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I wanted a nice bioethanol fireplace for the balcony or terrace. But it had to be a nice fire tornado. Of course I built it myself. But what physics is behind such a fire tornado? Of course I looked into that too. I'll just say angular momentum, Bernoulli and co. But don't worry, the theory isn't that dry. This is what I used: Casting compound: https://amzn.to/3pgrgQ6 *Glass tube: https://amzn.to/3VF6A0e *Metal band saw: https://amzn.to/42zjdft * Welding machine: https://amzn.to/3phOWni * Welding helmet: https://amzn.to/3VH5Kjx * 3D printer: https://amzn.to/42bLoBH * PLA filament: https://amzn.to/3VF52TX * Cordless screwdriver: https://amzn.to/2IM6sY8 * Screwdriver set: https://amzn.to/39r70zf * Allen key set: https://amzn.to/2D1DGTS * Hammer set: https://amzn.to/39r77e9 * Adhesive tape for CNC clamping: https://amzn.to/49dajaO * Here are the individual chapters: 0:00 What am I doing in this video? 0:34 How is a fire tornado created? 6:18 Construction 10:41 Building a silicone mold 12:31 Casting ceramic 15:05 Milling an aluminum version 17:18 Tornado is great :-) The links marked with * are affiliate links. The products do not cost you any more if you buy them via the links, but you are supporting my channel - thank you very much! For correspondence: Nicos Projects PO Box 1107 D-72189 Vöhringen Germany