olden days                     roger luebeck   minnesota

Favorite Musical Film Clips   (1936 - 1964)

Uncle Wiggily, Uncle Remus, Donald Duck

Hermit Thrush in Minnesota

Lake Calhoun Days

Our Family Website

Our 2019 Hiking Trip

video:  On bike at 65.5 years old

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

Climate, geology, molten salt nuclear reactors


more olden days  (back page)