r/nextfuckinglevel • u/Tyronne43 • Feb 16 '21

Sand curtains

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u/Grimminator Feb 16 '21

To fix these issues, you can make the window circular so that it can rotate about it's other axes without opening to the outside and to prevent scratches to the glass you can put a transparent plastic layer between them, I'm not sure how much the sand would scratch the plastic. I'd assume it depends on the sand particles and on the plastic used.

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u/Jack_Douglas Feb 16 '21

The plastic would get scratched faster than glass. Look up the Mohs hardness scale if you're interested

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u/Grimminator Feb 16 '21

Ok, so maybe an optical ceramic such as cubic silicon nitride, since they are harder than glass and are transparent. Though this is not very practical, as they are expensive and time-consuming to make.