[Leica] Old stuff

[Mark Rabiner]

If Tom Swift didn't have his slide rule ready in his top pocket he'd be dead
in every single of of his 63  books. 33  of the second series written in
the 60's  I read under the covers with a flashlight I made from a bulb, wire
and battery. Now I wear glasses.


On 11/3/15 11:53 AM, "Jim Nichols" <jhnichols at lighttube.net> wrote:

> I can match you with a IIIa, IIIf and both slide rules.  Never used a
> circular rule.
> 
> My 10" rule is a K&E Trig, because the college bookstore was sold out of
> Deci-Trig rules.  My small one is a yellow P&E that served me many
> nights before our wind tunnels got true digital instrumentation.  And
> not a battery to be found in any of them.
> 
> Jim Nichols
> Tullahoma, TN USA
> 
> On 11/3/2015 10:44 AM, Larry Zeitlin via LUG wrote:
>>   The discussion and photos of the Babbage Differential Engine of a couple of
>> weeks ago prompted me to dredge the pictured 50+ year old artifacts from the
>> bottom drawers of my desk. Many more are still interred there. All still work
>> as well as they did when they were new. No batteries are required. Bear in
>> mind that most of the bridges, all of the WW2 airplanes, and all Leica lenses
>> prior to the Summicron were designed using slide rules and mechanical
>> calculators. Will the Leica SL still work in half a century?
>> http://gallery.leica-users.org/v/Larry+Z/Old+stuff.jpg.html
>> Larry Z
>> 
>> 
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>> 
> 
> 
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-- 
Mark William Rabiner
Photographer
http://gallery.leica-users.org/v/lugalrabs/