Chris+Nancy

... 2025 ...
I want to "down-size" and think about the future of my COLLECTION ...
???
I learned from the TECHNIK-MUSEUM-BERLIN + DEUTSCHES-MUSEUM-MÜNCHEN
that they are "full" - What to do ??? - I would love to transfer my COLLECTION to good hands ...
... PLEASE let me know, if there is an institution out there ...
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<<<====   Explore the  » Pre-Computer-Tech-Museum «   <<<====
It starts with CALCULATORS and continues to ...
... , SLIDE RULES, ... , TYPEWRITERS, ... , TELEPHONES, ...
<<<====<<<====<<<====  Left SideBar  <<<====<<<====<<<====
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======================= HISTORY =======================
In 1997 I had a Research-Semester in Berkeley, California.
There I found two friends, CLIFF STOLL + NANCY ( now my wife ), directing my future:
Cliff infected me with the "VIRUS CALCULATIS" ...
He was known as author of the '90s world bestseller » THE CUCKOO's EGG «
(= Tracking a Spy Through the Maze of Computer Espionage )
In 2005 Cliff decided to write an article for SCIENTIFIC AMERICAN about SLIDE RULES
and asked me and Nancy to design a  PAPER SLIDE RULE  to be included in the article ...
May 2009 a SnapShot of our visit BABBAGE's Difference Engine No.2 ...

... in the COMPUTER HISTORY MUSEUM, MountainView, CA
( www.computerhistory.org )
In 1999 I retired and started the  » Pre-Computer-Tech-Museum «  with
Collecting&Restoring mechanial Calculators on both sides of the globe ...
... Nancy became creator of the beautiful  FUNCTIONAL DIAGRAMS in this HomePage.
Collecting&Restoring also ... , SlideRules, Typewriters, Telephones, ...
the »P-C-T-M« got international attention ...

Part of my Collection was displayed in 2021/22 at the SFO ...
============= !!! CLICK ON THE "active" PICTURES !!! =============
>>   MATHEMATICS:  Vintage and Modern   <<

      ...     <<==   Pythagorean Theorem
www.sfomuseum.org/exhibitions
    31st July '21 ... 1st May '22
San Francisco International Airport,
Terminal 2 / Level 2

... Co-Curator = Cliff Stoll
 
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updated   impressum   03/18/25