240
What were people doing before high fives??
(lemmy.world)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 16 Apr 2025
240 points (98.4% liked)
Microblog Memes
7628 readers
1024 users here now
A place to share screenshots of Microblog posts, whether from Mastodon, tumblr, ~~Twitter~~ X, KBin, Threads or elsewhere.
Created as an evolution of White People Twitter and other tweet-capture subreddits.
Rules:
- Please put at least one word relevant to the post in the post title.
- Be nice.
- No advertising, brand promotion or guerilla marketing.
- Posters are encouraged to link to the toot or tweet etc in the description of posts.
Related communities:
founded 2 years ago
MODERATORS
1905 is a milestone of modern physics, because it's when Special Relativity came out.
That's older than the transistor, which was commercialized in 1951. But it's also older than the vacuum tube triode, which was invented in 1906 or 1908.
In 1905, there were no amplifiers of any kind (though there were relay switches). There was almost no radio. The triode was a necessary invention for almost all of analog electronics.
Meh, you could do signal amplification via transformers and tuned resonators.
It sucked, but it was possible.
That's how we had telephones before we had tubes.
That's a cool story, thanks for sharing!
Wtf is a triode?
three electrodes
Like a transistor only larger, less efficient and more fragile.
God damn do I love it when I get to share a relevant Technology Connections video https://youtu.be/0UKCUMghTrc