Useless machines are a lot of fun, if not just a little overdone. Looking for a new twist, [bd594] decided to try making one that integrates a candle — it works quite well! While not quite as ...

To me, what separates a good product from a great one is not just that I use it frequently, but that its functions are both multipurpose and notably effect my sense of wellbeing. The Zenergy candle by ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Useless machines are a lot of fun, if not just a little overdone. Looking for a new twist, [bd594] decided to try making one that integrates a candle — it works quite well! While not quite as ...