Category: Other

A common experience for school-age children who teaches about electricity, stress, and energy is the "energized potato lamp" scenario. Using a normal potato and some metal elements, a low voltage bulb...

Do you know when it is time to change tubular fluorescent lamps and how to change them? When the bulb starts flashing or when it ends turn black, it is time...

A few days ago I visited an antique market and I brought a metal grinder to restore it. The mill was quite rusty so, after looking for different solutions to...