24,785
reputation
2
3
Mark Olson
I'm a retired chemical physicist-turned software developer and manager and a science fiction and history enthusiast living outside Boston.
1
answer
0
questions
~127
people reached
-
Member for 2 years, 6 months
-
5 profile views
-
Last seen Apr 22 at 14:34
Communities (8)
Top network posts
Badges (5)
Gold
—
Silver
2
Rarest
Bronze
3
Rarest
-
May 2 '18
-
Mar 22 '18
-
May 2 '18
