If you want to build your own vacuum tubes, whether amplifying, Nixie or cathode-ray, you’re going to need a vacuum. It’s in the name, after all. For a few thousand bucks, you can proba… ...

It's time for the final DIY project in the kitchen – making clear glass look like antique mirror or mercury glass.

A finished mercury-in-glass thermometer requires at least 25 intricate steps including blending the mercury bulb, crafting the neck of the tube and narrowing the throat.