Portal:Technology/DYK/26

• ... 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

1. Wikipedia:Recent additions/2013/May, Numbered archive of Main Page appearance.
2. Wikipedia:Recent additions/2013/April, Numbered archive of Main Page appearance.
3. Wikipedia:Recent additions/2013/March, Numbered archive of Main Page appearance.