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  1. Embed this notice
    MarkusL (markusl@fosstodon.org)'s status on Friday, 15-Sep-2023 09:25:40 JST MarkusL MarkusL
    in reply to
    • Today I learned

    @todayilearned Back in the 1970s, I visited a family in Greece. They had a remote control that was attached to the television via a thick black cable. That's the only wired TV remote I've ever seen.

    In conversation Friday, 15-Sep-2023 09:25:40 JST from fosstodon.org permalink
    • Embed this notice
      Today I learned (todayilearned@noc.social)'s status on Friday, 15-Sep-2023 09:25:41 JST Today I learned Today I learned

      TIL: Early wireless TV remote controls (1956), commonly known as "clickers", didn't have batteries or electronics. When you clicked the button, an ultrasonic sound was emitted by the button striking the bar. This sound was picked up by the TV to operate it.

      https://en.wikipedia.org/wiki/Remote_control
      #til #todayilearned
      https://www.reddit.com/r/todayilearned/comments/16iun1c/til_early_wireless_tv_remote_controls_1956/

      In conversation Friday, 15-Sep-2023 09:25:41 JST permalink

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      1. https://noc.social/system/media_attachments/files/111/065/652/597/283/829/original/11d1b3e7e01cc83c.jpg

    • Embed this notice
      MarkusL (markusl@fosstodon.org)'s status on Friday, 15-Sep-2023 09:33:24 JST MarkusL MarkusL
      • Today I learned
      • goatsarah

      @goatsarah

      A big cable running down the middle of your living room where everyone's trying to walk, connected to a big CRT with high-voltage electronics inside: I can't see what could go wrong with that! 😄

      @todayilearned

      In conversation Friday, 15-Sep-2023 09:33:24 JST permalink

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GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.

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