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Inventions
MASC Academic team
Question | Answer |
---|---|
Who flew the first untethered hot air balloon? Where did they fly it and when did they fly it? | Jean-François Pilâtre de Rozier and François Laurent d'Arlandes on November 21, 1783, in Paris, France, in a balloon created by the Montgolfier brothers |
What do you need to lift an adult man's weight? | a balloon about 4m (13ft) in radius with the air inside heated to a temperature of about 120°C (250°F) |
How do hot air balloons float? | Hot-air balloons float because the air trapped inside the balloon is heated up by a burner, making it less dense than the air outside |
What is a Guillotine? | Guillotine dates back to 1790s in the French Revolution. It was a machine with a heavy blade sliding vertically in grooves. It’s main purpose was beheading |
Who invented the Guillotine? | Its inventor was Dr. Joseph-Ignace Guillotin. He was also a surgeon. He wanted to find a more humane way of execution. |
Why was the Inventor of the Guillotine so proud of it? | Because it didn't discriminate between race, religion, or gender. It killed equally. HOORAY! |