Skip to main content
29 events
when toggle format what by license comment
2 days ago comment added Mithoron I, again, remove some stuff like "present in the universe, propagates in the hydrogen medium" This is chemistry, not astronomy. Hydrogen on Earth certainly shines just as well.
2 days ago history rollback Mithoron
Rollback to Revision 6
2 days ago history edited Dhakshin Ram CC BY-SA 4.0
edited title
Jun 30 at 9:17 vote accept Dhakshin Ram
Jun 30 at 8:23 comment added Poutnik It seems you have been taken by surprise that human eyes are able to detect photons from just a small part of the electromagnetic radiation spectrum.
Jun 30 at 3:00 history edited Dhakshin Ram CC BY-SA 4.0
added 2 characters in body
Jun 29 at 18:58 history removed from network questions andselisk
Jun 29 at 13:47 history edited Dhakshin Ram CC BY-SA 4.0
added 23 characters in body
Jun 29 at 13:31 history edited Dhakshin Ram CC BY-SA 4.0
deleted 5 characters in body
Jun 29 at 4:23 history edited Dhakshin Ram CC BY-SA 4.0
added 25 characters in body
Jun 29 at 0:55 history edited Dhakshin Ram CC BY-SA 4.0
deleted 3 characters in body
Jun 28 at 16:42 history edited Dhakshin Ram CC BY-SA 4.0
deleted 2 characters in body
Jun 28 at 15:46 answer added Jason Goemaat timeline score: 1
Jun 28 at 15:18 history edited Dhakshin Ram CC BY-SA 4.0
added 132 characters in body
Jun 28 at 11:43 history edited Dhakshin Ram CC BY-SA 4.0
added 20 characters in body
Jun 28 at 11:24 history edited Mithoron CC BY-SA 4.0
deleted 332 characters in body; edited tags; added 32 characters in body
Jun 28 at 11:13 history edited Dhakshin Ram CC BY-SA 4.0
added 9 characters in body
Jun 28 at 7:53 history edited Dhakshin Ram CC BY-SA 4.0
added 45 characters in body
Jun 28 at 7:48 vote accept Dhakshin Ram
Jun 30 at 9:17
Jun 28 at 1:01 answer added ACR timeline score: -2
Jun 27 at 23:59 history edited Dhakshin Ram CC BY-SA 4.0
added 13 characters in body
Jun 27 at 21:56 history became hot network question
Jun 27 at 16:10 answer added Oscar Lanzi timeline score: 7
Jun 27 at 15:44 history edited Dhakshin Ram CC BY-SA 4.0
deleted 3 characters in body
Jun 27 at 15:28 comment added Ed V You can see the Balmer series lines in my answer here: physics.stackexchange.com/a/768678/313612. As per the wikipedia linked article, the other series beyond the range of typical human vision. They are readily detected by appropriate instrumentation.
Jun 27 at 14:58 answer added Ronith timeline score: 8
Jun 27 at 14:08 comment added Jon Custer See en.wikipedia.org/wiki/Hydrogen_spectral_series - the Lyman series are all in the UV, the Paschen series are all in the IR. Only the Balmer series has lines in the human-visible wavelength region.
Jun 27 at 14:03 comment added Jon Custer Because our eyes only see a limited range of energies. Using other instruments many other hydrogen lines are used in astronomy.
Jun 27 at 13:56 history asked Dhakshin Ram CC BY-SA 4.0