this post was submitted on 27 Sep 2023
468 points (99.0% liked)
Science
13191 readers
17 users here now
Subscribe to see new publications and popular science coverage of current research on your homepage
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
If an anti-gravity particle does exist (that expels both normal mass and itself), it would be incredibly hard to find.
They would push away from each other and disperse outside of the solar system.
Like 1 particle per 1000sq km kind of thing.
Which would push all the galaxies away from each other, always accelerating away from each other, but in a decreasing fashion....
It would also press inward on galaxies making it look like mass on the outer rims of galaxies having more gravity than they should.
And there would be a SHIT ton of this matter, that would be dark because it's so spread out,
..wait a minute ..
Dark energy is not galaxies moving away from each other but instead its new space being created in between which makes it appear like they are moving away from each other. That's why distant redshifts can exceed the speed of light, because they are not really moving, so the speed of light law is not broken.
They are talking about dark matter not dark energy.
Could it be a particle that has negative mass ?
In this case it would not appear in the CERN.
I'm way out of my field so please anyone, correct me if I'm wrong.
The CERN is creating particles from pure energy, E=mc² means that if you focus a lot of energy in a single point some of the energy is turned into matter. From my understanding the generated matter is random particles.
Now if we want to create a particle with negative mass we need negative energy. What is negative energy? I have no idea but if we manage to focus a huge amount of negative energy we will get particles with negative mass.
Do we need negative energy?
Don't particles appear out of thin are and then collide again and disappear?
0 = E = -mc² + mc²
You can have negative mass without requiring negative energy.
If you created a negative mass particle at the same time as a positive mass particle, you'd essentially be able to do so with 0 or near 0 energy because they have opposite signs and would cancel out - negative energy plus positive energy. Free energy?
Whoa!!!
You may be on to something here!
This stuff would be convenient in keeping our wormholes from collapsing.
Fun theory, only if it holds some water..