The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1897-03-31

The blood from the heart is forced 70 the
gungs. Here II meets the incoming air We
have breathed. the oxygen OF the air
unItes with the carbon in the blood. form
ing that dangerous carbonic acid gas | told
you about. But the oxidation OF this car
bon has produced heat ard the purified
and warm blood goes coursing on its jour
ney.
THE instant this process OF combustion
stops the body dies and that nonsense
that the boy gets of about his dying for
waaT of breath IS only too true and the
body becomes cold"
Papa, what is ozone2"
"Ha. ha, you've walked up. have you?
Ozone r. peculiar form OF oxygen. II Is
a wise provision OF nature that the winter
atmosphere should contain more oxygen
than that OF summer, so that the process
OF combustion may be facilitated and this
ozone generally comes at the same season.
IL is a peculiar element and a much more
active oxidizirg agent than oxygen. II
attacks organic substances. kills the
germs Of some diseases and seems 10 BE-
especially partial 10 the delicate mem
branes lining the throat and nostrils. This
accounts for the fact that You may have
noticed why psrblic speakers and singers
whose vocal organs are not only highly
developed, but highly sensitive. have much
more trouble in cold weather than in
summer"
'Bue. Papa what is it7'
''well. in the opinion OF the best chem
lists an atom OF ordinary oxygen Is com
posed OF two molecules, while an atom OF
ozone Is composed OF three molecules.
There are good easons for this belief
watch are somewhat beyond you Just yet.
but 81 IA a fact that ozone very readily
breaks srp and becomes ordinary oxygen
gas"
What makes the ozone7''
You'll get beyond me In minute. for I
don't really know what produces II in the
winter: electric discharges produce large
quantities OF 1t and when you hear people
say fsrat they smelt birthstone after a
lightning fash, you can ae pretty sure -
was ozone, for II has smell something
like chlorine gas.
Electrical machines produce ozone IN
large quantities. hut II Is not well 10 IN
hale TOO much. as Il should always be welt
diluted
ITO 20 back 10 commissioned ron %
greasy rags or cotton waste be allowed 70
stand, oxidation begins, temperature rises
until suddenly the pile bursts into fame.
This is Spontaneous combustion and hun
dreds OF ares. involving losses Of life and
many thousands ~ dollars worth % prop
erty. have started m this simple way. But
osly waste Is far from being the only sub
stance liable 70 spontaneous combustion.
Fine dry dust OF almost any kind is liahAs
20 exrlode from this same cause and many
a paper mill has gone up from the simple
fact that rafte-s and beams have gradual
" become covered with a fine dry dust or
powder. Frequently -four mills share this
same fate and accun nations o. dry four
or 6u~t have 20 he guarded against most
carefully.
1T is a very simple matter 70 test this
property Of powdered Substances. for. ~
we pour the dry pollen OF a flower over a
fame there II an immediate explosion.
while even iron filings viii burn Ike gun
r.ewaer. Nov. never mind experimenting
with that lamp: wal. urtfl yoa have a ten
a~re loi. then ges right out n the middle
OF It"