Nik_2213's latest activity
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Nik_2213 replied to the thread Insights Thinking Outside The Box Versus Knowing What’s In The Box.Sometimes, you can turn box about to access via open side no-one else noticed... -
Nik_2213 reacted to Swamp Thing's post in the thread High School Ram pump -- is water compressibility really relevant? with
Like.
I may not have worded my question in the best way. Steve Mould's explanation is based on the idea that you can't make complete sense of... -
Nik_2213 reacted to Ken Fabian's post in the thread High School Ram pump -- is water compressibility really relevant? with
Informative.
I built and used one for a time - a variant that included a pressure vessel packed with closed cell rubber rather than just an air... -
Nik_2213 replied to the thread Does molten magnesium react with silica?.My thanks to 'HC' who sent me a summary of Magnesium fire-fighting. This is a non-trivial task. Once Mg gets going, it will take...
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Nik_2213 replied to the thread Torque to turn a large Beam on a Rotisserie."...by wrapping the hoist chain around the column" IIRC, the process is 'To Parbuckle', and done by lumber-haulers. Take care !!
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Nik_2213 replied to the thread Does molten magnesium react with silica?.Again, thank you !! Being able to cry, 'Oh ? Ooh, Shiny !!', rip up and re-write a sub-plot is one advantage of keeping a hefty...
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Nik_2213 reacted to Baluncore's post in the thread Does molten magnesium react with silica? with Informative.
You can glaze the magnesium object, but only if it first has a surface covering of MgO, to isolate the Mg metal from the surface glass.
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Nik_2213 replied to the thread Does molten magnesium react with silica?.Again, thank you. So, rather than coat the magnesium with silica glass, Plan_B is a TBA polymer...
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Nik_2213 reacted to Baluncore's post in the thread Does molten magnesium react with silica? with
Love.
No. Magnesium metal is highly reactive. Molten magnesium metal will react with silica to produce silicon metal and the ceramic magnesia... -
Nik_2213 replied to the thread Does molten magnesium react with silica?.Thank you. Still world-building with passive atmosphere or vacuum processing... If conditions less extreme than an electric arc-furnace...
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Nik_2213 reacted to Baluncore's post in the thread Does molten magnesium react with silica? with Informative.
Silicon is usually refined by heating quartz sand with carbon, in an electric arc furnace, to remove oxygen. Your question may become...
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Nik_2213 posted the thread Does molten magnesium react with silica? in Materials and Chemical Engineering.World-building: Assume *passive* atmosphere or processing in vacuum... Does molten magnesium react with pure silica, SiO2, as powder or...
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Nik_2213 reacted to Baluncore's post in the thread Need a technical term for part of pressure hatch with Informative.
Hard points are usually tapered, and called Dog Keepers or Dog Catches.
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Nik_2213 posted the thread Need a technical term for part of pressure hatch in Mechanical Engineering.World-building... When a pressure hatch with a central 'wheel' drives its 4/6/8 radial bolts to 'dog' to coaming hard-points, what are...
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Nik_2213 replied to the thread High School Long rod in orbit.If 'rod' is conductive, monthly passage through Earth's geo-tail may influence perturbation...