The Nature of Gravity, Part 1: Earth's Potential and Acceleration Fields
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- čas přidán 1. 06. 2024
- The first video in a series, in which we will explore the nature and essence of gravity! In this video, we meet the concepts of potential and acceleration, primarily as they apply to the space around Earth. Once familiar with these concepts, we calculate the escape velocity of the Earth, moon, and sun.
Links for further study:
en.wikipedia.org/wiki/Gravita...
en.wikipedia.org/wiki/Newton%...
Thanks to fesliyanstudios.com for the background music! :)
#math #science #physics #gravity #philosophy #potential #acceleration
Wonderful.
Thanks Curt, glad you liked it! :)
19:13 I like this guys approach
I'm extremely excited to see how you tackle presenting Relativity in a digestible, but still hopefully rigorously mathematical way, as I've yet to find any videos on CZcams that do so without sacrificing either the mathematical complexity or the intuitive explanations. Coming from your Buoyancy and Complex Numbers in Quantum Mechanics videos, I know you'll do it justice!
Thanks! I hope to do the topic justice :) It’ll be a challenge though! 😅
Hi wholeheartedly second this comment! Excited to see that video!
it is great presentation, clear , simple ,logic , your equations is ordered well thanks Richard Behiel
Thanks, I’m glad you liked it! :)
You did a fantastic job. I appreciate how you explain things in an understandable manner.
Very interesting and informative . You have a deep understanding of this .
Amazing. Instantly subscribed 👍
Great video 😊
Thanks! :)
I hope you'd make more of these classical mechanics videos
for the algo. Awesome videos!
Thanks! :)
Very well made
Thanks, glad you liked it! Working on part 2 now, hopefully it’ll be posted early next week :)
Thank you. Well presented.
Thanks Ernesto, I’m glad you enjoyed it! :)
Very nice.
Great work 👍
One of the greatest failures in science representation, after quarks, is the way that the change of density in the metric itself isn't displayed.
It's like a one dimensional curve in a plane of insuring density.
But it is THAT gravity is the measure of the density of local free space which gives the understanding that gravitational lensing is refraction through a more dense substance. Space with gravity field vector.
how to explain the variations in earth gravity field measured by NASA GRACE, GOSE mission? and in the moon by GRAIL mission?
"No one knows why G has the value it's has"
G is just a coefficient to convert gravitational force to the metric system
11:55 does this mean that if you were in a rocket hovering over Earth (not in orbit, but using its engines to stay stationary relative to Earth), at 2 radii from the center of Earth, you'd weigh half as much as on the surface?
Here I go again on my own~
I like your animations, they are a help for visualizing. You might want to consider all the mass from the sun, cosmic rays, solar wind, meteorites, dust and things that collide and interact with the earth over billions of years. Indeed on time scales of seconds and days many things hit the earth. But over billions of years they add to the mass and momentum of the earth. Also, look at the earth, zoom in to near the surface, zoom to microscopic layers in the air and ocean. Notice that there are horizontal flows and that velocity has a vertical gradient. Also, g = 9.8 (Joules/kg)/meter is the gradient of the potential. The potential can be visualized as a fine fluid. You cannot see it with human eyes, but you can paint it with tiny particles. The mass of a particle in equilibrium with air, whose classical ideal gas particle velocity is the speed of light is about (1/7 million) of the mass of an electron, about 0.025 electron volts which you can convert to mass. Having a fine grain is helpful when you want to visual complete electron and proton fields. The simple de Broglie electron does not have to be symmetric and too too simplistic. It can have substance and beauty as well.
Finally, 9.8 (Joules/kg) per meter can be divided by (1000*FaradaysConstant = 1000*AvaogadrosNumber*ElectronCharge = 96,485,332.12 Joules/kg per electronVolts/amu) to get 1.01569843E-7 electronVolts/amu per meter. Lifting a mass in 9.8 Joules/Kilogram per meter acceleration field by one meter only changes the energy of each (close to Codata 1.660 539 066 60E-27 kilogram or one electron proton pair) by 101.569843 nanoElectronVolts.
Right now it takes many hundreds of thousands of fragmented and separate little images like this, memorized, to keep track of things from physics. But if you can put the constants, equations, models and simulations online for all to USE, see, share, extend - the pictures and behaviors of the real world would be there, in one calculable space, in exquisite simulators of the real world, for the whole human species.
The more dense the potential field, the slower the rate of all clocks. That is gravitational potential, velocity potential, electric potential, magnetic potential, chemical potential, thermodynamic potential - if you are careful in drawing and calculating.
The more dense the potential field, the slower the rate of all clocks. That is gravitational potential, velocity potential, electric potential, magnetic potential, chemical potential, thermodynamic potential - if you are careful in drawing and calculating. The Universal potential for the "big bang region" is C^2 = 8.9875518E16 Joules/kg from which the others seem to be subtracted.
Richard Collins, The Internet Foundation
Hi, fellow Richard, thanks for the superchat! :)
Thanks for taking the time to write such a thorough comment, and I’m glad you enjoyed the video. There’s a lot to unpack here and honestly I’m not sure I follow. Do you have a website where I could read more about this, or link me to the paper?
I know it is obvious that only circle and ellipse closed and hyperbola is not. But why one can do both in one gravitational field.
Because of that negative sign, the G field or at least the interaction with time is hyperbola or use split complex number or (time number)^2 - (space number)^2 is invariant ( or at least as the base).
Can the transform matrix somehow handle this in differential geometry.
Sorry I just ponder.
Физики гравитационный потенциал обозначают, как квадрат первой космической скорости:
v^2 = - GM/R.
Этот параметр имеет отрицательное значение (как и потенциальная энергия) и измеряется в Дж/кг.
Так всем понятнее физический смысл гравитационного потенциала. Соответственно, Природа гравитации становится настолько простой, что понятна даже школьнику. Подробнее об этом в популярной форме здесь: czcams.com/video/K5AdjxTSnaI/video.html
А кратенько - здесь: czcams.com/video/sjzWXWRBdak/video.html
What is the shimmering noise in the background of your recording that goes in and out. It's distracting and It's got a nostalgic eerieness to it.
Richard thankyou this is excellent for a retired engineer trying to get his head around the physics at a deeper level. But on this topic in particular I submit the following:
*BIG BANG Gravity Problem:*
1. Big Bang assumes energy and matter from nothing in a quantum singularity or fluctuation
2. The density is quoted variously as extreme to infinite
3. The total mass of the universe curves space and shapes the universes destiny
4. Black Holes have an escape velocity at their event horizon equal to the speed of light
5. The size of a Black Hole is measured by its mass which gives the diameter of the event horizon
6. The mass of the universe is ~1e80 protons = 6.7e53 Kg
7. The formula for escape velocity = (2GM/r)^0.5 Therefore r = 2GM/v^2
8. Given M = 6.7e53 Kg and v = 3e8 m/sec therefore Dia = 2.r = 52.5 billion light yrs
9. The universe cannot at any time have been smaller than 52.5 billion light yrs in diameter
10. This is called the Schwarzschild's Radius of any mass and is well known
11. Hence the matter in the universe can only have been created *after the expansion of space..*
*The Big Bang is falsified as a violation of the law of gravity! Q.E.D.*
This is uniquely consistent with the Genesis account of creation of stars on day 4 after the expansion of space. Also _"Let there be light."_ on day 1 explains the uniform CMBR being a burst of photon energy with no mass.
Neutron decay cosmology
Gravity pulls matter towards event horizons. All matter becomes neutrons before contacting event horizon because electron capture.
Neutrons fall THROUGH spacetime, because event horizons are kinda everywhere and everywhen, the neutrons fall through. They cross the EinsteinRosen bridge but the other side of the bridge moves around to the lowest energy density point of space where the quantum basement is lowest and easiest to penetrate.
The neutron emerges in deep void, and soon decays into amorphous monatomic hydrogen. Dark matter.
The decay from near point particle neutron to one cubic meter of amorphous hydrogen gas is a volume increase of 10⁴⁵
Dark energy.
In time the decay products stabilize into monatomic hydrogen, again, and follow usual evolution pathway from gas to filament to proto star to star until in the distant future it is again about to contact an event horizon.
Event horizons act as energy pressure release valves venting from highest energy pressure conditions to lowest energy density points of space.
From aggregated singularity to diffuse dispersed distributed
Neutron decay cosmology
It's amazing that you have time for this as well as running spacex and twitterx etc. Cool video though, thanks Elon