You've got to hand it to the Saudis. OK, they don't get everything right. They're fond of the occasional public execution or amputation. There have been reported instances of death by stoning. Not so long ago, they sent troops into Bahrain to support the regime against its own people. Then of course there's the ongoing oppression of women and the persecution of all manner of minorities.
But hey, they make a great drain cover. A country that does that can't be all bad. Maybe they just need more time. . .
This song by Harry Gordon is about 100 years old and is in the Scottish music hall tradition. It's short because it was the lead into a stand-up comedy routine in character. The character in this case being a fireman on the footplate of a steam engine.
The triode was invented in 1906 by Lee De Forest and by around 1920 was refined enough to be commercially viable for widespread distribution. It was the World's first 'Active Device'. It could amplify and oscillate. It (and its derivatives) made possible all of the technologies of modernity – public address, radio, audio/video recording, television, radar, radio telescopy, electron microscopy, computing, the Internet, artificial intelligence. Without active devices, modernity would vanish in a flash. Those who really want to turn the clock back need only abandon science, technology and education. Nature will do the rest.