olden days                     roger luebeck   minnesota

Favorite Musical Film Clips   (1936 - 1964)

Hermit Thrush in Minnesota

Lake Calhoun Days

Our Family Website

more links lower on page

Color photographs are from 2017 - 2019

Engineers' Creed of 1954

Relativity Trail, the book (free pdf)

Relativity in absolute terms


RogCAD Girder and Panel building set

Chaos etc - equations and graphical output

more olden days  (back page)