In reply to Jones Beene's message of Wed, 29 Dec 2021 02:16:22 +0000 (UTC): Hi, [snip] > Here's one to look at >https://en.wikipedia.org/wiki/Optical_telegraph > Actually I considered a mirror system, but it wouldn't work on cloudy days. Regards,
Robin van Spaandonk <mixent...@aussiebroadband.com.au>
