«In 1915, Karl Schwarzschild was the first person to find a solution of
the field equations of Einstein — at the time just a theoretical construct for what we call a black hole today.
Some of the strange mathematical properties of black holes, coming from Karl Schwarzschild's first solution of the Einstein
field equations of general relativity in 1915, still puzzle the scientists.
But then right at the very end of a really long journey you learn something like the Schwarzschild solution to
the field equations of general relativity, which hinted at the existence of black holes, and suddenly you remember why you began the journey.
«In order to arrive at this consistent view,» Einstein wrote in 1917, «we admittedly had to introduce an extension of
the field equations of gravitation which is not justified by our actual knowledge of gravitation.»
And this strange assumption, Gödel demonstrated, satisfies
the field equation of general relativity exactly.
Not exact matches
We must look for differential
equations to determine the laws
of the
field (as Einstein said) because only differential
equations describe the infinitesimal, contiguous connections
of events.
Lorentz's explanation
of this situation was along these lines: he showed, using Maxwell's
equations (assuming that Maxwell's
equations hold in the frame
of the ether), that if the
field of force is spherical in the rest frame
of the ether then it contracts along the direction
of motion: l = l0.
Gravity from space (Einstein's relativity) operates on mass through space and matter interaction is a natural process like centrifugal force which made its appearance when a body is morning in circle Jean mass is the amount
of matter that must be present before gravity becomes effective or felt, once this minimum amount
of matter is reached or exceeded, gravity with mass interact with space - time to bring geodesics and gravity begin to control other bodies and then orbit around each other, another aspect
of the twin effect
of gravity and mass is the necessity to account for energy required to sustain gravitating mass and where does this energy originating from Einstein's
field equation says from space but never refer to the origin
of gravitation.
He was interested primarily in simplicity and coherence — in particular, the symmetry
of the forms
of the
equations for electrical and magnetic
fields in motion.38 The variability
of individual weighting among various criteria, which Kuhn describes, is also most noticeable in the early stages
of a new theory.
Although i believe in the Quantum Mechanics i currently study both Theories: The M theory, recently scoring as evidence
of Higgs Boson was discovered, and The String Theory But even the String Theory requires an Explanatory
Equation Field to say: why Gravity has two Poles?
The secret is: Gravity behaves as a Magnetic
Field but instead
of a Magnetic
Field it behaves as an Energy
Field way much more powerfu than Magnetism If we could apply the Maxwell
Equations to Gravity we'd have a Beautiful Unified Set
of Equations!
The very notion
of a «
field», such as the Higgs
field, is a mathematical and physical model describing the interrelationship
of matter at the subatomic level, what Holloway would have called an «equational» relationship since in this vision (that espoused by Faith movement) the cosmos is a vast, ordered
equation.
If the above formula gives results which are discrepant with observation, it would be quite possible with my general theory
of nature to adopt Einstein's formula, based upon his differential
equations, for the determination
of the gravitational
field.
The quest for a unified
field theory, which would unite the four fundamental forces
of matter in a single set
of equations, is the Holy Grail
of modern physics.
I'm also almost certain that my intelligence in the
field of mathematics, (calculus and differential
equations) is far superior to your level
of knowledge... if not challenge me.
Maxwell, for instance, showed that the
equations of an electric
field would be the same as those for the flow
of «an imaginary incompressible fluid»; the purpose
of invoking the latter was «to make the mathematical theorems more intelligible to certain minds».32 At least in his early work he seems to have regarded the incompressible fluid and the electric
field as analogues whose only resemblance is mathematical isomorphism.
And in 2008, Barack Obama was the first candidate to take his name almost entirely out
of the branding
equation, leaving supporters instead with the wearable and sharable dawn -
of - a-new-day «O», brilliant in it's simplicity, rendering and image
of the sun shining over a
field which also happened to be the American flag.
The point
of such models is to avoid describing human affairs from the top down with fixed
equations, as is traditionally done in such
fields as economics and epidemiology.
The Hubble observations were made with Hubble's sharp - eyed Wide
Field Camera 3 (WFC3), and were conducted by the Supernova H0 for the
Equation of State (SH0ES) team, which works to refine the accuracy
of the Hubble constant to a precision that allows for a better understanding
of the universe's behavior.
In the 1960s, the New Zealand mathematician Roy Kerr discovered a more general class
of solutions to Einstein's
field equations.
On the Nature
of Human Romantic Interaction Karl Iagnemma, The Dial Press, $ 22.95 A computer technician who thinks he's found the mathematical
equation for romance and a botanist who secretly yearns for the author
of her
field's most trusted text are two
of the protagonists in a spellbinding collection
of short stories from Iagnemma, a roboticist and fiction writer at MIT.
They managed to solve this
equation, and obtain relevant physical quantities that are measurable experimentally to check the validity
of their solution, by employing a simple analogy with another
field, that
of quantum mechanics and the solution to the famous Schrodinger
equation.
Soon after this first attempt, Drake came up with the celebrated Drake
equation, which became the fundamental organizing principle for the new cross-disciplinary
field of astrobiology.
The numerical solution
of the time dependent Schrödinger
equation for the investigated atoms in a strong laser
field provided excellent agreement
of the theory with the experimental data in both regimes.
Some theories
of quantum gravity require space - time itself to be grainy — to be made up
of discrete quanta, presumably around 10 - 35
of a meter across because that's the scale at which Einstein's
field equations generate their bothersome infinities.
Ten linked
equations — Einstein's
field equations — describe precisely how space - time is curved for any given distribution
of matter and energy, even for something as extreme as a black hole.
Specifically, the horizon is obtained by plotting null geodesic lines on the so - called Schwarzschild metric, the solution to the
field equations posed by Einstein for describing the gravitation
field of a black hole.
In Scherrer's
equations, the density
of the energy in the
field breaks into two pieces: One decreases as the universe's volume increases, like dark matter, while the other remains constant, like dark energy.
Simulations
of black holes with different masses and spins that match, or which are oddly aligned, require the complex mathematics
of Einstein's strong
field equations.
They published a critique
of a leading paper on psychological theory, noting that the formulas in the paper relied on irrelevant
equations from the
field of fluid dynamics.
Now known as the Einstein
field equations, and published in 1916, they supplanted Newton's law
of universal gravitation and are still used today, nearly a century later.
He did so by providing an exact solution to the heart
of the theory — a
field equation that allows one to calculate the force
of a gravitational
field — and his analysis reflects the distinctive characteristics
of all his work.
Turbulence behavior in high - temperature plasma confined in the magnetic
field is described mathematically through a dynamical
equation in five - dimensional space (the three coordinates
of space to which two components
of particle velocity are added).
Some interpretations
of the
field equation are realized in a static but unstable universe, one that simply hangs around for all eternity if it manages to hang around at all.
Wilczek: Yeah, I think that the next idea — which is slightly more speculative, well a lot
of more speculative, but I think very compelling — is that we know ways to make our current, very accurate but somewhat lopsided
equations that are based on the idea that there are several fundamental forces into a new synthesis in which all the different forces appear on the same footing — what we call a Unified
Field Theory.
He and Deffner chose to test, using new
equations they developed, whether one specific quantum
field theory held true in the rare case
of a system
of extremely small size and extremely high energy — and it did.
The result was an
equation describing both matter and antimatter in terms
of quantum
fields.
These are just some
of the riveting questions
fielded by three top astrophysicists in engaging style, with great illustrations and just a handful
of equations.
On the left side
of the
equation is a tensor describing the geometry
of spacetime — the gravitational
field.
So experts usually speak
of the Einstein
field equations, plural.)
The internal structures
of giant planets are much less well known than those
of main - sequence stars because
of uncertainties in the
equation of state
of degenerate gas, the composition (typically non-solar), the interaction with the magnetic
field and, in the upper layers, the relative magnitudes
of internal heat and energy deposited from the sun.
This project is devoted to the development
of a flexible and general framework for the derivation
of geometric numerical integrators, referred to as discrete Dirac mechanics, which will be applicable to many problems from plasma physics, but also to
equations from other research
fields such as optimal control, meteorology, oceanography, geo dynamics, fluid dynamics, elasticity, solar physics, astrophysics and cosmology.
The framework is based on solving nonlinear coupled ordinary and partial differential
equations that model the kinetics
of the following phenomena: (1) mass transport in the electrolyte and electrode using the Nernst - Planck
equation; (2) electrical potential distribution using the Poisson
equation; (3) interfacial reactions that determine the boundary conditions or source terms (using the Butler - Volmer
equation or constant - flux conditions); and (4) evolution
of the electrode / electrolyte interface using the Allen - Cahn
equation within the phase -
field modeling (PFM) approach.
The solution
of the
field equations that describe general relativity can yield answers to different physical situations, such as planetary dynamics, the birth and death
of stars, black holes, and the evolution
of the universe.
D. Olive, N. Turok, The Symmetries
of Dynkin Diagrams and the Reduction
of Toda
Field Equations, Nuclear Physics B215 [FS8], 1983, 470
The plates are inscribed with the Schwarzschild radius
equation from the
field of astrophysics.
You know a lot about your
field, but that's only part
of the
equation.
Learning Outcomes: Describe the effects
of a
field Describe the effects
of gravitational forces on Earth and in space Appropriately use an
equation to calculate weights This is available as a bundle here: https://www.tes.com/teaching-resource/activate-1-p1-yr-7-forces-11777264 Please rate and comment on what you find useful so I can alter my lessons in future.
A hidden piece
of the school finance
equation is private money raised by parent organizations, funds that give schools flexibility to pay for additional supplies,
field trips, and classroom teachers.
Many in the
field are highly focused on the Mindset side
of the
equation (beliefs) and pay relatively little attention to how to achieve the Growth.