Simple, cheap, realistic and amazing maths and engineering resources. Please ensure you supervise.
different types of fasteners | Visual Glossary Of Screws, Nuts and Washers | DO IT: Projects, Plans ...
TUTORIAL Nuts and Washers: 4 Easy Beaded Beads Made with Peyote Stitch
Project: Heat Your Room with 1 Candle plus Flowerpots, Nuts and Washers | Permaculture Magazine
Calienta tu casa este invierno con una maceta, una vela y menos de 20 céntimos al día
Heat Your Room with 1 Candle plus Flowerpots, Nuts and Washers | Permaculture Magazine
Types of Screws and Bolts [Guide] More
If you want to heat a room with just one candle and save even more money you need to create thermal mass and then radiate it with terracotta pots. It more simple than you could ever imagine.