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Written by Ian Poole .
Experienced electronics engineer and author.

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29 March 2026

Fact of the day: On this day in 1974 Mariner 10, launched by NASA became the first spacecraft to fly past Mercury, having been launched on 3rd November 1973.

Quote: I have not failed. I\'ve just found 10,000 ways that won\'t work. Thomas Edison

Point to ponder: Russia\'s Sakhalin offshore well reaches depths of up to 12,700 meters - in comparison , Mount Everest is 8,648 meters tall.

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