Is there an invention on which ALL other inventions are based - a kind of UR-invention? Yes, it exists - and you have it at home!
This invention made our modern world possible!
Invented 2000 years ago, by slaves in ancient Rome. Mandatory in the Christian church (because of sex!). Made popular by the French king Louis XIV. The strongest engine in the world is made of it. Strictly forbidden in a space station. Perfect for flirting. Very important at Christmas, and for NASA.
This thing is no longer needed today - but is sold as much as never before. What could that be?
The show is available in different versions from 20 minutes to the big evening gala. The most popular version lasts 100 minutes. For organizers: You can watch a short version of 18 minutes as a film - write to me!