https://www.explainxkcd.com/wiki/index.php?action=history&feed=atom&title=Talk%3A3053%3A_KM3NeTTalk:3053: KM3NeT - Revision history2026-05-23T07:02:47ZRevision history for this page on the wikiMediaWiki 1.30.0https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=367135&oldid=prev162.158.245.161: Added some info on KM3NeT's background rejection algorithm2025-02-27T13:14:17Z<p>Added some info on KM3NeT's background rejection algorithm</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::You can't 'see' the cone, in the way the diagram indicates, but you could infer it from your exacting recordings of when the cone/piled-up-wavefront crosses your various detectors. And it is unlikely that a set of flashes happened, from separate but linearly-aligned sources, that happened to so similarly coincide into an identically constructive "shockwave of light"/'photonic boom'...</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::You can't 'see' the cone, in the way the diagram indicates, but you could infer it from your exacting recordings of when the cone/piled-up-wavefront crosses your various detectors. And it is unlikely that a set of flashes happened, from separate but linearly-aligned sources, that happened to so similarly coincide into an identically constructive "shockwave of light"/'photonic boom'...</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::PS, you (and others, if interested) might like to use the ready-templated form of wikipedia linking that we have here, <code><nowiki>{{w|Cerenkov radiation}}</nowiki></code>, saving the effort of the 'full link'. Just paste any wiki page's major header in after the "w|". With, whenever necessary, the option of adding another "|" and text you want to appear ''instead'' of the straight page-title. (It has a flexibility regarding initial capitalisation, and adding a plural 's', or similar trivial suffix, ''after'' the {{}} shortcuts the need to do <code><nowiki>{{w|Singular|plural}}</nowiki></code> in most cases, and similar tricks. See how {{template|w}} is used in pretty much any Explanation source, and you might pick up more of the useful subtleties.) [[Special:Contributions/172.70.160.216|172.70.160.216]] 22:28, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>::PS, you (and others, if interested) might like to use the ready-templated form of wikipedia linking that we have here, <code><nowiki>{{w|Cerenkov radiation}}</nowiki></code>, saving the effort of the 'full link'. Just paste any wiki page's major header in after the "w|". With, whenever necessary, the option of adding another "|" and text you want to appear ''instead'' of the straight page-title. (It has a flexibility regarding initial capitalisation, and adding a plural 's', or similar trivial suffix, ''after'' the {{}} shortcuts the need to do <code><nowiki>{{w|Singular|plural}}</nowiki></code> in most cases, and similar tricks. See how {{template|w}} is used in pretty much any Explanation source, and you might pick up more of the useful subtleties.) [[Special:Contributions/172.70.160.216|172.70.160.216]] 22:28, 21 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">:The other answers have some good general explanations. The actual way that it's done on-the-ground (in-the-sea?) at KM3NeT is mostly based on time correlation of the signals from different parts of the detector. If a true particle track is detected, it should look like a very brief, almost-simultaneous spike seen by a significant number of detector elements ({{w|Photomultiplier tube|PMTs}}). The duration of this spike, and the time difference between the spikes seen by different detector parts, is on the order of nanoseconds. In contrast, a bioluminescence event takes place on the order of miliseconds (~6 orders of magnitude longer!), so it's very easy to tell one from the other. Another factor is that, for an event to be really interesting, it needs to hit multiple parts of the detector (that are physically far from each other) almost at the same time - a bioluminescence event usually doesn't reach that far. A more significant source of background is the decay of radioactive elements in the water, but the light flashes from this also don't reach far enough to be a problem, and can actually be really useful for detector calibration. I worked on KM3NeT as a student intern many years ago, and I'm so excited to finally see them in the news again![[Special:Contributions/162.158.245.161|162.158.245.161]] 13:14, 27 February 2025 (UTC)</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>: you may find it was added by a bot. [[Special:Contributions/162.158.39.130|162.158.39.130]] 11:59, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>: you may find it was added by a bot. [[Special:Contributions/162.158.39.130|162.158.39.130]] 11:59, 21 February 2025 (UTC)</div></td></tr>
</table>162.158.245.161https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366283&oldid=prev172.70.160.216 at 22:28, 21 February 20252025-02-21T22:28:13Z<p></p>
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</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9" >Line 9:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:They just discount anything that looks a bit fishy.[[Special:Contributions/172.71.178.78|172.71.178.78]] 09:31, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:They just discount anything that looks a bit fishy.[[Special:Contributions/172.71.178.78|172.71.178.78]] 09:31, 21 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:[https://en.wikipedia.org/wiki/Cerenkov_Radiation Cerenkov radiation], at any time, looks like a giant cone with the tip at the position of the generating particle. So I assume they can track the progress of the detections with time and dismiss anything that's not compatible with that geometry and time dependency. [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:34, 21 February 2025 (UTC)  </div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:[https://en.wikipedia.org/wiki/Cerenkov_Radiation Cerenkov radiation], at any time, looks like a giant cone with the tip at the position of the generating particle. So I assume they can track the progress of the detections with time and dismiss anything that's not compatible with that geometry and time dependency. [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:34, 21 February 2025 (UTC)  </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">::You can't 'see' the cone, in the way the diagram indicates, but you could infer it from your exacting recordings of when the cone/piled-up-wavefront crosses your various detectors. And it is unlikely that a set of flashes happened, from separate but linearly-aligned sources, that happened to so similarly coincide into an identically constructive "shockwave of light"/'photonic boom'...</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">::PS, you (and others, if interested) might like to use the ready-templated form of wikipedia linking that we have here, <code><nowiki>{{w|Cerenkov radiation}}</nowiki></code>, saving the effort of the 'full link'. Just paste any wiki page's major header in after the "w|". With, whenever necessary, the option of adding another "|" and text you want to appear ''instead'' of the straight page-title. (It has a flexibility regarding initial capitalisation, and adding a plural 's', or similar trivial suffix, ''after'' the {{}} shortcuts the need to do <code><nowiki>{{w|Singular|plural}}</nowiki></code> in most cases, and similar tricks. See how {{template|w}} is used in pretty much any Explanation source, and you might pick up more of the useful subtleties.) [[Special:Contributions/172.70.160.216|172.70.160.216]] 22:28, 21 February 2025 (UTC)</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td></tr>
</table>172.70.160.216https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366186&oldid=prev172.69.43.253 at 16:54, 21 February 20252025-02-21T16:54:35Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>:Looking at the revision history, it appears there's a glitch in the matrix. The incomplete tag was removed, nobody reinstated it, but then several edits later it [https://www.explainxkcd.com/wiki/index.php?title=3053:_KM3NeT&diff=prev&oldid=366169 reappears] in the pre-edit version.[[Special:Contributions/141.101.99.69|141.101.99.69]] 16:50, 21 February 2025 (UTC)</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>:Looking at the revision history, it appears there's a glitch in the matrix. The incomplete tag was <ins class="diffchange diffchange-inline">[https://www.explainxkcd.com/wiki/index.php?title=3053:_KM3NeT&diff=prev&oldid=366153 </ins>removed<ins class="diffchange diffchange-inline">]</ins>, nobody reinstated it, but then several edits later it [https://www.explainxkcd.com/wiki/index.php?title=3053:_KM3NeT&diff=prev&oldid=366169 reappears] in the pre-edit version.[[Special:Contributions/141.101.99.69|141.101.99.69]] 16:50, 21 February 2025 (UTC)</div></td></tr>
</table>172.69.43.253https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366185&oldid=prev172.68.186.40 at 16:52, 21 February 20252025-02-21T16:52:53Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>:Looking at the revision history, it appears there's a glitch in the matrix. The incomplete tag was removed, nobody reinstated it, but then several edits later it reappears in the pre-edit version.[[Special:Contributions/141.101.99.69|141.101.99.69]] 16:50, 21 February 2025 (UTC)</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>:Looking at the revision history, it appears there's a glitch in the matrix. The incomplete tag was removed, nobody reinstated it, but then several edits later it <ins class="diffchange diffchange-inline">[https://www.explainxkcd.com/wiki/index.php?title=3053:_KM3NeT&diff=prev&oldid=366169 </ins>reappears<ins class="diffchange diffchange-inline">] </ins>in the pre-edit version.[[Special:Contributions/141.101.99.69|141.101.99.69]] 16:50, 21 February 2025 (UTC)</div></td></tr>
</table>172.68.186.40https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366183&oldid=prev141.101.99.69 at 16:50, 21 February 20252025-02-21T16:50:49Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">:Looking at the revision history, it appears there's a glitch in the matrix. The incomplete tag was removed, nobody reinstated it, but then several edits later it reappears in the pre-edit version.[[Special:Contributions/141.101.99.69|141.101.99.69]] 16:50, 21 February 2025 (UTC)</ins></div></td></tr>
</table>141.101.99.69https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366176&oldid=prevNomentz: added wikipedia link for cerenkov radiation2025-02-21T15:34:10Z<p>added wikipedia link for cerenkov radiation</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:As it depends upon a 'track' of light, you can work out how likely it is that a set of bioluminescent fish happened to spontaneously 'flash' (in a line, in sequence and at a superluminal velocity for the medium) that coincidentally looks like the non-fish detection signature that they're looking for. (That and/or other factors, looking for particular wavelengths, without known bioluminescent sources, etc.) [[Special:Contributions/172.69.195.229|172.69.195.229]] 20:54, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:As it depends upon a 'track' of light, you can work out how likely it is that a set of bioluminescent fish happened to spontaneously 'flash' (in a line, in sequence and at a superluminal velocity for the medium) that coincidentally looks like the non-fish detection signature that they're looking for. (That and/or other factors, looking for particular wavelengths, without known bioluminescent sources, etc.) [[Special:Contributions/172.69.195.229|172.69.195.229]] 20:54, 20 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:They just discount anything that looks a bit fishy.[[Special:Contributions/172.71.178.78|172.71.178.78]] 09:31, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>:They just discount anything that looks a bit fishy.[[Special:Contributions/172.71.178.78|172.71.178.78]] 09:31, 21 February 2025 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">:[https://en.wikipedia.org/wiki/Cerenkov_Radiation Cerenkov radiation], at any time, looks like a giant cone with the tip at the position of the generating particle. So I assume they can track the progress of the detections with time and dismiss anything that's not compatible with that geometry and time dependency. [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:34, 21 February 2025 (UTC) </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td></tr>
</table>Nomentzhttps://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366175&oldid=prevNomentz: title text exp incomplete?2025-02-21T15:25:13Z<p>title text exp incomplete?</p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">I don't think that the explanation of the title text is incomplete (but I'm a Physicist with a diploma); which part do you want to be explained further? [[User:Nomentz|Nomentz]] ([[User talk:Nomentz|talk]]) 15:25, 21 February 2025 (UTC)</ins></div></td></tr>
</table>Nomentzhttps://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366172&oldid=prev162.158.39.130 at 11:59, 21 February 20252025-02-21T11:59:00Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>: you may find it was added by a <del class="diffchange diffchange-inline">bit</del>. [[Special:Contributions/162.158.39.130|162.158.39.130]] 11:<del class="diffchange diffchange-inline">58</del>, 21 February 2025 (UTC)</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>: you may find it was added by a <ins class="diffchange diffchange-inline">bot</ins>. [[Special:Contributions/162.158.39.130|162.158.39.130]] 11:<ins class="diffchange diffchange-inline">59</ins>, 21 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I feel that Randall missed a chance at a "Cherenkov Angle" pun in the title text [[Special:Contributions/172.70.134.237|172.70.134.237]] 23:40, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I feel that Randall missed a chance at a "Cherenkov Angle" pun in the title text [[Special:Contributions/172.70.134.237|172.70.134.237]] 23:40, 20 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</div></td></tr>
</table>162.158.39.130https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366171&oldid=prev162.158.39.130 at 11:58, 21 February 20252025-02-21T11:58:15Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Please,[citation needed] for "undersea life does not move at the speed of light"? It's mildly humorous, but in contrast to the mission of this site to EXPLAIN xkcd and just sheer ignorance, we do not need a cite for any life, undersea or not, travelling at less than the speed of light! [[User:Cuvtixo|Cuvtixo]] ([[User talk:Cuvtixo|talk]]) 21:27, 20 February 2025 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">: you may find it was added by a bit. [[Special:Contributions/162.158.39.130|162.158.39.130]] 11:58, 21 February 2025 (UTC)</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I feel that Randall missed a chance at a "Cherenkov Angle" pun in the title text [[Special:Contributions/172.70.134.237|172.70.134.237]] 23:40, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I feel that Randall missed a chance at a "Cherenkov Angle" pun in the title text [[Special:Contributions/172.70.134.237|172.70.134.237]] 23:40, 20 February 2025 (UTC)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</div></td></tr>
</table>162.158.39.130https://www.explainxkcd.com/wiki/index.php?title=Talk:3053:_KM3NeT&diff=366170&oldid=prev162.158.168.161 at 11:55, 21 February 20252025-02-21T11:55:09Z<p></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 11:55, 21 February 2025</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I feel that Randall missed a chance at a "Cherenkov Angle" pun in the title text [[Special:Contributions/172.70.134.237|172.70.134.237]] 23:40, 20 February 2025 (UTC)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>I feel that Randall missed a chance at a "Cherenkov Angle" pun in the title text [[Special:Contributions/172.70.134.237|172.70.134.237]] 23:40, 20 February 2025 (UTC)</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Woah!  Was that a Dad Joke? [[Special:Contributions/162.158.168.161|162.158.168.161]] 11:55, 21 February 2025 (UTC)</ins></div></td></tr>
</table>162.158.168.161