Jim C. spotted this: The BBC bunker they don’t want you to know about.
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Greg W. recommended an article on inclement weather performance of American arms in Korea.
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Reader Rick H. a link to a web page that describes how to make 9 volt DC LED flashlights. Rick added this proviso: “When soldering the LEDs try to use a low wattage soldering iron (30 watts or less) and use a couple of small clip-on heat sinks, alligator clips, or crocodile clips (for our British cousins) to protect them from thermal damage.”