(Twenty minute read)
What goes up must come down. Simple.
Far from it, as energy comes in all kinds of different forms and can be converted from one form to another.
Energy is the capacity for something to do work on something else.
Kinetic energy. The energy of something that’s moving.
Gravitational potential energy. Something that’s way up high has much more gravitational potential energy than something that’s lower.
Chemical potential energy. This is the energy that’s stored in some molecules which can be transformed into other forms of energy when chemical reactions happen.
Thermal energy. Heat something up, and it will have more energy than if it is cold. All living things have some thermal energy, and many of them deliberately make thermal energy by causing chemical reactions to take place
Electrical energy. This is transmitted along power lines.
Magnetic energy. Magnetic fields have energy in them.
Mechanical potential energy. Compress a spring and it stores energy which can be released later.
Energy carried by sound. Sound waves consist of regions of air which move back and forth together, carrying both kinetic energy and mechanical potential energy
Energy is carried by light.
Nuclear energy — the sun works by fusing very light atoms together to make heavier ones, releasing energy in the process.
The energy of just being matter.( E=mc^2, relating the amount of energy an object has (when it’s at rest) to its mass.)
We cannot create or destroy energy they all coexist, except for non-living things that have been existing by themselves since the start of the universe.
Living things all need energy to live , to move and they get it by eating, which gravity does, eating Mass.
Where gravity gets its energy? gravity has to be getting its energy from somewhere, gravity is nonlinear: it acts upon itself to create energy, that is, a gravitational field itself is a source of more gravity.
Gravity is a “force” that causes all objects with mass to attract each other. However it does not push or a pull, rather it curves space to bring them together.
There are three dimensions of space we live in: up-down, left-right, forward-back but there is another that we forget about and that is time a dimension.
Mass causes gravity by warping space, and space and time are part of the same thing, spacetime… so mass can also curve and warp time.
We have no way of observing it and nothing in our daily existence leads us to believe time can be altered. It is, arguably, one of the most provocative and important ideas humans have ever conceived.
So the gravity that is responsible for deflecting starlight as it grazes the Sun also deflects gravitational waves. The curvature of space-time is gravity. A ray of light… it bends in the presence of gravity and because the range of gravity is infinite: No matter how far you are from the source, its gravitational field, though weak, is still present.
So time passes’ faster for a clock in the weaker gravitational field.
As astronauts have experience gravity does impact cell metabolism in organisms. A lack of gravity means your bones and muscles need to work less, and thus your body will shed this “waste.” So while gravity may not directly affect a single cell’s metabolic activity on a biochemical level, gravitational forces exerted on an entire organism affect organ/tissue/(ultimately cellular) function.
Surprisingly, gravity itself is the reason why flames rises upwards! called convection.
It’s worth noting that we really don’t have a good understanding of gravity still. Although we know a lot about it’s behaviour.
Gravity is not, technically, describable either as having energy or as being energy, although a description of it as “negative energy” is often used in pop. sci., as an aid to people as lacking in mathematical acuity as myself.
Here is my understanding.
Everything in the beginning was in form for energy, i.e. photons. At certain point of time energy got converted to matter and gravity came into existence. When gravity came to existence the gravitational energy or potential came into existence, since then it is converting to other forms and vice versa.
The problem here is that on think that gravity between two masses is a force originating from the masses themselves.
This is where it becomes complex. What were these two Masses?
Mass, in physics, is a quantitative proportion of idleness/inertia, an essential property of all matter. It is, as a result, the obstruction that a body of matter offers to an adjustment of its speed or position upon the action of force. Matter is just ‘stuff’. Specifically, stuff with mass, meaning it gets attracted by gravity and exerts a gravitational pull on other stuff.
The fact that all of them respond to gravity (because they have mass).
So what we are looking at is Dark v Light.
More dramatically, these are invisible, because it turns out that light is an oscillating electromagnetic wave.
Finally, observations of the actual universe tell us that there’s a lot more stuff out there than we can actually see, and simulations show that to form galaxies at all we need significant amounts of invisible stuff to hold them together. What I want to convince you of is that there’s nothing strange about dark matter; it’s just a different type of stuff that outnumbers ‘everyday’ stuff by a factor of four, but can’t clump together to form atoms or planets.
If you mean dark as in lack of light – no, it does not.
As I understand it, I am made up of atomic particles of fluctuating light, which is the fundamental foundation of all that exists, so yes, darkness absorbs mass and the light that forms it.
If you mean dark MATTER – then this hypothetical form of matter indeed has mass. Space does have a mass as it isn’t a perfect vacuum and there are a few factors that contribute to the overall mass of empty space. The universe is expanding. Every single point is moving away from every other point over time. (However in the real universe, gravity ought to be slowing down the expansion but space has some strange property (A mysterious Something’ is not a good name for the effect, so you decide to call it ‘Dark Energy’ )after noting that the acceleration requires some additional energy source that you can’t detect. that you’ve never seen before. the faster its rate of inflation got (this is pretty much where we’re up to with Dark Energy. The universe is expanding, and the expansion is getting quicker. We don’t know for sure why that’s happening.)
Light does not have mass then it should have zero energy however light is composed of particles (energy packets) since it was able to knockout electrons from their orbits – relativistic mass the mass that is assigned to a body in motion.
We think the weight is the same everywhere … because we all live on the surface of the planet Earth!
Weight depends on the effect of gravity, so it can change depending on where it’s measured.
Weight is a force: it is the force acting on a given mass in a gravitational field, which is characterized by the gravitational acceleration.
All things are made up of matter. Mass is a measure of the amount of matter that an object has, or how much “stuff” it is made up of. Weight is a measure of how much gravity pulls on a mass or object. Mass is an intrinsic property of matter. It doesn’t change depending on where you measure it.
When scales show “kg” it is just an estimate of the mass above them.
But in orbit mass would not push on the scales at all. An object’s mass doesn’t change (unless you remove some!), but its weight can change.
It is calculated that the mass of the universe is 2.55 × 1049 tons.
energy cannot be created or destroyed” is a very naïve way of expressing energy. Dark energy is weird because it has negative pressure. Which means that when gravity does work on it, it makes it expand, not contract.
In other words, dark energy behaves as though gravity was repulsive. So dark energy expands, as gravity is pumped into it.
Where does this energy ultimately come from?
As dark energy expands, it borrows energy from gravity, and the gravitational potential energy goes down…
The universe is now bigger as a result of expansion, so there is “more gravity” overall. So there is more negative gravitational potential energy, balancing out the increased (positive) total energy content of dark energy.
Energy cannot be produced, only generated and transformed. Most of the energy which we used is the product or result of the Sun.
There are 4 mechanisms by which energy is transferred as heat (conduction, convection, evaporation, and radiation). These 4 mechanisms transfer energy by random particle motion in the presence of a temperature gradient.
The momentum of the photon will cause it have a “weight” in a gravitational field, but given that it has no mass, there will be no gravitational attraction between individual photons. So far, there has been no evidence that photons interact with each other gravitationally.
“Inertia” and “Energy”, which, nonetheless, are absolutely fundamentally always simultaneously co-exist in every material object.
If you accelerate a mass, i.e. increase it’s energy, the mass goes up by the same amount because they are one and the same.
Who knows what is mass or time? Mass is a category, time is still independent parameter.
As far as I can see the only relation that exists directly between time and mass is in relativity both have to be deflected to create the big bang.
The nature of dark energy ultimately determines the fate of the universe.
When you combine Inertia with Energy and Mass with Light /Time in a Magnetic field of momentum all under the umbrella of Gravity the collapse of the pre-solar nebular (cloud of gas and dust/ the big bang ) was caused due to gravitational forces.
Where did that gravity come from?
Who was lifting balls and dropping them above the gas giant then?
Lets say we have two objects with equal mass close to each other. So gravity does its job and it pulls each other closer, this gets turned into kinetic energy. Kinetic energy comes from the gravitational pull so where does the gravitational pull gets its energy. If that energy isn’t being recycled from some where else..
Now let us reverse this process.
Suppose the two objects are next to each other, then take them apart. You have to spend energy to do that against gravity. Now with your logic, you can say that energy that you spent in moving the object, is lost. It is not.
Overall energy of the universe is constant. Gravitational pull has finite energy capacity even across infinite distances. But Energy can be converted form one type to another and that energy comes from the energy that brought the matter into existence in the first place. It is a “default” energy from nowhere which mass already has as every particle of matter in the Universe has a surplus of of energy or potential energy.
Like Earth the whole Universe sucks.
Our star the sun has being supplying energy for billion of years,( with 10,000 times the world’s total energy use)
which has been converted by plants to grow die and make coal
For us to use solar power and wind power, we need to be able to store a lot of energy.
Coal is king, but not everywhere.
When we turn our clocks forward each spring, we move an hour of daylight toward the end of the day. In doing so we saved 0.5% of electricity. Even though that sounds small, it’s actually 1.3 billion kilowatt-hours. That’s how much electricity 100,000 houses use in a whole year.
The current answer is that the energy was provided at the beginning of time in the Big Bang model of the universe.
I think it is the energy of momentum THAT PRODUCED THE BIG BANG.
If the universe was static there would be no gravity.
Energy varies according to reference points, i.e. its not absolute. This however cannot be technically accurate as “gravity” is a type of interaction or force that exist between any two bodies having mass.
Where did that spent energy go? This is given to gravity!
The motion of the Earth around the sun creating our gravitational field that “adds” energy
Leave the objects on their own and they will come closer again, and will gain KE and they will gain exactly same amount of KE as the amount you spent in separating them. What it tells is that in either case, the energy is not lost, or created, it is converted from one form to another.
When you take them apart, you return this potential energy to system and all energy is constant in the universe, but may change forms.
If the force originate from the matter in the masses, then it might be possible to block some of that force and the ‘attraction’ will be smaller.
We know that the universe is composed of over 90% dark matter and dark energy. Dark energy comprises about 70% of this. So far, dark matter and energy remain undetectable and until there are the mechanism that produces gravity, will probably remain a puzzle.
Space is realm eternal and infinite. There is no vacuum in space. Everything in the universe seems affected by gravity – even light (see black holes)
If you stood looking down on space it is therefore not completely empty. It is filled with photons, gravitational and electromagnetic fields, protons, neutrinos, atoms of hydrogen, helium, etc. These particles have mass. Space cannot be empty.
So the universe would not exist with those values. The answer to why matter exists in the universe is because all massive particles are just the fabric of space excited into little packets. A vacuum actually has energy in some form or another. Black holes aren’t really objects, but rather regions in spacetime. In fact, this is so true that black holes are what we call vacuum solutions. They are hypothesized by gravity to be collapsed (neutron) stars, so the collapsed remnant must be there somewhere (or maybe it transforms into the energy of the gravitational field). The mass is still there, inside the event horizon. Black holes are made of gravity alone, gravity being sourced by gravity itself. to the point of completely evaporates. Gravity propagates through vacuum twisting space and time around so that time (the future) points inwards towards the singularity. Eventually they squeeze to the point that their energy emerge into some other domain. The big bang.
All matter can only move and interact with other gravitational fields. In the end, all energy is still equivalently conserved.
Therefore, all energies are inherently cohesive with matter.
The result is that the 2 masses are pushed toward one another. If only one mass is used, the moving mass will always be pushed toward the light beam the Big Bang Then one does not have to find where the energy of gravity comes from because the force is coming from all direction of space and is probably caused by all what is moving through space at the speed of light.
For the purposes of understanding the ‘source’ of the black hole’s gravity, because the singularity is in the future of every particle that has yet to hit it, and causality requires that the future has no effect on the present. One must stop thinking of gravity as a force at this point, and remember that gravity is an artefact of time- space. so as time stops, “gravity-space” becomes infinite, and where space stops, “gravity- time” becomes an infinite energy and a force coming from every direction.
The universe exists beyond your ability to see it with light. (The furthest light we can see is the cosmic microwave background (CMB), which is the light left over from the Big Bang, forming at just 380,000 years after our cosmic birth.)
Therefor I propose that a black hole in another adjacent universe to ours rubbed up against our universe resulting in the Big Bang.
In a new study, Stanford physicists Andrei Linde and Vitaly Vanchurin have calculated the number of all possible universes, coming up with an answer of 10^10^16.
Indeed, a previous measurement by the Hubble Space Telescope suggested there were 2 trillion galaxies spread across the universe. But the latest discovery counts only hundreds of billions of galaxies instead.100 billion but this number is likely to increase to about 200 billion as telescope technology in space improves – The Webb Telescope.
there were two trillion (2×1012) or more galaxies in the observable universe, overall, and as many as an estimated 1×1024 stars (more stars than all
There are an estimated 100 billion stars in our Milky Way galaxy alone making up about 100 billion suns. The Earths sun 4,603 billion years.
Remember that when contemplating the universe light has limits. Close your eyes, and see the universe in your mind, without the light that enters your eyes. The limits of light are the deceptions of the nature of the universe. You must “see” past them.
The observable Universe is 92 billion light-years in diameter.
Will our Sun become a black hole?
No, it’s too small for that! The Sun would need to be about 20 times more massive to end its life as a black hole.
Finally. How skewed our perception of reality is.
Our world is shaped by our senses our knowledge and our societies.
We apparently according to Quantum Physics when we measure something it collapses into two state of reality, that are both unmeasurable when observed. So that when observed by two people their disparate records are incompatible, making it impossible for them to be regarded as objects. Two worlds exist simultaneously at the Quantum level.
Which one did the Big Bang happen in.?
All human comments appreciated .All like clicks and abuse chucked in the bin.