resources in space for expansion of human society. The most common objections to colonization include concerns that the commodification of the cosmos may be likely to enhance the interests of the already powerful, including major economic and military institutions, and to exacerbate pre-existing detrimental processes such as wars, economic inequality, and environmental degradation.[2][3]

No space colonies have been built so far. Currently, the building of a space colony would present a set of huge technological and economic challenges. Space settlements would have to provide for nearly all (or all) the material needs of hundreds or thousands of humans, in an environment out in space that is very hostile to human life. They would involve technologies, such as controlled ecological life support systems, that have yet to be developed in any meaningful way. They would also have to deal with the as-yet unknown issue of how humans would behave and thrive in such places long-term. Because of the present cost of sending anything from the surface of the Earth into orbit (around $2,500 per-pound to orbit, expected to further decrease)[4] a space colony would currently be a massively expensive project.

There are yet no plans for building space colonies by any large-scale organization, either government or private. However, many proposals, speculations, and designs for space settlements have been made through the years, and a considerable number of space colonization advocates and groups are active. Several famous scientists, such as Freeman Dyson, have come out in favor of space settlement.[5]

On the technological front, there is ongoing progress in making access to space cheaper (reusable launch systems could reach $10 per-pound to orbit)[6] and in creating automated manufacturing and construction techniques.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
"I know some of you who will dig that. Oh, the humanity!"

http://www.underground-homes.com/


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
Frame of reference

http://www.thefreedictionary.com/Reference+frame+(physics)

1. A set of coordinate axes in terms of which position or movement may be specified or with reference to which physical laws may be mathematically stated. Also called reference frame.

https://en.wikipedia.org/wiki/Frame_of_reference

In physics, a frame of reference (or reference frame) consists of an abstract coordinate system and the set of physical reference points that uniquely fix (locate and orient) the coordinate system and standardize measurements.

In n dimensions, n+1 reference points are sufficient to fully define a reference frame. Using rectangular (Cartesian) coordinates, a reference frame may be defined with a reference point at the origin and a reference point at one unit distance along each of the n coordinate axes.

In Einsteinian relativity, reference frames are used to specify the relationship between a moving observer and the phenomenon or phenomena under observation. In this context, the phrase often becomes "observational frame of reference" (or "observational reference frame"), which implies that the observer is at rest in the frame, although not necessarily located at its origin. A relativistic reference frame includes (or implies) the coordinate time, which does not correspond across different frames moving relatively to each other. The situation thus differs from Galilean relativity, where all possible coordinate times are essentially equivalent.

Different aspects of "frame of reference"


The need to distinguish between the various meanings of "frame of reference" has led to a variety of terms. For example, sometimes the type of coordinate system is attached as a modifier, as in Cartesian frame of reference. Sometimes the state of motion is emphasized, as in rotating frame of reference. Sometimes the way it transforms to frames considered as related is emphasized as in Galilean frame of reference. Sometimes frames are distinguished by the scale of their observations, as in macroscopic and microscopic frames of reference.[1]

In this article, the term observational frame of reference is used when emphasis is upon the state of motion rather than upon the coordinate choice or the character of the observations or observational apparatus. In this sense, an observational frame of reference allows study of the effect of motion upon an entire family of coordinate systems that could be attached to this frame. On the other hand, a coordinate system may be employed for many purposes where the state of motion is not the primary concern. For example, a coordinate system may be adopted to take advantage of the symmetry of a system. In a still broader perspective, the formulation of many problems in physics employs generalized coordinates, normal modes or eigenvectors, which are only indirectly related to space and time. It seems useful to divorce the various aspects of a reference frame for the discussion below. We therefore take observational frames of reference, coordinate systems, and observational equipment as independent concepts, separated as below:

-  An observational frame (such as an inertial frame or non-inertial frame of reference) is a physical concept related to state of motion.
   
-  A coordinate system is a mathematical concept, amounting to a choice of language used to describe observations.[2] Consequently, an observer in an observational frame of reference can choose to employ any coordinate system (Cartesian, polar, curvilinear, generalized, …) to describe observations made from that frame of reference. A change in the choice of this coordinate system does not change an observer's state of motion, and so does not entail a change in the observer's observational frame of reference. This viewpoint can be found elsewhere as well.[3] Which is not to dispute that some coordinate systems may be a better choice for some observations than are others.

-  Choice of what to measure and with what observational apparatus is a matter separate from the observer's state of motion and choice of coordinate system.



---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
The Solar Sunflower: Harnessing the power of 5,000 suns

https://arstechnica.co.uk/science/2015/08/the-solar-sunflower-harnessing-the-power-of-5000-suns/

The Solar Sunflower uses this exact same cooling technology—but instead of computer chips, those microfluidic slices of silicon are stuck to the backside of those gallium-arsenide photovoltaic cells. The cooling system ensures that the GaAs efficiently converts photons into electrons, while at the same time whisking away the thermal energy of 5,000 suns. It's pretty cool, to be honest. Or hot. Or something.

The end result is a device that produces about 12kW of electricity, along with 21kW of thermal energy (with water temperatures up to 90°C). Neither Airlight or IBM would reveal the exact pricing of a single Sunflower, but the fully installed cost will likely be in the tens-of-thousands-of-pounds range—and that's just the first caveat of many.

For a start, concentrated solar power only works with direct sunlight: the reflectors need to be pointed directly at the sun, and anything less than totally clear skies will significantly reduce power generation. The Sunflower has some control software that automatically tracks the sun, but IBM gave me a distinct "no comment" when I petulantly probed them about their ability to rid the world of clouds.

hhop gen 4 is starting to look pretty good right about now..  O0


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
The Coming Age of Cis-lunar and Deep Space Power

http://www.alpf.org/research/coming-age-cis-lunar-deep-space-power/

Before exploring the idea of deep space reachback, it is important to understand “lagrangian” points (“also lagrange points, L-points (L1-L5), or libration points”[45]). “The lagrangian points…. are the five positions in an orbital configuration where a small object affected only by gravity can theoretically be stationary relative to two larger objects.”[46] “They are essentially points of equal gravity between two celestial bodies.”[47] As an example, L1 is that point which lies on the Sun side of Earth on a straight line between the Sun and Earth. Intuitively, L1 is closer to Earth than the Sun due to their relative masses (see figure 1). However, contrary to one of the definitions presented above, lagrangian points are not at all theoretical.

“Lagrangian points have been of particular interest to astronomers for years. Of particular interest is point L2 which lies on a line similar to L1, only on the shaded side of Earth well beyond the Moon. L2 is both clean [shielded from most radiation] and cool, the ideal position for an advanced telescope. Therefore, this position provides a solution for some of the major problems in space, mainly radiation and heat.”


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
hhop gen 7

Rudolph Diesel and the diesel engine

https://www.youtube.com/watch?v=IjNlUhmJTdw

hhop gen 3 exploits the ability to change the internal density of a body.

hhop gen 4 exploits the ability to switch frame of reference of a mass system to create a gravitational work potential.

hhop gen 5 takes this system and rotates it about a point. Static gravitational reference still applies (minimised in horizontal plane) but can be overcome by acceleration exceeding G=1.

hhop gen 6 asks you to replace the electrolysis model of matter conversion of liquid water to hho gas used in hhop gen 3 with the cryogenic model using thermal energy (boil a cold liquid) to phase transition through the second and third states of matter. (Solid, Liquid, Gas, Plasma)

hhop gen 7 seeks to create a cryogenic perpetual engine system that combines the operating principles of hhop gen's 1 through 6 to extract energy from applied volume space.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   

Group: Moderator
Hero Member
*****

Posts: 2502
Everyman decries immorality
hhop gen 2 uses the combustion event of hho generated by DC electrolysis to accelerate a water slug.

Heat is generated during this process and is treated as waste, establishing environmental energy equilibrium.

Interestingly the straight DC hhop gen 2 can be run in thermal input mode and use a steam pulse to accelerate a water slug instead.

Potentially both can be used together in the same combustion event at high enough voltages to dielectrically breakdown the water vapour doped with hho, in the combustion chamber.

hhop gen 6 is purely devoted to thermal input energy to boil a cold fluid, hhop gen 2 steam variant boils an ambient fluid.

hhop gen 7 sleeves hhop gen 6 around hhop gen 2 in an axial flow design. The waste heat of hhop gen 2 is the primary thermal input energy to drive hhop gen 6.

hhop gens 3 and 4 and 5 couple hhop gen 7 to external frames of reference.


---------------------------
Everyman Standing Order 01: In the Face of Tyranny; Everybody Stands, Nobody Runs.
Everyman Standing Order 02: Everyman is Responsible for Energy and Security.
Everyman Standing Order 03: Everyman knows Timing is Critical in any Movement.
   
Pages: 1 2 3 4 5 6 7 8 [9] 10 11 12
« previous next »


 

Home Help Search Login Register
Theme © PopularFX | Based on PFX Ideas! | Scripts from iScript4u 2024-04-18, 17:44:33