It is a few inches long, is shaped like a pear and emits a soft glow. It is a lightbulb. But not just any lightbulb. This is the Centennial Bulb, so named in 2001 when it marked its 100th ...
The resulting bulbs have a cheery glow and a rustic look that we really like. Of course, it’s not a huge leap from DIY light bulbs to making your own vacuum tubes. That’s how [Dalibor Farny ...
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