Special! Science Contests
- Episode aired Nov 3, 1993
![Alan Alda in Scientific American Frontiers (1990)](https://m.media-amazon.com/images/M/MV5BMTk3NzQ2NTcyM15BMl5BanBnXkFtZTgwNTcyNDkwMzE@._V1_QL75_UY281_CR93,0,190,281_.jpg)
Sunrayce 93 - Solar powered auto race; Machines that Think - Turing Test; Ping Pong delivery Madness; Underwater Power Play human powered submarinesSunrayce 93 - Solar powered auto race; Machines that Think - Turing Test; Ping Pong delivery Madness; Underwater Power Play human powered submarinesSunrayce 93 - Solar powered auto race; Machines that Think - Turing Test; Ping Pong delivery Madness; Underwater Power Play human powered submarines