A&A Equipment:Black Hole: Revision history

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21 December 2020

27 August 2009

27 March 2008

  • curprev 01:2501:25, 27 March 2008Jsuhoski talk contribs 1,491 bytes +1,491 New page: '''Black Holes''' '''''Description'''''. A piece of black velvet about 7 inches in diameter. When placed upon an upright smooth flat surface it become a 7 foot diameter black circle. ...