The number of meteorites impacting the earth daily is in the hundreds if not thousands. Most of them are so small that they bun up in the upper atmosphere. On average 2 every day are big enough to make it through the atmosphere and reach earth. If the comet was fragmented into tiny pieces it would not matter.

A mass spectrometer will give you the exact alloy composition of your car's cylinder or gearbox. If someone does this and makes the information publicly available then you don't even have to do it yourself.

Slackware was always famous for slow release cycles and stability as well. As for 64bit distros it is still hard to find a real use for them. At least in my environment.

SLS was not arround that long and it was rather buggy. Actualy both Debian and Slackware got born because their creators got fedup with SLS.

Correct. MCC Interim Linux was the first linux distro.