- #1
lwymarie
- 90
- 1
just a simple question: do u think matter can be created? nowadays some scientists do believe that
and what's your reason?
and what's your reason?
It is not a question of what one thinks. Energy is used to create matter. It is routinely done in large particle accelerators.lwymarie said:just a simple question: do u think matter can be created? nowadays some scientists do believe that
quasar987 said:At the light the the many experiments that confirm this, it is difficult to doubt it anymore.
When a particle and its anti-particle colide, they anihilate each other and "transform" into a photon (light). Photons have no mass, so one could say that mass "disapeared".
The opposite process also happens. Sometimes, a photon splits into a particle and its anti-particle. In this case, mass seems to be "created".
In these two classes of interaction, mass is not conserved. But something is: energy. And since [tex]E = mc^2[/tex], this is not really surprising.
lwymarie said:since mass is not conserved, why is energy conserved?
lwymarie said:but recently some scientists believe that matter can be created out of nothing.
The answer to this question is the holy grail of physics: how did the universe begin? Why is there not nothing?lwymarie said:but recently some scientists believe that matter can be created out of nothing.
According to the Law of Conservation of Matter, matter cannot be created or destroyed. It can only change forms.
In the Big Bang theory, all matter in the universe was created in a massive explosion. However, this does not go against the Law of Conservation of Matter as the matter already existed in a different form, and was simply transformed into the matter we see today.
Matter cannot be created in a laboratory, but it can be transformed. For example, elements can be combined or separated through chemical reactions, but the total amount of matter remains the same.
No, matter cannot spontaneously appear or disappear. Any changes in matter are a result of physical or chemical reactions.
There are no known exceptions to this law. It has been extensively tested and observed in various scientific experiments, and has never been proven wrong.