At 19km up

Question

0At 19 km up, if his pressure suit failed, his blood could begin to boil because of the air pressure, according to scientists who have been advising him on his mission. Should his body become exposed, he would lose consciousness and suffer brain damage within minutes. 02br02br00Can I replace "At 19km up" with "Above 19 km"?02br02br00Thanks!0-

Optilang · Accepted Answer

0I think you can - although he may not have to pass 19kms to be in the danger zone! 0-

Avangi · Answer

0Just an aside - The sentence makes it sound as if [increased] air pressure would cause the boiling, rather than the 01b00loss 02b00of air pressure. That is, when we say 01b00pressure02b00 causes something, we usually mean 01b00too much02b00 pressure.02br
02br
00Anyway, if this is your sentence, it's great, but it would be more natural to add "loss of," or "sudden drop in" [pressure].0-

New2grammar · Answer

0Thank you, Avangi. It's an excerpt from a CNN article.0-

Avangi · Answer

0Hi again,02br
02br
00If you're the first person in the diving and sailing stories, you're probably acquainted with nitrogen narcosis, or "rapture of the deep." This is another example of 01i01u00boiling blood02u02i00, but in this case the deep ocean pressure causes nitrogen to become disolved in the blood, and when you rise too rapidly, the 01b00dropping02b00 pressure allows the nitrogen to come back out of solution and form bubbles in the blood.0-

New2grammar · Answer

0Thanks, Avangi. I didn't know boiling water was related to the decompression issue. Very interesting!0-

At 19km up

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