density

Do heavy radioactive particles from Fukushima that have contaminated US water, milk, etc sink to the bottom of a liquid, and if they are down to single atoms would they still sink? Then I could avoid drinking them.

It's quite a read. Let's cut to the chase at the end of chapter 3: To produce an effective buoyancy force on dinosaurs the Earth's atmosphere would have to be thick enough to have a density comparable to the density of water. By summing the forces acting on a typical dinosaur such as a...

We've all seen the myriad assertions by people like our friend BS5678, that the concrete in the WTC towers was "pulverized" or "disintegrated". BS has on occassion mentioned that 99% of the concrete was pulverized. I've been thinking for a while now that some simple calculations might put the...

Is there a way to calculate the mean distance between points as the density of the points is changed. I need to work out what the increase in mileage driven by our field workforce would be if the jobs were done over 6 days instead of 5.