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Re: [Rollei] Obsolete skills (was Why the 6-element lens for 3.5Fs)

At 07:30 PM 5/3/2003 -0400, you wrote:
>In <000401c311be$274752f0$55440a0a@Gostenin>, on 05/03/03
>    at 05:41 PM, "Dan Kalish" <kaliushkin  > said:
> >I was using a slide rule in the 6th grade.  I'm sure Jerry, since he
> >also went to Bronx Science, mastered slide rules.
>Are there more than three of us on this list?

I have a nice wooden Dietzgen mounted in a frame behind glass, with the 
words "Break Glass in case of emergency".

It goes on my office wall, and I still remember how to use it.

The nice thing is that I took Physics and most there problems didn't 
involve addition, just functions and large number multiplication.  I got 
good at tracking the exponent.  As a matter of fact, if you stay within 
Physics, most problems are considered solved if you are within a factor of 
2 or so of the right answer.

It served me all through high school, college, and into engineering until 
the HP 35 came out.

I also have some metal and bamboo ones but they were never as smooth in 

I also have a cylindrical magnifier which clips onto the slider, required 
in those days.

>les clark / edgewater, nj / usa

Don Williams
La Jolla, CA