Hi, in this video let’s try to visualize gravity and I want to share a couple of very
simple tricks which will give you an intuitive understanding of the phenomenon.
Since when I saw this kind of visualization for the first time
it didn't helped me much to understand how gravity works.
But maybe it's just me.
What we know about gravity so far - it’s considered to be a curvature of space-time
continuum, maybe it’s a force and graviton mediates the gravity or maybe not.
We know that inertial mass is indistinguishable from gravitational one - I wonder by the way and that it looks
like that all matter in the whole universe gravitates towards each other. And also there
is a huge issue with building a quantized model of gravity - general relativity and
quantum mechanics doesn’t fit each other well.
So here is a couple of tricks which will help you to master gravity.
Gravity has four ingredients: movement, acceleration, matter and space. So as
for the first trick - try to think about space as fluid. In this visualization we will use
water. And as for the second trick - the matter and antimatter - here is a proton and an antiproton
which are entangled, entanglement is not required by the way - it’s just easier to hold it in
the hand. Let’s take a closer look. These particles have a couple of important properties.
First of all if the proton touch the antiproton (don’t do this at home) they both will annihilate
back to space. But don't worry - I have the spare pair so we will be able to proceed.
And ideally it would be great to make them both out of ice but it is what it is.
But what is more important - main property of an antiproton is this - it radiates space.
And symmetrically the proton does this - it pulls the space in.
You can imagine matter as a sort of sponge with infinite capacity. Any particle that can pull space in like this
is considered to have a mass.
Keeping this in mind let’s pour a bit of space in the aquarium - we can use antimatter
to do that but I already have a bit of spare space ready so we do not need to wait.
And now let’s put matter in space.
On the first glance nothing is happening, right? Maybe a bit of quantum fluctuations,
so let’s color the space.
And this is the visualization of gravity itself. If you think about it as a flow of space
a lot of things start to make sense. You don't need graviton since in this case gravity
is not a force, you can implement gravitational lensing at no additional cost, now it’s
easy to understand why massless particles like phonos are influenced by gravity, you
don’t need the concept of dark matter - it can be naturally replaced with the flow of
space and you don’t need curvature of space to enable gravity.
Like it so far - hit the like button for the youtube algorithm!
Now let’s quickly address the curvature of time. Why is inertial mass is indistinguishable from gravitational one?
Imagine you standing on the surface of the Earth. What’s happening with
space in our case? It flows through us towards the center of the planet. And what is happening
when we move through space? Time slows down. And all this space not only moves through
us - it moves with acceleration. And that causes inertia - we call it weight in case
of gravity but it’s basically pure inertia. You see - we do not need the concept of curvature
of space-time continuum - it is just an inertia caused by the accelerating flow of
space as it approaches the planet through the matter on the surface of the planet.
If you want to dive a bit deeper, for example why we can treat space as fluid, how the universe
is expanding and what the dark energy is or why time slows down when the speed goes up
- make sure to watch this video where the whole concept is expanded.
On the other hand - antimatter can be visualized like this - basically we can think that antimatter squeezes space out of itself.
Antisponge of infinite capacity.
If we scope out electromagnetism - starting at some distance one proton and one antiproton
basically do not see each other.
In almost any configuration of four particles - like this one, or, for example, like this one we will end up with
matter gravitated to each other
and antimatter has only two options - to be pulled in by massive objects and annihilated
or to be scattered in space as separate antiparticles, not even clouds or dust - just separate atoms
of antimatter.
And recently antimatter has been found - ironically it’s treated as normal matter.
It is called warm–hot intergalactic medium - the answer to the missing baryon problem
appears to be the best fit for the antimatter.
If you think about this - we see only half of the matter today because another half has
already annihilated with the same amount of antimatter which were unlucky enough to be
close to the concentration of matter and which were pulled in by gravity.
And this process, by the way, happening even today.
And second half of antimatter - where most likely you will find it if it radiates space
and annihilates with matter? Most probably between galaxies as separate particles.
As for gravity once again: treat space as a fluid,
remember that particles with mass pull space in,
when you stand on the surface of the planet all this space flows with acceleration through
you towards the center of mass, the flow of space causes time to slow down
and acceleration of the flow causes inertia.
Now you are an expert in gravity!
Anyway - if you liked the video - consider
to hit a like button, subscribe and I’ll see you in the next videos, bye!