03:16, 4 April 2007Krausstalkcontribs uploaded File:PerrinPlot2.gif( Dublic domain photo from Perrin's 1909 original article, see also http://www.matpack.de/Info/images/Thermodynamics/PerrinPlot2.gif or J. B. Perrin, "Mouvement brownien et réalité moléculaire," Ann. de Chimie et de Physique (VIII) 18, 5-114 (1909) )
22:49, 20 January 2007Krausstalkcontribs uploaded File:Relogio stDumont.jpg (See also original print at [http://www.sebrae-mg.com.br/minastec/imagens/dummont/grande/relogio_gr.jpg SEBRAE] and a replica at [http://www.watches.co.uk/watch_pics/midpics/ca0086P.jpg Watches.co.uk]. )
12:09, 17 August 2006Krausstalkcontribs uploaded File:State diagram 3 state busy beaver 2B.gif (cut from State_diagram_3_state_busy_beaver_2_.JPG (original drawing by wvbailey in Autosketch) )
19:55, 2 August 2006Krausstalkcontribs uploaded File:UriRef.gif (Source: developed by Peter Krauss (User:Krauss) for Wikipepedia (URI article). ?#! Terceira tentativa, bug on this wikimedia-software!)