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Wow TIL two cool facts for antimatter use. Exploring the Universe’s Origins: The Big Bang should have created equal amounts of matter and antimatter, yet our u

Wow TIL two cool facts for antimatter use. Exploring the Universe’s Origins: The Big Bang should have created equal amounts of matter and antimatter, yet our universe is predominantly matter. Studying antimatter helps scientists investigate this imbalance, shedding light on the fundamental laws of physics. Medical Applications: Antimatter plays a role in medical imaging techniques like Positron Emission Tomography (PET) scans, which are used to detect conditions such as cancer.

naveen99 2y ago
It doesn’t really help with the origin. If the universe is infinite, any possibility will happen in some part of the universe but not necessarily in the part accessible / visible to us. So our part of the universe could have antimatter or a different part could…
- K0balt 2y ago
  So, are you saying that it might be possible that there are antigalaxies somewhere out there beyond the visible horizon in spacetime ? I mean, of course “possible” like flying elephants possible, but maybe theoretically predictable? Like maybe the matter went this way, and the antimatter went that way in spacetime? Or maybe all the antimatter went before the Big Bang and the matter went after? I mean that’s wild but it would fix the symmetry problem!
  - Cthulhu_ 2y ago
    I'm an amateur at best but I've only recently realised the implications of the observable universe, that is, we only know of the existence / size of the universe in what we can see, and there may be (and correct me if I'm wrong) way more Stuff beyond this 'boundary' whose light hasn't / will never reach us.
    - robotworgen1994 2y ago
      My understanding is for the geometry of our observable universe to make sense, our actual entire universe must be substantially larger to account for the mass needed to make it so.
      - K0balt 2y ago
        So, what I’m hearing is that between us 3 amateurs, we should write an ebook on antimatter asymmetry and sell it on a website with healing crystals and magnetic antimatter bracelets? I can publish the paper, when do we start?
- marcyb5st 2y ago
  While this might be possible, we would see annihilation events at the boundaries of matter/anti-matter zones. Additionally, statistically speaking, such a degree of order is highly unlikely since it would have much lower entropy compared to an homogeneous mix. It is much more likely that there is some unknown physical process that broke the symmetry between matter and anti-matter and so our universe is matter rich and anti-matter poor.
  - deleted 2y ago
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naveen99 2y ago

It doesn’t really help with the origin. If the universe is infinite, any possibility will happen in some part of the universe but not necessarily in the part accessible / visible to us. So our part of the universe could have antimatter or a different part could…

K0balt 2y ago
So, are you saying that it might be possible that there are antigalaxies somewhere out there beyond the visible horizon in spacetime ? I mean, of course “possible” like flying elephants possible, but maybe theoretically predictable? Like maybe the matter went this way, and the antimatter went that way in spacetime? Or maybe all the antimatter went before the Big Bang and the matter went after? I mean that’s wild but it would fix the symmetry problem!
- Cthulhu_ 2y ago
  I'm an amateur at best but I've only recently realised the implications of the observable universe, that is, we only know of the existence / size of the universe in what we can see, and there may be (and correct me if I'm wrong) way more Stuff beyond this 'boundary' whose light hasn't / will never reach us.
  - robotworgen1994 2y ago
    My understanding is for the geometry of our observable universe to make sense, our actual entire universe must be substantially larger to account for the mass needed to make it so.
    - K0balt 2y ago
      So, what I’m hearing is that between us 3 amateurs, we should write an ebook on antimatter asymmetry and sell it on a website with healing crystals and magnetic antimatter bracelets? I can publish the paper, when do we start?
marcyb5st 2y ago
While this might be possible, we would see annihilation events at the boundaries of matter/anti-matter zones. Additionally, statistically speaking, such a degree of order is highly unlikely since it would have much lower entropy compared to an homogeneous mix. It is much more likely that there is some unknown physical process that broke the symmetry between matter and anti-matter and so our universe is matter rich and anti-matter poor.
- deleted 2y ago
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