Improvement padlock material?
Hello, I have a school project and we need to specify better materials for a padlock than the usual ones. Does anyone have any ideas?
Where can you have something like this made?
Take a look at this picture: https://i0.wp.com/eolix.fr/wp-content/uploads/2022/07/il_1588xN.3022175257_en4f.webp?resize=1024%2C768&ssl=1 The metal part is made of copper and is coated with 1µm gold. The disc is made of epoxy resin and fiberglass (silicon). Ask: Where can you have something like this made? What technology is used to produce something like this?
Recommendation for replacing a bicycle helmet due to age of the material?
I'm currently researching when you should replace a bicycle helmet that hasn't been involved in an accident. Opinions are somewhat divided on this. However, it seems that there are recommendations to replace helmets every 3 to 5 years. What are your experiences, and how often do you replace your helmets? And do you see a…
Diagon Alley bookend crafting? Diorama model building?
Hi guys, I want to fulfill a long-held dream and make my own Diagon Alley bookend. I've never had anything to do with model building or diorama construction before, haha… but I really want to give it a try. Now for my question. What materials do you think are essential for this? I want to…
Which natural materials in solid form contain the most hydrogen?
Is that wood? Is there dead matter, similar to water, but which exists in solid form?
Is tungsten a metal?
Good morning I heard in a video that tungsten is a non-oxidizing ceramic and isn't supposed to be a metal, but in Wikipedia, for example, it also talks about hard metal. Furthermore, tungsten carbide can also be soldered, and I think I read that it is also used as an alloy, which all speaks against…
Pertinax hard paper: how stiff is it?
Morning I've had a question in my head for a few days. How stiff is a 4 or 5 mm thick Pertinax/hardboard plate? Compared to a 4-5 mm CFRP or 3 mm aluminum plate? The use is quite simple; it should serve as an alternative to an aluminum plate for a Ycarriage of an old…
What materials are used in a residual current device?
My colleague and I have to write a document for school detailing the materials used in an RCD. We haven't made much progress online, though. Maybe one of you has more insight. Thanks in advance.
Is there a material that is 100% recyclable?
Hello, greetings! Don't be too hasty 🙂 Metals, glass and wood are excluded. Has a material been developed that can be recycled without any loss?
Can I pipe salt dough or draw with it? Or is it too thick?
I'd like to find a thick, pasty material that I can use to draw like a pastry chef. I don't know many materials; the only one that comes to mind is salt dough. Maybe epoxy resin, I don't know. I'm grateful for any DIY suggestions.