Three rounds of trivia about relativity, air conditioning, and Mario, plus a bonus question. Each round has eight questions, and the answers are provided at the end of each round. Test your knowledge during your commute or coffee break, or play with a friend.

(00:32) Round 1. Relativity

(07:27) Round 2. Air Conditioning

(13:07) Round 3. Mario

(19:00) Bonus Question

Looking for another round about physics? Check out 4. 2010s Non-Fiction / Orbits / Carpentry

Looking for another round to keep cool? Check out 9. Arctic & Antarctic / City Transportation / 2025 TV Shows

Looking for another round about video games? Check out 17. Cellular Biology / Banking / Pokemon