Dave Brill <[email protected]> wrote: >Some more information about the similar Norishige Terada and Hisashi Abe 60 degree units from bronze rectangles.
Thanks. That was very helpful. So if I understand correctly the Terada unit goes back to at least 1980? I am wondering if the Abe unit came later and was a simplification of the Terada unit or was contemporaneous? Any further information greatly appreciated! Dave
