Redigerer Torsjonsvekt (avsnitt)

==Bibliografi==
* {{Citation|last=Cavendish|first=H.|date=1798|chapter=Experiments to determine the Density of the Earth|editor-surname=MacKenzie|editor-first=A.S.|publication-date=1900|title=[http://books.google.com/books?id=O58mAAAAMAAJ Scientific Memoirs, Vol.9: The Laws of Gravitation]|publisher=American Book Co.|pages=59–105}}
*{{Citation|last1=McCormmach|first1=R.|last2=Jungnickel|first2=C.|title=Cavendish|date=1996|publisher=American Philosophical Society|url=http://books.google.com/books?id=EUoLAAAAIAAJ|isbn=0-87169-220-1|pages=p.335–344}}
* {{Citation|last=Gray|first=Andrew|title=The Theory and Practice of Absolute Measurements in Electricity and Magnetism, Vol.1|date=1888|publisher=McMillan|url=http://www.engineersedge.com/spring_torsion_calc.htm|pages=p.254–260}}.  Detailed account of Coulomb's experiment.
* {{Citation|title=Charles Augustin de Coulomb biography, Chemistry Dept. |publisher=Hebrew Univ. of Jerusalem |url=http://www.geocities.com/bioelectrochemistry/coulomb.htm |accessdate=August 2, 2007 |archiveurl=https://web.archive.org/web/20030624143012/http://www.geocities.com/bioelectrochemistry/coulomb.htm |archivedate=juni 24, 2003 |url-status=dead }}.  Shows pictures of the Coulomb torsion balance, and describes Coulomb's contributions to torsion technology. 
* {{Citation|last1=Nichols|first1=E.F.|last2=Hull|first2=G.F|title=The Pressure due to Radiation|date=June 1903|journal=The Astrophysical Journal|volume=17|issue=5|pages=315–351|url=http://books.google.com/books?id=8n8OAAAAIAAJ&pg=RA5-PA315|doi=10.1086/141035}}.  Describes the Nichols radiometer.
* {{Citation|url=http://www.mssu.edu/seg-vm/pict0349.html|title=Torsion balance, Virtual Geoscience Center|publisher=Society of Exploration Geophysicists|accessdate=2007-08-04|url-status=dead|archiveurl=https://web.archive.org/web/20070818100645/http://www.mssu.edu/seg-vm/pict0349.html|archivedate=2007-08-18|tittel=Arkivert kopi|besøksdato=2007-08-18|arkivurl=https://web.archive.org/web/20070818100645/http://www.mssu.edu/seg-vm/pict0349.html|arkivdato=2007-08-18|url-status=død}} {{Wayback|url=http://www.mssu.edu/seg-vm/pict0349.html |date=20070818100645 }}.  Description of how torsion balances were used in petroleum prospecting, with pictures of a 1902 instrument.
* {{Citation|title=Charles Augustin de Coulomb|encyclopedia=Encyclopaedia Britannica, 9th Ed.|page=452|date=1907|publisher=Werner Co.|volume=6|url=http://books.google.com/books?id=IAwEAAAAYAAJ&pg=PA452}}