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Name/Description Type Size Uploaded By Uploaded On


On a method of expressing by signs the action of machinery. by Charles Babbage, Esq. F.R.S. January 17, 1826

Adobe Acrobat file 3.8M Kevin J. Jun 12, 2012


"The Sources of the Nile" by Charles T Beke PhD, 1860

Adobe Acrobat file 6.7M Kevin J. Aug 25, 2012

2016 Catharsis Catapult Competition Guidelines

Catapult guidelines

Adobe Acrobat file 66K Mike J. Jul 7, 2016

2016 Catharsis Catapult Competition FAQ

Catapult faq

Adobe Acrobat file 55K Mike J. Jul 7, 2016


How to tie a bow tie :)

an image 65K Peter J. Feb 5, 2013

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