Not just science, factory equipment that needs ancient computers to function too. If you’ve ever wondered why some old PC parts are surprisingly expensive on eBay…
Out of curiosity, I ran through some sample quizzes of the A+ exam a while back. Managed to pass, but I had to dig out a lot of my old knowledge about IDE master/slave setups and COM port settings and the like. That may be partially due to A+ being a silly, meaningless cert, but it’s pretty clear there is a need for that crap still.
You are on the side track in scenario A. You die if you pull. Ironically, you’d be killing yourself. The dice are to make the two scenarios not equally likely.
there’s no way to know which track the trolley is on
It’s a standard trolley meme problem, the trolley will keep going on the main track unless the lever is switched 😁. I thought !science_memes would be familiar with trolley problems, but I guess I get to introduce some of you! You might want to start off on some easier trolley memes first, this is advanced level stuff.
where the real lever sends it
There is not usually ambiguity with the lever. If you wish, you can have an announcement in the headphones “main track… side track…” every time you flip the lever. Your only uncertainty is which track you yourself are bound to, given how you’re blindfolded.
Per Wolfram Alpha, sulfur is 4.62 times heavier; the earth is 0.002% lithium, so it would experience a net gain of 3.62 * mass of earth * 0.00002, or 4.3e20kg. That’s 7.24e-5 times heavier, so not much in the grand scheme of things.
Note that I’m neither a chemist, a physicist, or an astronomer, so I make no guarantee that I did this right.
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