Antimatter interact with massive matter through gravity.

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Discussion Overview

The discussion centers on the interaction of antimatter with massive matter through gravity, exploring whether antimatter is attracted to matter and how it behaves under gravitational influence. The scope includes theoretical considerations and conceptual clarifications regarding the nature of antimatter and its properties.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants propose that antimatter interacts with gravity in the same way as normal matter, suggesting it is attracted to massive objects.
  • One participant mentions that while antimatter is typically stored using electromagnetic fields, it still possesses weight, as evidenced by the weight difference in containers with and without antimatter.
  • Another participant clarifies that antimatter behaves like normal matter in terms of gravity, noting the opposite charge of antiparticles compared to their matter counterparts.
  • There is a suggestion that antimatter is not particularly exotic and is encountered frequently, although a humorous remark questions the excitement of such encounters.
  • A reference is made to the time required to produce antihydrogen, indicating the challenges associated with creating antimatter.

Areas of Agreement / Disagreement

Participants generally agree that antimatter interacts with gravity similarly to matter, but there are nuances in understanding its properties and the context of its production and observation. Some disagreement exists regarding the perception of antimatter's exotic nature.

Contextual Notes

There are limitations in the discussion regarding the assumptions about gravitational interactions and the definitions of antimatter versus dark matter. The discussion does not resolve the complexities of these interactions or the implications of producing antimatter.

Who May Find This Useful

Readers interested in the properties of antimatter, gravitational interactions, and the distinctions between antimatter and other forms of matter may find this discussion relevant.

jweygna1
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How does antimatter interact with massive matter through gravity. Does it still attract? I know most antiparticles are stored using electromagnetic fields so we wouldn't see the effect of gravity, but have we ever just let one loose and seen if it falls to the earth?
 
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jweygna1 said:
How does antimatter interact with massive matter through gravity. Does it still attract? I know most antiparticles are stored using electromagnetic fields so we wouldn't see the effect of gravity, but have we ever just let one loose and seen if it falls to the earth?
Antimatter has gravity and interacts with gravity exactly like matter does.

And, despite being stored in a magnetic bottle, we can still tell that it has weight. (A box containing a magnetic bottle that's suspending one kg of antimatter weighs one kg more than a box containing a magnetic bottle that's suspending nothing.)
 
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antimatter behaves in every way like normal matter in terms of gravity. They just have the opposite charge relative to the normal species (i.e. positrons have +e charge where electrons have -e charge). You may be confusing anti-matter with dark matter which are very different things. We see anti-matter all the time and, these days, there's really nothing particularly exotic about it.
 


maverick_starstrider said:
We see anti-matter all the time and, these days, there's really nothing particularly exotic about it.
erm... You lead a much more exciting life than most of us...

atw*:"...it would take two billion years to produce 1 gram or 1 mole of antihydrogen..."

*according to wiki
 
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