Bob Blakely wrote: > > Really?!! And which Greek letter would that be? It is a drunken theta. Fallen over onto it's side. Theta is pronounced like "TH" as is "thick headed" or perhaps "Insulting" from someone with a lithp. > > I don't have the answer either, but it's not a Greek letter. Actually, I > believe it's a ring, on edge, twisted. The loop is endless. The would make it the sign for Greg Fraser then, wooden tit? > > Regards, > Bob... back at ya, Blob > > From: "ADavidhazy" <ANDPPH@ritvax.isc.rit.edu> > > > AndrewF posed: > > "You've all seen the flat eight on your lens - know who 'invented' it?" > > > > I have seen it but do not know who decided that it would be the infinity > > sign in optics. It is a Greek letter so maybe there is a good story to go > > along with this! It would be a great question for an exam if it had a good > > answer.
