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m4n8tpr8b's latest activity
m4n8tpr8b
replied to the thread
Cataclysmic' solar storm hit Earth around 2687 years ago, ancient tree rings reveal
.
You copied a mistake from the UofA press release. However, as correctly told in the actual scientific paper, there have been two more...
Nov 29, 2024
m4n8tpr8b
replied to the thread
Scientists find highest energy cosmic ray electrons ever seen
.
Someone along the way probably mixed up parsecs & lightyears.
Nov 26, 2024
m4n8tpr8b
reacted to
MHF's post
in the thread
Scientists find highest energy cosmic ray electrons ever seen
with
Like
.
I was not aware of any stars (burning or dark) 2 lightyears from the solar system. Proxima Centauri is double that distance.
Nov 26, 2024
m4n8tpr8b
reacted to
stanwaterman's post
in the thread
Scientists find highest energy cosmic ray electrons ever seen
with
Like
.
Rest-mass is constant, the mass at rest! The apparent mass increases with speed not acceleration although if you are accelerated you do...
Nov 26, 2024
m4n8tpr8b
replied to the thread
Scientists find highest energy cosmic ray electrons ever seen
.
40 TeV for an electron with a rest mass of 0.511 MeV, that's a Lorentz factor of 7.8 ×10^7 (meaning it's relativistic mass was 78...
Nov 26, 2024
m4n8tpr8b
replied to the thread
James Webb Space Telescope 'pushed to its limits' to see most distant galaxies ever
.
Galaxy formation is a rather uncertain topic because it involves dark matter, which we still cannot identify, and can only guess its...
Nov 26, 2024
m4n8tpr8b
replied to the thread
James Webb Space Telescope 'pushed to its limits' to see most distant galaxies ever
.
Your caption for the diagram with ten sub-diagrams starts "Five candidate galaxies identified by the JWST". Actually, the image shows...
Nov 26, 2024
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