whats up comes down ... https://www.nasa.gov/feature/auroral-sounding-rocket-to-display-artificial-clouds-in-space
*Aluminum oxide* is the most used man-made abrasive because it has no free silica, which is what *cuts your lungs*. The *aluminum oxide* in floors is in the coating. ... And breathing fumes from solvents and sanding dust would increase the exposure through the lungs as well, and increase the toxic effects.
wikipedia: *Trimethylaluminium *(aluminium oxides) https://en.wikipedia.org/wiki/Trimethylaluminium -- Rebellion against the norms is Love for the Creation skype: fidibee homepage: www.fidibus.info --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
