April 5th, 1928
July 30th, 1905
In the early 1930s Peter Ivanoff started up his plant to research/build a “great invention that would revolutionize the condition of the universe or mankind”. Some fandangled perpetual motion invention. His sketchy solicitation of funds for the project got him in trouble with the local government and it seems he never actually completed his co-motional motion machine.
You can see a few more Now/Then photos and read a little more on Peter Ivanoff on Paul Dorpat’s site.
February 4th, 1946
August 24th, 1950
February 2nd, 1926
"The only puzzle not yet solved in connection with the gyrocopter is that of safe landing." D’oh.
Also see: wiki page for Berliner’s helicopters
May 22nd, 1920
April 2nd, 1942
For some great images of the Televox, an early robot, jump over to cyberneticzoo.com.
October 18th, 1928
March 4th, 1951