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Comment: Redneck has a great idea. You can search for "biochar" and there are tons of how-to's …
Comment: It would be super awesome to have an augmented reality heads-up-display (HUD) that allo…
Comment: For disinfecting, you could use a solution of hydrogen peroxide (H2O2), check around th…
Comment: Would it be possible to use activated carbon granules (i.e. aquarium filter carbon)? I…