OfCourseNot

So did I, but that was like thirty years ago.

Except the history channel, that ain't a valid place to learn history.

Ok I think I see what you're doing, but it's still wrong tho. Going, kind of, that way would be:

volume of water = total_volume (silver_mass - slurry_mass) / (silver_mass - water_mass); where silver mass and water mass are the masses of the total volume if it were only that substance alone, ie (volume * density).

With this method you can use the volume of a block of silver instead of powder, which would be more exact as there's air within powdered silver–you can add a bit of water to powdered silver before the volume start to rise–, and also the total volume and mass of the content of the beaker without taking out the water on top.

Sorry if it's not very clear, I'm finishing my lunch break, I can explain/elaborate when I get home.

Btw I've checked my math: 844.4 g silver + 619.6 g water = 1464 g total; 844.4 g silver/ 10.5 gr/cm3 = 80.4 ml silver; 80.4 ml silver + 619.6 ml water = 700 ml total.

1800g (dry silver) - 1214g (silver slurry) = 516g (516ml water in slurry)

What? Why? I'm kind of sure that this is wrong (subtracting (water + silver) from silver can't get you water, you could get (silver - water) at best) but I'm interested in the reasoning here because it short circuit my brain.

Alright so you did put the signs the other way around!! No lol I think the post says the pedestrian pictogram that then is represented in many signs (ay least here) not just to the crosswalk one in particular, so I thought it applied here. My memory is very fuzzy but this could be an underpass that happened to have toilets as well.

844.4 grams of silver.

I was coming back to say that. I've been in Warsaw, and in the back of my head I had the thought that this would have struck me as weird so I would've noticed. So I went through the few pictures and videos I took and saw this:

It seems that vinegar may work.

Uhm... Poland... that... those signs were for the toilets mates. I mean, fair mistake, but what did you put on the restroom doors then?

Edit: they're not like that.

You're not far off. We don't call it 'federal government' but in practice it's exactly that, in the same line that we call the prime minister 'presidente'.

Completely agree. Also, I'm a Spaniard and kind of a 'screw expert' and have heard the sentence in the post like twice in my life so not that common of a mnemonic. I usually say something like 'clockwise because time's tight' ('en el sentido de las agujas del reloj porque el tiempo aprieta').