Technology
Web resources
Strictly Oompah: The Sousaphone\'s direct ancestors ★
1909 Wagner Tourist \| Mecum Las Vegas 2015 \| S111 (wayback) ★
IBM Selectric typewriter - Wikipedia, the free encyclopedia
Behold Friedrich Nietzsche's Curious Typewriter, the \"Malling-Hansen Writing Ball\" \| Open Culture ★
How the Soviets invented the internet and why it didn\'t work \| Aeon Essays ★
Inside the 1953 Westwern Electric Phone ★
The Virtual Museum of Music Inventions - Homemade PVC Trombone, "BoJoe" (wayback, no image) ★
natural resources - Imagining a Solar-Powered Economy - Worldbuilding Stack Exchange ★