author

dthornburg

Inbox
View Profile
LocationIllinoisJoined
Instructables1InstructablesViews29,414ViewsComments3CommentsFollowers38Followers
Inbox
View Profile
I am a life-long tinkerer whose interest in the science, technology, engineering and math (STEM) fields started with the launch of Sputnik in 1957.
dthornburg doesn’t have any published collections yet.