Galileo se eksperiment met die Skewe Toring van Pisa: Verskil tussen weergawes

In 1589-92<ref>Some contemporary sources speculate about the exact date; e.g. Rachel Hilliam gives 1591 (''Galileo Galilei: Father of Modern Science'', The Rosen Publishing Group, 2005, p. 101).</ref> het die Italiaanse wetenskaplike [[Galileo Galilei]] (toe professor van wiskunde by die Universiteit van Pisa), volgens 'n biografie deur Galileo se leerling Vincenzo Viviani, wat hy in 1654 saamgestel en in 1717 gepubliseer het, twee sfere met verskillende [[Massa|massas]] uit die [[Skewe Toring van Pisa]] laat val om te wys dat die tyd wat hulle neem om te val, onafhanklik is van hulle massa.<ref>[//en.wikipedia.org/wiki/Vincenzo_Viviani Vincenzo Viviani] (1717), ''Racconto istorico della vita di Galileo Galilei'', p. 606: [...dimostrando ciò con replicate esperienze, fatte dall'altezza del Campanile di Pisa con l'intervento delli altri lettori e filosofi e di tutta la scolaresca... [...Galileo showedhet thisdit gewys [allalle bodiesliggaame, whateverongeag theirdie weightsgewig, fallval withmet equalgelyke speedssnelheid] bydeur repeatedherhaalde experimentseksperimente madevan fromdie thehoogte heightvan ofdie thetoring Leaning Tower ofvan Pisa in thedie teenwoordigheid presencevan ofdie otherander professorsprofessore anden allal thedie studentsstudente...].</ref><ref name="Drake">{{Cite book|last=Drake|first=Stillman|date=2003|title=Galileo at Work: His Scientific Biography|edition=Facsim.|publisher=Dover publ.|location=Mineola (N.Y.)|isbn=9780486495422}}</ref>{{rp|19&ndash;21}}<ref>{{Webaanhaling|url=http://www.hindu.com/seta/2005/06/30/stories/2005063000351500.htm}}</ref><ref>[http://brunelleschi.imss.fi.it/itineraries/biography/VincenzoViviani.html Vincenzo Viviani] on museo galileo</ref>