What event is planned as part of Operation Sail for the United States' 250th anniversary?
Answer
2026 tall-ship gathering
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What event is planned as part of Operation Sail for the United States' 250th anniversary?
Answer
2026 tall-ship gathering
What timing device did Leonardo da Vinci design using water flowing between containers?
Answer
Water clock
What type of cannon did Leonardo da Vinci design with several barrels to fire repeated volleys?
Answer
Multi-barreled cannon
What large siege weapon did Leonardo da Vinci design with a bow spanning about 24 meters?
Answer
Giant crossbow
What type of saw did Leonardo da Vinci design to cut wood using water power?
Answer
Hydraulic saw
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What type of cannon did Leonardo da Vinci design with several barrels to fire repeated volleys?
Answer
Multi-barreled cannon
What type of saw did Leonardo da Vinci design to cut wood using water power?
Answer
Hydraulic saw
What human-sized mechanical figure did Leonardo da Vinci design for a Milanese court entertainment?
Answer
Mechanical knight
Which 2015 crash began with a sharp fall in Chinese shares after the Shanghai Composite had surged?
Answer
2015 Chinese stock-market crash