16 votes
Accepted

Does nearly half the world's population live on less than $2 a day?

The 'keyword' to look for is 'PPP' for Purchasing Power Parity. This is a way of translating incomes across the world into a common (generally dollar) currency taking into account the difference in ...
Benjol's user avatar
  • 1,185
11 votes
Accepted

Is measuring the size of a nuclear cloud with your thumb an approximate indication of whether you're in the radiation zone?

Nuclear weapons can kill through several mechanisms Blast Effects Most damage comes from the explosive blast. The shock wave of air radiates outward, producing sudden changes in air pressure that can ...
PhillS's user avatar
  • 3,043
10 votes

Should you get out of your car in a tornado?

An F2 tornado can flip and tumble lighter cars, which might be less comfortable than lying flat in a ditch where the wind can't get under you. Certainly in this case: Better options than ditches, ...
Cees Timmerman's user avatar
5 votes

Is it possible to survive landing in water when free-falling?

It's possible to survive a free fall in water from extreme heights, but it's an extremely rare event, so the conditions for survival are not known. Snyder (1965) mentions two cases of survival ...
the gods from engineering's user avatar
5 votes

Have people survived landing in trees when free-falling?

Juliane Koepcke survived a fall into the rainforest, which definitely did not have any snow. Juliane Diller (born 10 October 1954 in Lima as Juliane Margaret Koepcke) is a German-Peruvian ...
BobTheAverage's user avatar
4 votes
Accepted

Indonesian adrift surviver water situation

There's not a lot of information out there (and what we do have is all news quality so I'm not inclined to completely trust it), but what we do have suggests that he didn't start drinking saltwater ...
Laurel's user avatar
  • 31.6k
2 votes

Have people survived landing in swamps when free-falling?

Maybe. Free-falling in a swamp and on his instructor saved one client (David Meek) in a tandem jump, but the instructor (Jim Horak) died... although not right away. It took hours for them to be found ...
the gods from engineering's user avatar

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