I didn't check the calculation, but I guess it assumes perfect conversion of motion to heat. But it's good to know that if you can get a perfectly static chicken, you can hypersonic-slap it cooked.
You mean like official EU data? https://ec.europa.eu/eurostat/databrowser/view/demo_r_d3dens/default/map?lang=en And "go see in person" is a very bad advice to anything data-related in most cases. Compating population density anywhere in Europe with Netherlands isn't fair. Poland, Hungary and Romania (and north Balkan as well, it seems) have denser population than rural France, for example. Spain is less densely populated, but still has about as many tennis courts, so it must have much more per capita. It just isn't a population density map. It is another Iron curtain division map, but even so, Czechia and Slovakia stand out as exceptions. There is interesting information in there.
Are we looking at the same pictures? Spain is less dense, but Poland seems mostly denser than rural France and Balkan roughly the same.
Is it, though? Is Spain, Poland and Balkan so much less populated than Germany or France?
Cool. At a glance, oldest are horse riders and sometimes shooters, youngest skateboarders and some swimmers.
Do they actually work? I don't have actual experience, but I heard that they are only used by people who might benefit from them and thus the authors are automatically suspicious to the reviewer, plus you almost always cite your previous papers in a pretty obvious way, so it's hardly blind anyway.
I relatively often meet 4 of these:
no speed limit (use the normal limit for this type of road)
car tires may defy laws of nature (slippery road, usually followed by a sign saying it applies during rain)
speed camera ahead
no water polluting goods (not very common, but occasionally comes up. There is also no dangerous materials with an orange trapezoid instead of an ellipse)
I also saw don't drive off the pier (around ferries), watch for skiers (in the mountains with cross-country skiing routes), and warning about planes, although in different design (around airports).
@lemming
@sh.itjust.works