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They could buy wooden ladders, so I don't think that paints the whole picture.
by heartbreak 8y ago
They could buy wooden ladders, so I don't think that paints the whole picture.
- icegreentea2 8y agoArticle says they are one of two wooden manufacturers in California.
- Retric 8y ago> They could buy wooden ladders Can you point me to someplace selling 50' wooden ladders appropriate for firefighting?
- jdietrich 8y agohttp://alacoladder.com/fire-ladders/ http://alacoladder.com/fire-ladders/
- mkhalil 8y agoFor the right money, you can find the right ladder. It's not going to be cheap though, because you have to age the wood. I wonder if there is a way to age the wood to SF humidity/climate faster than real time. Just feels like there has to be.
- garmaine 8y agoPressure? But it’s going to be mighty expensive to build a pressure chamber that big.
- pbhjpbhj 8y agoWhat pressure do they need, a length of pipe might do?
- jaggederest 8y agoNegative pressure might be more useful. Boil out the water under half an atmosphere, and replace the atmosphere with dried nitrogen and a chunk of desiccant. You'll probably damage the wood if you do that though. Now I want to try it in my vacuum chamber, but I'm not sure it'll hold vacuum for weeks/months at a time.
- namibj 8y agoJust use a pipe with conductive plating on the inside and operate it in the 3-digit MHz range as a waveguide. Make sure that the core of the wood has more power than the outside, and that you e.g. move it around lengthwise if you get longitudal resonance in the pipe. Add some desiccant, and make sure the way you couple the energy into the chamber can handle this resonance without frying itself through reflection. Might not need the vacuum, but it should be easy to construct it in a way that it can hold a vacuum of around 10~200 mBar, e.g. with a simple one-stage pump. If you make sure the pump doesn't take in much moisture, there shouldn't be an issue for it.
- toomanybeersies 8y agoYou can use a kiln, which is how most timber is dried these days. If you're feeling bored, the Wikipedia article on wood drying is very comprehensive: https://en.wikipedia.org/wiki/Wood_drying https://en.wikipedia.org/wiki/Wood_drying