- ... that while serving as the first Chair of the School of Aeronautics at the Georgia Institute of Technology (pictured), Montgomery Knight developed one of the first jet-powered helicopter rotors?
- ... that the BIL gates technology recently entered into the public domain?
- ... that the National Polytechnical Museum in Sofia holds the only Bulgarian-manufactured Hammond organ?
Source
edit- Wikipedia:Recent additions/2013/May, Numbered archive of Main Page appearance.
- Wikipedia:Recent additions/2013/April, Numbered archive of Main Page appearance.
- Wikipedia:Recent additions/2013/March, Numbered archive of Main Page appearance.