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Daark Nova
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is it possible to make matter into energy and turn it back?
mustaffarel said:Matter can be transformed into an energy as Chronos and Manchot said. Einstein's equations helps us to calculate it. And Daark Nova also asked that "How can we get back the energy as matter?" In accelerators, as a particle is accelatered, the energy given to it shows itself by increasing of the particle's mass because of the fact that any particle cannot reach the speed of light.
franznietzsche said:That too but particles are created out of energy in an accelerator. Many particles only exist at extremely high energy densities. The whole point of colliding particles at such high velocities is that the particles form, produced just from the kinetic energy of the colliding particles, that is made from pure energy.
polyb said:franz,
What exactly is 'pure energy'?
franznietzsche said:YEha i guess i should be mroe careful with what i call things. When the particles collide, energy is released into the space around them, at high enough energy densities many previously unknown particles were found to form from the energy released. They weren't direct products of the collisions themselves, but formed out of the energy released itself, meaning if you added up all the rest masses of the particles you started with, and compared that to the total rest masses of the particles you ended with, the second would be higher. However this only happens at sufficiently high energy densities.
polyb said:Apparently your are missing the point of my post. Energy is an abstraction and to think of it as a 'thing' onto itself is misleading.
But to catagorize energy onto itself as a thing will mislead us in our conceptualizations of what we are really talking about.
Go back and review the physics that you have studied and you will realize what I am trying to point out.
It is subtle but important to point this out otherwise we will obfuscate the systems that we are talking about and begin to think that 'energy' is actually a thing.
polyb said:Can one directly 'measure' energy?
franznietzsche said:Can one 'directly' measure mass?
No, you can only compare it to another known mass on a scale. Or calculate from known observables. Energy works the same way.
Daark Nova said:is it possible to make matter into energy and turn it back?
polyb said:I don't think 'debating' these points with the intent of winning something will yeild either of us anything useful other than ego gratification and validation of our own self-delusions. It would be much more fruitful if we are to bring clarity to our personel understandings of these concepts and ideas so that we will be able to relay them coherently enough for it to be of use to those with which we share.
Yes, matter can be turned into energy through the process of nuclear reactions. In these reactions, the nuclei of atoms are split or combined, releasing a large amount of energy in the form of heat and light.
Yes, energy can be converted back into matter through the process of pair production. In this process, high-energy photons (particles of light) can create matter-antimatter particle pairs, which then combine to form new particles.
E=mc2 is Einstein's famous equation that describes the relationship between mass and energy. It states that the energy (E) of a body is equal to its mass (m) multiplied by the speed of light (c) squared. This equation is important in understanding how matter can be converted into energy and vice versa.
The conversion of matter into energy and back has potential applications in nuclear power, where it is used to generate electricity, and in medical imaging and cancer treatment through the use of nuclear medicine. However, the process is currently only possible on a very large scale and is still being researched for potential future applications.
In theory, the process of turning matter into energy and back is sustainable as it does not create or destroy matter. However, the practicalities and potential consequences of harnessing this process on a large scale are still being studied and debated. Additionally, the resources and technology required for the process may not be sustainable in the long term.