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In what year did McDonald's introduce the Speedee Service System, an early foundation of its brand?
Answer
1948
Which McDonald's symbol inspired the nickname “Golden Arches”?
Answer
The yellow restaurant arches
What low-friction machine component did Leonardo da Vinci sketch using small rolling spheres?
Answer
Ball bearing
What powered boat did Leonardo da Vinci design with paddle wheels turned by people inside the vessel?
Answer
Paddle-wheel boat
What textile machine did Leonardo da Vinci design to automate parts of silk production?
Answer
Silk-reeling machine
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Which McDonald's symbol inspired the nickname “Golden Arches”?
Answer
The yellow restaurant arches
What textile machine did Leonardo da Vinci design to automate parts of silk production?
Answer
Silk-reeling machine
What carriage did Leonardo da Vinci design to move itself using a wound spring mechanism?
Answer
Self-propelled cart