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NUCLIDES
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what did feynman mean when he said "positrons are electrons traveling backward in time"?
NUCLIDES said:if we consider this fact to be a physical reality then we can explain why there is no antimatter in our observable universe. The antimatter can actually be present, but in negetive time . So in a way it could be related to astronomy .
phinds said:Your idea does not hold water, the most obvious reason for which is that there IS antimatter in our universe. It has been created at CERN and did NOT disappear immediately, as it would if it actually traveled backwards in time. It also exists in the Van Allen Belt, I believe.
NUCLIDES said:The fact is that these are examples of antimatter being created now. What I am referring to is one of the biggest questions of astrophysics, why is there no antimatter in our universe if matter and antimatter was to be created in equal amounts.
phinds said:Your idea does not hold water, the most obvious reason for which is that there IS antimatter in our universe. It has been created at CERN and did NOT disappear immediately, as it would if it actually traveled backwards in time. It also exists in the Van Allen Belt, I believe.
BruceW said:changing one electron into a positron and reversing its direction of motion and parity (but not changing any other electrons), we will not obtain the same system that we started with.
Positrons are subatomic particles with the same mass as electrons, but with a positive charge. They are the antiparticles of electrons, meaning they have the opposite charge.
Positrons are related to electrons as they are their antiparticles. This means they have the same mass as electrons, but with a positive charge instead of a negative charge.
The concept of a positron traveling backward in time is based on the theory of relativity and the concept of antiparticles. It suggests that positrons can be interpreted as electrons traveling backward in time, which is just a mathematical interpretation and does not mean that positrons are actually moving backward in time.
The concept of positrons traveling backward in time is a theoretical idea that has not been proven. It does not have a significant impact on our understanding of time, as it is just a mathematical interpretation and does not have any real-world implications.
There is currently no scientific evidence to support the idea that positrons can actually travel backward in time. The concept of positrons traveling backward in time is a theoretical concept that has not been proven or observed in experiments.