Ctrl + K
Sign in
Create account
Share
Copy link
Facebook
Email
Notes
More
Bill Rudersdorf
@brudersdorf
•
Links
A retired factotum, specializing in the sciences mostly.
6 subscribers
Subscribe
Bill’s Random Walk
By Bill Rudersdorf
Things here and there
Activity
Posts
Likes
Reads (32)
Get app
This site requires JavaScript to run correctly. Please
turn on JavaScript
or unblock scripts