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- From: nmehl@ccat.sas.upenn.edu (Nathan J. Mehl)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: PowerBook Track Ball Rubies??
- Message-ID: <921217#119#153201_nmehl@ccat.sas.upenn.edu>
- Date: 17 Dec 92 20:31:19 GMT
- References: <derosa.724610047@mica>
- Sender: news@netnews.upenn.edu
- Reply-To: nmehl@ccat.sas.upenn.edu
- Organization: Nihilists for a Better Tomorrow
- Lines: 25
- Nntp-Posting-Host: ccat.sas.upenn.edu
-
- In article <derosa.724610047@mica> motcid!derosa@uunet.uu.net writes:
-
- >Anyway, I noticed three small white blocks
- >with red dots on them in the track ball
- >housing. It appears that the track ball
- >rests on these small red points. The question
- >is what are they made of so that they are
- >slick enought to allow the ball to rotate
- >and yet not so hard that they scratch the
- >ball and yet hard enought that they don't
- >wear away in a few months of use?
-
- Well, it seems by the title that you figured this one out
- already - ruby! Synthetic, of course, but it was the only
- material that fit the bill.
-
- (This is coming from a non-powerbook-owner and a non-apple-
- employee, so take it for what it's worth, btw. But I do
- recall reading this information somewhere on the net...)
-
- +---------[Nathan J. Mehl]-----------[nmehl@ccat.sas.upenn.edu]--------+
- |"Okay. I'd like My Fair Lady with Arnold Schwarzenegger as Professor |
- | Henry Higgins, Amadeus with Arnold Schwarzenegger as Salieri instead |
- | of F. Murray Abraham, The Diary of Anne Frank...." - Mark Leyner |
- +-------------[I am NOT a Penn student. I only work here.]------------+
-