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External links found that need fixing (Oktober 2023)

Hello fellow editors,

I have found one or more external links on Laju cahaya that are in need of attention. Please take a moment to review the links I found and correct them on the article if necessary. I found the following problems:

• http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/measure_c.html is found to be dead. Recommend adding https://web.archive.org/web/20150821181850/http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/measure_c.html to the original URL.
• http://physics.nist.gov/cgi-bin/cuu/Value?c is found to be dead. Recommend adding https://web.archive.org/web/20170625090639/http://physics.nist.gov/cgi-bin/cuu/Value?c to the original URL.
• http://www.fourmilab.ch/etexts/einstein/specrel/www/ is found to be dead. Recommend adding https://web.archive.org/web/20130114170140/http://www.fourmilab.ch/etexts/einstein/specrel/www/ to the original URL.
• http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html is found to be dead. Recommend adding https://web.archive.org/web/20130501002220/http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html to the original URL.
• http://latimesblogs.latimes.com/technology/2011/07/time-travel-impossible.html is found to be dead. Recommend adding https://web.archive.org/web/20220423131148/https://latimesblogs.latimes.com/technology/2011/07/time-travel-impossible.html to the original URL.
• http://www.ust.hk/eng/news/press_20110719-893.html is found to be dead. Recommend adding https://web.archive.org/web/20110919010800/http://www.ust.hk/eng/news/press_20110719-893.html to the original URL.
• http://galileo.phys.virginia.edu/classes/252/SpecRelNotes.pdf is found to be dead. Recommend adding https://web.archive.org/web/20131101061331/http://galileo.phys.virginia.edu/classes/252/SpecRelNotes.pdf to the original URL.
• http://www.nytimes.com/2007/06/20/opinion/20wertheim.html?_r=1&scp=1&sq=%27the%20shadow%20goes%27&st=cse&oref=slogin is found to be dead. Recommend adding https://web.archive.org/web/20130510204837/http://www.nytimes.com/2007/06/20/opinion/20wertheim.html?_r=1&scp=1&sq=%27the%20shadow%20goes%27&st=cse&oref=slogin to the original URL.
• http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/Superluminal/superluminal.html is found to be dead. Recommend adding https://web.archive.org/web/20100416062744/http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/Superluminal/superluminal.html to the original URL.
• http://refractiveindex.info/?group=LIQUIDS&material=Water is found to be dead. Recommend adding https://web.archive.org/web/20100325142042/http://refractiveindex.info/?group=LIQUIDS&material=Water to the original URL.
• http://refractiveindex.info/?group=GLASSES&material=F_SILICA is found to be dead. Recommend adding https://web.archive.org/web/20100412083942/http://refractiveindex.info/?group=GLASSES&material=F_SILICA to the original URL.
• http://refractiveindex.info/?group=CRYSTALS&material=C is found to be dead. Recommend adding https://web.archive.org/web/20100503214108/http://refractiveindex.info/?group=CRYSTALS&material=C to the original URL.
• http://www.news.harvard.edu/gazette/2001/01.24/01-stoplight.html is found to be dead. Recommend adding https://web.archive.org/web/20111028041346/http://www.news.harvard.edu/gazette/2001/01.24/01-stoplight.html to the original URL.
• http://www.nature.com/nature/journal/v397/n6720/pdf/397594a0.pdf is found to be dead. Recommend adding https://web.archive.org/web/20121102184650/http://www.nature.com/nature/journal/v397/n6720/pdf/397594a0.pdf to the original URL.
• http://www.nature.com/nature/journal/v409/n6819/pdf/409490a0.pdf is found to be dead. Recommend adding https://web.archive.org/web/20160413091316/http://www.nature.com/nature/journal/v409/n6819/pdf/409490a0.pdf to the original URL.
• http://news.bbc.co.uk/2/hi/science/nature/841690.stm is found to be dead. Recommend adding https://web.archive.org/web/20090221100829/http://news.bbc.co.uk/2/hi/science/nature/841690.stm to the original URL.
• http://ufn.ru/ru/articles/1967/10/n/ is found to be dead. Recommend adding https://web.archive.org/web/20150516060551/http://ufn.ru/ru/articles/1967/10/n/ to the original URL.
• http://hubblesite.org/newscenter/archive/releases/2010/02/full/ is found to be dead. Recommend adding https://web.archive.org/web/20150725045315/http://hubblesite.org/newscenter/archive/releases/2010/02/full/ to the original URL.
• http://www.nasa.gov/pdf/283957main_Hubble_Deep_Field_Lithograph.pdf is found to be dead. Recommend adding https://web.archive.org/web/20100218093415/http://www.nasa.gov/pdf/283957main_Hubble_Deep_Field_Lithograph.pdf to the original URL.
• http://www.iau.org/public/measuring/ is found to be dead. Recommend adding https://web.archive.org/web/20130605024231/http://www.iau.org/public/measuring/ to the original URL.
• http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html is found to be dead. Recommend adding https://web.archive.org/web/20140129215200/http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html to the original URL.
• http://www.ft.com/cms/s/2/2bf37898-b775-11e2-841e-00144feabdc0.html is found to be dead. Recommend adding https://web.archive.org/web/20150527150054/http://www.ft.com/cms/s/2/2bf37898-b775-11e2-841e-00144feabdc0.html to the original URL.
• http://www-obs.univ-lyon1.fr/labo/fc/ama09/pages_jdsc/pages/jdsc_1676_lumiere.pdf is found to be dead. Recommend adding https://web.archive.org/web/20110721024302/http://www-obs.univ-lyon1.fr/labo/fc/ama09/pages_jdsc/pages/jdsc_1676_lumiere.pdf to the original URL.
• http://gallica.bnf.fr/ark:/12148/bpt6k55840n.image.f375.langEN is found to be dead. Recommend adding https://web.archive.org/web/20160215190238/http://gallica.bnf.fr/ark:/12148/bpt6k55840n.image.f375.langEN to the original URL.
• http://www.bipm.org/utils/common/pdf/si_supplement_2014.pdf is found to be dead. Recommend adding https://web.archive.org/web/20171010170335/http://www.bipm.org/utils/common/pdf/si_supplement_2014.pdf to the original URL.
• https://www.iau.org/static/resolutions/IAU2012_English.pdf is found to be dead. Recommend adding https://web.archive.org/web/20220106060831/https://www.iau.org/static/resolutions/IAU2012_English.pdf to the original URL.
• http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/measure_c.html is found to be dead. Recommend adding https://web.archive.org/web/20150821181850/http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/measure_c.html to the original URL.
• http://galileoandeinstein.physics.virginia.edu/lectures/spedlite.html is found to be dead. Recommend adding https://web.archive.org/web/20150817112030/http://galileoandeinstein.physics.virginia.edu/lectures/spedlite.html to the original URL.
• http://www.physics.umd.edu/icpe/newsletters/n34/marshmal.htm is found to be dead. Recommend adding https://web.archive.org/web/20100217001922/http://www.physics.umd.edu/icpe/newsletters/n34/marshmal.htm to the original URL.
• http://www.bbc.co.uk/norfolk/features/ba_festival/bafestival_speedoflight_experiment_feature.shtml is found to be dead. Recommend adding https://web.archive.org/web/20070823134759/http://www.bbc.co.uk/norfolk/features/ba_festival/bafestival_speedoflight_experiment_feature.shtml to the original URL.
• http://pec.sagepub.com/content/38/8/1251.full.pdf is considered to be dead, however has been found to be alive. Recommend removing the dead flag from the URL.
• http://brunelleschi.imss.fi.it/cimentosite/indice.asp?xmlFile=Indice00.xml is found to be dead. Recommend adding https://web.archive.org/web/20160604044700/http://brunelleschi.imss.fi.it/cimentosite/indice.asp?xmlFile=Indice00.xml to the original URL.
• http://sas.uwaterloo.ca/~rwoldfor/papers/sci-method/paperrev/ is found to be dead. Recommend adding https://web.archive.org/web/20091216073518/http://www.stats.uwaterloo.ca/~rwoldfor/papers/sci-method/paperrev/ to the original URL.
• http://www-history.mcs.st-andrews.ac.uk/Biographies/Al-Haytham.html is found to be dead. Recommend adding https://web.archive.org/web/20090419131556/http://www-history.mcs.st-andrews.ac.uk/Biographies/Al-Haytham.html to the original URL.
• http://www-history.mcs.st-andrews.ac.uk/Biographies/Al-Biruni.html is found to be dead. Recommend adding https://web.archive.org/web/20160529144024/http://www-history.mcs.st-andrews.ac.uk/Biographies/Al-Biruni.html to the original URL.
• http://oll.libertyfund.org/index.php?option=com_staticxt&staticfile=show.php%3Ftitle=753&layout=html is found to be dead. Recommend adding https://web.archive.org/web/20140203072607/http://oll.libertyfund.org/index.php?option=com_staticxt&staticfile=show.php%3Ftitle=753&layout=html to the original URL.
• http://gallica.bnf.fr/ark:/12148/bpt6k3362k.image.f235.vignettesnaviguer is found to be dead. Recommend adding https://web.archive.org/web/20160215192340/http://gallica.bnf.fr/ark:/12148/bpt6k3362k.image.f235.vignettesnaviguer to the original URL.
• http://gallica.bnf.fr/ark:/12148/bpt6k15187j/f549.item.r= is found to be dead. Recommend adding https://web.archive.org/web/20230506135945/https://gallica.bnf.fr/ark:/12148/bpt6k15187j/f549.item.r= to the original URL.
• http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Maxwell.html is considered to be dead, however has been found to be alive. Recommend removing the dead flag from the URL.
• http://www.bipm.org/en/CGPM/db/11/6/ is found to be dead. Recommend adding https://web.archive.org/web/20110110130145/http://www.bipm.org/en/CGPM/db/11/6/ to the original URL.
• http://www.bipm.org/en/CGPM/db/15/2/ is found to be dead. Recommend adding https://web.archive.org/web/20081007073948/http://www.bipm.org/en/CGPM/db/15/2/ to the original URL.
• http://www.bipm.org/en/CGPM/db/17/1/ is found to be dead. Recommend adding https://web.archive.org/web/20130626130314/http://www1.bipm.org/en/CGPM/db/17/1/ to the original URL.
• http://www.nist.gov/pml/div683/upload/museum-timeline.pdf is found to be dead. Recommend adding https://web.archive.org/web/20111019062943/http://nist.gov/pml/div683/upload/museum-timeline.pdf to the original URL.
• https://www.sciencenews.org/article/units-measure-are-getting-fundamental-upgrade is found to be dead. Recommend adding https://web.archive.org/web/20220206103439/https://www.sciencenews.org/article/units-measure-are-getting-fundamental-upgrade to the original URL.
• http://scitation.aip.org/content/aapt/journal/tpt/55/1/10.1119/1.4972491 is found to be dead. Recommend adding https://web.archive.org/web/20230925015417/https://pubs.aip.org/aapt/pte/article-abstract/55/1/16/618986/An-Introduction-to-the-New-SI?redirectedFrom=fulltext to the original URL.
• https://www.nist.gov/si-redefinition is found to be dead. Recommend adding https://web.archive.org/web/20220206103441/https://www.nist.gov/si-redefinition to the original URL.
• http://dbhs.wvusd.k12.ca.us/webdocs/Chem-History/Roemer-1677/Roemer-1677.html is considered to be dead, however has been found to be alive. Recommend removing the dead flag from the URL.
• http://dbhs.wvusd.k12.ca.us/webdocs/Chem-History/Roemer-1677/Roemer-1677.html is considered to be dead, however has been found to be alive. Recommend removing the dead flag from the URL.
• http://www.gutenberg.org/ebooks/11753 is found to be dead. Recommend adding https://web.archive.org/web/20150709073018/http://www.gutenberg.org/ebooks/11753 to the original URL.

When you have finished making the appropriate changes, please visit this simple FaQ for additional information to fix any issues with the URLs mentioned above.

This notice will only be made once for these URLs.

Cheers.—InternetArchiveBot (Melaporkan kesalahan) 5 Oktober 2023 06.04 (UTC)

External links found that need fixing (April 2024)

Hello fellow editors,

I have found one or more external links on Laju cahaya that are in need of attention. Please take a moment to review the links I found and correct them on the article if necessary. I found the following problems:

• http://history.nasa.gov/ap08fj/15day4_orbits789.htm is considered to be dead, however has been found to be alive. Recommend removing the dead flag from the URL.

When you have finished making the appropriate changes, please visit this simple FaQ for additional information to fix any issues with the URLs mentioned above.

This notice will only be made once for these URLs.

Cheers.—InternetArchiveBot (Melaporkan kesalahan) 5 April 2024 22.40 (UTC)

External links found that need fixing (Agustus 2024)

Hello fellow editors,

I have found one or more external links on Laju cahaya that are in need of attention. Please take a moment to review the links I found and correct them on the article if necessary. I found the following problems:

• http://nvl.nist.gov/pub/nistpubs/sp958-lide/191-193.pdf is considered to be dead, however has been found to be alive. Recommend removing the dead flag from the URL.

When you have finished making the appropriate changes, please visit this simple FaQ for additional information to fix any issues with the URLs mentioned above.

This notice will only be made once for these URLs.

Cheers.—InternetArchiveBot (Melaporkan kesalahan) 25 Agustus 2024 00.10 (UTC)