button-template.png source=microsoft
measuringTape.gif source=PhET
measuringTape.png source=PhET notes=NP
velocity_left.png author=phet notes=NP
velocity_center.png author=phet notes=NP
velocity_right.png author=phet notes=NP
velocity_point.png author=phet notes=NP
battery.png source=PhET notes=reused from faraday
lightBulbBase.png source=PhET notes=reused from faraday
lightBulbGlass.png source=PhET notes=reused from faraday
lightBulbGlassMask.png source=PhET notes=reused from faraday
lightBulbMask.png source=PhET notes=masked version of lightBulbGlass.png