The UMARK webpage


Dear Visitor,

the documents on this website are maintained by:

Udo Mark
E-mail:  admin at umark.de


At present time, the documents are covering two aspects:

The high-precision astronomical clock MAXCLOCK

The technically-oriented spreadsheet software TWTAB (in German)



Thankyou for visiting this website !






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© 2025 Udo Mark



www.umark.de/index.html    last revised: 2025-08-30