Google Doodle Christoffer Polhem's 350th Birthday

Google Doodle Christoffer Polhem's 350th Birthday


Title: Christoffer Polhem's 350th Birthday

Date: Dec 18, 2011

Location: Sweden

Tags: blueprint, wheel, mining, Birthday, gears, inventions, Technology, Black and White

History:
Labels: , , , , , , , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)