Post
by indigolemon » Fri Jul 05, 2013 2:21 pm
Powdered wisdom teeth would likely be a good abrasive ...
'On two occasions I have been asked, 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.' - Charles Babbage