'This 13th century English philosopher can "bring home" the credit for an ornithopter, a flying machine'
Roger Bacon
ROYs & ROGERs: This 13th century English philosopher can bring home the credit for an ornithopter, a flying machine
This 13th century English philosopher can "bring home" the credit for an ornithopter, a flying machine
This 13th century English philosopher can "bring home" the credit for an ornithopter, a flying machine
ROYs & ROGERs
Roger Bacon
ROYs & ROGERs