https://mallala.nowandthen.org.au/w/api.php?action=feedcontributions&feedformat=atom&user=Bill Mallala - User contributions [en] 2026-05-01T03:56:44Z User contributions MediaWiki 1.24.2 https://mallala.nowandthen.org.au/w/index.php?title=Talk:Mallala_Institute_Projectors&diff=1009 Talk:Mallala Institute Projectors 2009-09-17T10:21:42Z <p>Bill: </p> <hr /> <div>The light source is an arc between two electrified carbons.</div> Bill