17 times current level (around 400ppm) would put it at about 6800 ppm
(parts per million). Where in the book you cite is that figure given?
BTW, Dorling Kindersley is a publisher of reference books in several
series (eg Eyewitness Books, DK Guides, etc.) The book cited by you was
edited by J Luhr.
Dunno who that is. I googled her, but find mainly art references, and
nothing, for example, on wikipedia. The report I mentioned, I think I was
the link on either the Guardian, or via slashdot, and if I remember
correctly, it was in something like Nature.
We use "dry ice" a fair bit in theatre, it produces the low lying ground fog
about a foot or two deep..
When we use if, we break blocks of dry ice, about 16" x 8" x 8" inches into
fist sized lumps.
On cue, when the dry ice is needed, it is dumped into a large, like a 45
gallon drum, that has hot water inside. This is what creates the fog, the
hot water. Without hot water the ice will take too long to evaporate and
produce so little gas as to be useless. So, a "dry ice" steam loco will not
work without hot water. Kinda defeats the purpose somehow, doesn't it?
Home of the Great Eastern Railway at:-
Latitude: 48° 25' North
Longitude: 123° 21' West
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