User contributions for Johnjbarton
A user with 7,358 edits. Account created on 8 June 2010.
6 June 2024
- 23:1323:13, 6 June 2024 diff hist +58 Rutherford scattering experiments →Stopping distance on direct collision: Try to clarify the diagram. IMO the blue sphere should be omitted, it is shown at an unrealistic scale and plays no part in the formula. current
- 18:3818:38, 6 June 2024 diff hist +18 Galaxy →Early galaxy formation: Reword. Obviously light travels through the un-ionized intergalactic space, otherwise it won't re-ionize the hydrogen there. current
- 18:2718:27, 6 June 2024 diff hist +52 Galaxy →Formation: Replace incorrect claim. The first structures lead to the first galaxies, not "the galaxies we see today". Replace newsy ref with review.
- 18:1518:15, 6 June 2024 diff hist +106 Talk:Rutherford scattering experiments →Rutherford's first scattering experiment: forgot to link edit
- 18:1418:14, 6 June 2024 diff hist +823 Talk:Rutherford scattering experiments →Rutherford's first scattering experiment: new section Tag: New topic
- 17:1317:13, 6 June 2024 diff hist +172 Talk:Rutherford scattering experiments →Direct collision: Reply Tag: Reply
- 17:1117:11, 6 June 2024 diff hist +1,039 Talk:Rutherford scattering experiments →Perrin: Reply Tag: Reply
- 16:3616:36, 6 June 2024 diff hist +221 User talk:David Highfield →May 2024: Reply current Tag: Reply
- 16:2816:28, 6 June 2024 diff hist +643 Wikipedia talk:WikiProject Physics →Academic notability: Reply current Tag: Reply
- 16:1816:18, 6 June 2024 diff hist −65 Wave Undid revision 1227523174 by Noobiemaster299 (talk) Sorry, these details are not appropriate for an article on "wave". current Tag: Undo
- 16:1616:16, 6 June 2024 diff hist −649 Dark matter →Further reading: reformat and remove content that could be in article. current
- 16:0716:07, 6 June 2024 diff hist +686 History of physics →Islamic world: Sources disagree on his family. current Tag: harv-error
- 02:5502:55, 6 June 2024 diff hist +629 Talk:Rutherford scattering experiments →Direct collision: new section Tag: New topic
- 02:3702:37, 6 June 2024 diff hist +110 Talk:Cosmic microwave background →so it can't be distinguished from another 2.725 K blackbody spectrum.: Reply current Tag: Reply
- 02:3002:30, 6 June 2024 diff hist −36 Rutherford scattering experiments →Rutherford determines the nucleus is positively charged: Reword to match ref. Remove one sentence that is not verified in ref.
- 02:2402:24, 6 June 2024 diff hist −3 Rutherford scattering experiments →Bibliography: fix link
- 02:1902:19, 6 June 2024 diff hist +665 Talk:Cosmic microwave background →so it can't be distinguished from another 2.725 K blackbody spectrum.: new section Tag: New topic
- 01:0201:02, 6 June 2024 diff hist +211 File talk:Geiger-Marsden apparatus photo.jpg →Source of this image: Reply current Tag: Reply
- 00:0800:08, 6 June 2024 diff hist −23 Quantum mind →Bohm: remove "formulated" because it makes the sentence sound like Bohm formulated quantum field theory. current
5 June 2024
- 17:1617:16, 5 June 2024 diff hist −23 Scientific theory →top: delete it's safe to say, just say it Tags: Reverted Mobile edit Mobile app edit Android app edit
- 15:2015:20, 5 June 2024 diff hist +242 Talk:Galaxy →Early galaxy formation: Reply current Tag: Reply
- 14:0814:08, 5 June 2024 diff hist +284 Talk:Schrödinger's cat →Proposal for new interpretation: sign per wp:sign
- 14:0514:05, 5 June 2024 diff hist −1 Talk:Schrödinger's cat restore chronological order
- 14:0314:03, 5 June 2024 diff hist +483 Talk:Galaxy →Early galaxy formation: new section Tag: New topic
- 13:4713:47, 5 June 2024 diff hist +285 User talk:Johnjbarton →Apologies: Reply current Tag: Reply
- 03:3603:36, 5 June 2024 diff hist +709 Rutherford scattering experiments →Rutherford's Structure of the Atom paper (1911): Rutherford does not propose the Rutherford model of the atom. +ref.
- 01:5601:56, 5 June 2024 diff hist +86 Rutherford scattering →Intensity vs angle: add diagram of for scattering cross section calculation current
- 01:4501:45, 5 June 2024 diff hist +226 Talk:Rutherford scattering →Page numbers for Rutherford 1911 paper.: new section Tag: New topic
- 01:4401:44, 5 June 2024 diff hist +322 Rutherford scattering →Intensity vs angle: thin foils required.
- 01:2401:24, 5 June 2024 diff hist −4 Rutherford scattering lift two sections in the TOC
- 01:2001:20, 5 June 2024 diff hist +158 Talk:Galaxy →how can be galaxy is flat like a disc?: Reply Tag: Reply
- 01:1901:19, 5 June 2024 diff hist +541 Rutherford scattering →Intensity vs angle: Summarize angular dependence with ref to Karplus and Porter.
- 01:1101:11, 5 June 2024 diff hist +270 Rutherford scattering →Maximum nuclear size estimate: Intro section
- 01:0301:03, 5 June 2024 diff hist +32 Rutherford scattering experiments →Rutherford's Structure of the Atom paper (1911): main wikilink
- 00:5800:58, 5 June 2024 diff hist +19 Supernova →Progenitor: more tweeks to caption
4 June 2024
- 23:5923:59, 4 June 2024 diff hist −930 Rutherford scattering →Extension to situations with relativistic particles and target recoil: Delete unsourced paragraph about things we don't talk about.
- 23:5723:57, 4 June 2024 diff hist +20 Rutherford scattering →Intensity vs angle: encyclopedia
- 23:5223:52, 4 June 2024 diff hist +11 Rutherford scattering →Intensity vs angle: match Goldstein form
- 23:4623:46, 4 June 2024 diff hist −447 Rutherford scattering →Intensity vs angle: Delete unsourced alt forumla
- 23:4523:45, 4 June 2024 diff hist −167 Rutherford scattering →Intensity vs angle: change to match Goldstein ref
- 23:3323:33, 4 June 2024 diff hist +25 Rutherford scattering →Intensity vs angle: reword to match ref
- 23:2923:29, 4 June 2024 diff hist +33 Rutherford scattering →Intensity vs angle: + ref for cross section
- 23:2823:28, 4 June 2024 diff hist +18 Rutherford scattering →Extension to situations with relativistic particles and target recoil: name ref for reuse
- 23:2423:24, 4 June 2024 diff hist 0 Rutherford scattering →Intensity vs angle: b->p to match variables used by Rutherford as discussed in the preceding section.
- 23:2023:20, 4 June 2024 diff hist −3,722 User:Johnjbarton/sandbox →Single scattering from heavy nuclei: delete content moved in to main space current
- 23:1523:15, 4 June 2024 diff hist +23 Rutherford scattering add {{notelist}}
- 23:1323:13, 4 June 2024 diff hist +732 Rutherford scattering →Derivation: Delete unsource derivation. Add Rutherford's single scattering formula; content copied from User:Johnjbarton/sandbox
- 23:0723:07, 4 June 2024 diff hist +26 Rutherford scattering →Maximum nuclear size estimate: clarify r_min = b
- 19:2719:27, 4 June 2024 diff hist 0 User:Johnjbarton/sandbox →Single scattering from heavy nuclei: fix formula
- 19:2419:24, 4 June 2024 diff hist +1,040 User:Johnjbarton/sandbox →Rutherford scattering: begin probability of scattering.