The sun. [volume] (New York [N.Y.]) 1833-1916, 1893-10-29

| traordinary oommand OF mechanics es well q
REGsss: 81 l?sis'yss sIyfissr orsa
Introduce. through pipe, llauId nitrous onld,
gas. under . pressure OF about ], 400 pounds Z
p ,Sa. ob thSn sSg t.
this cooler inner chamber I Introduce LIQUID
square nch inner SSa%esr ta
rsaas s sas
G t-22a' FL Running through this inner
chamber 10 tube eSnteeikahing oxygen
oxygen gas. that Is. the point above which
TEN perature OF las G. lie amply sufficient to
iauid under tRis prcsssre lose nine. f
now to, dl%lnlss thst loss. EVER pint q ef' L
man ufactured In all have thus Tar col coil6et H
and used about llfty gallons. and the cost Of
met by subscription. among members OF the
r9yal institntion ana others has nsep about
Of p TIC most Generous coptrput"Ts to- he fund
has been Prof Dowar himself. a large fraction
OF the sum coming put Of bis own pocket.
Of the t meShanicsl and Chemical eS di1ieSi.ies
which beset him in the work. The secret Of
mecSSn fs arrancements combined with the
use OF ethylene. This is a volatile hydro-car-
bon Ard i the chief ii"mi"a,ins ronsI,uen.
With It'll solid 11i carScSic acid. Fsrsdsy was the
ens 20 and Si' ". It By heating sui
phuric acid in a glass ratort, projected
heated by iron eo cove! is s aiOw.d to ' G4p
Of as 9 gas; which is stored after being puri-
the fret with six Inch plunger and six-inch
stroke. and the second a two, inch plunger aud
srsss@re stated It Is nasty stun to n handle
ass; whenever It becomes mixed, 10y leakaae or
otherwise. With nitrous oxide OF air, an eSGlo.
snsss in So course q f. s MSFk xsen /,
mount Of latent heat The failure Of proceed
Ing ATTEMPTS to liquety oxygen Is due to
and e aW that phase
long ago as 1881 Natterer subjected oxygen to
a pre.surss of 800 atmSsphssres; Or over thirty
pTess US" viii affect T it above lis iaueiy
tenn perature at which it Is Iiqueiied the less is
the greater is the amour, Of latent heat which
get as low Zoo e. Which could not do
HavlpE obtained the LIQUID oxygen" he
&C naes. turning to the long table below the
1STtns With
loss by evaporation. After various trials and
Ok periments. we devised set Of vacuum yes
LIQUID oxygen. Sealed at the I neck In seconi
tube or bottle. from, which the air had been
81 ses ns e nd fss
rlcellian one of driving out the air with mer-
,nary vapor and then conde9sing the vapor:
as sa ths qaid '1 Ssssen s
30 cold that It froze the mercury yapor; and
When BY i It's rseetion still further dinnished
Without more ADO he lifted from a small frame
white glass lar. inside Of which was what
'eemed to be ronnd metallic ball. Open at
With vii I liquid oxygen. and By the IISht which
cached it through the neck Of the bottle it
ys5y ssT GSs Sss wsiS
bubbles. like, q glass OF champagne which has
,scome nearly still
would doubtless have regarded as solemn. To
'ehold. for the first time LIQUID which your
be- Is
lence which does not occur many times in a
After that, sight Of perpetual mo.
aim. To know. furthermore, that this strange
:as; which is the prime agent Of all life; which
1 the entire earth. has been laid captive BY
clence. reduced to- a form which cannot
all |, to to shed food 9, Iisht on any
selling. Af The pale blue LIQUID. which Is
forever. 1t is u great surprise to see the
Inid; which you expect to find under great
re- na ready to hsw ts OF
rotected from heat by a vacuum on one side
nd it's own cold vapor on the other. And SO
lent and gently shake the Bottle. and Sp turn
'om It to its discoyerer with feeling which is
/ its to the proiessor. mi hoW
yer. for he is busy preparing to illustrate
nme 90 OF 1t. propertiesaap interesting intEo,
revail twice as far below the freezing point OF
alter as its boiling point lies above.
He begins by pouring some Of the oxygen
oes so from the freezing OF the moisture in
10 surrounding air, Then he drops into the
horus,, Despite tho flaming energy with
hich these two combine at ordinary tenn
hhratures there j. no action o6n The phos
alter. He takes 1t out and pours In some pure
,st whose freezing point is much beloSw
outer into what you can only call alcohol
=. He takes out the Ice and holds a match
glass dsh the a Gr ee nto
lick. oily LIQUID. which also declines to burn.
few seconds. however. it warns to its or
spherS9IaI state" A drop q water thrown
'cause the evaporation is SO rapid that the
rmlng gas lifts the water and Keeps 1t NOV
g about. Precisely the same thing occurs
hen the oxygen Is dropped on fiat glass Z
sh at the temperature OF the air. which 10 =
g; 1t dances about. shaking and boiling
the Predecessors hand ana he ,dinEs it of t
orse than a burn" he explains. III it b
er touches the skim" Then he drops 9
me Of 1t into water. 1t floats quietly. and as >
hollis off into gas freezes a cup OF water
ound 1t. floating about comfortably in it's q
IN boat Then came curious evidence OF its
agnetic properties. Pouring a little into O q
t cup OF rock salt. he placed the cup between o
= poles OF an electro; IN agnet. the one which II
raday used. The boiling LIQUID. the moment d
at the circuit was complete: flew to tbe two =
z away rapidly on the two points piece +
cotton wool soaked IN the LIQUID was held t
n had been sucked out of 1t; when it hung Il
$ magnetic pronerty. he said, which a
8 magnetic property of iron. 1t Is q nom E.
nductor Of electricity. and spark one. tenth Il
a, millimetre long from u coil machine,
iich would give "A long spark in the air. a a
'pld not pass through the liquid. II gave q p
sh now and then as bubble OF oxygen va | l.