The sun. [volume] (New York [N.Y.]) 1833-1916, 1902-02-23
SCIENCE.
TEMPERATURES OF THE SUN AND pL,s,r


According to NJ. Ekholm the ,h,.,u,.
zero Of temperature t-2s7' c. Should ~
reached In our atmosphere at a hei,t, "
$4,000 metres. According TO Stefan. "
the temperatures OF the planets are lnvs,,al,
proportional 10 the square root n Their An.
tances from the sun. II the suns TENNIS.
ture f. 5000 then the Temperatures ,rs
theoretically as follows:
HsIsvry'-'...'.ti sc. Jupiter .,."".- 60
Ens,.h,......,. tSsss. Sr r ,"""",-lG,0
As +e5 Is entirely inadmisslhle for ,ns
mean terrestrial temperature IL Is obyinn.
that steian's law 10 not applicable. Cbhs
Hansen finds:
Msrcury~.""..+7io. c Jupiter ........-ln,c
MGrs.".'""..- So c Neptune ...-ss,SS
And L. Ragovsky:
s,aca in;::.+ 'i:+oC %: 6 6 MH SII;,:;i:""":"1 s;sCS
xenus'''""' RS. Saturn""."" +s25'0
Es1,s +ssSS:ee S S%sSpl = ...." I'D
The enormous. differences in the tempera.
ture OF the sun In various researches IS The
seS"if o. iS our ' SSoSy Of s OF the a real iSEs that
The solar temperature has been assigned
Newton..o"..l .ees, 800. C Wolfe. ....... i.Sco'o
Eriesson.....2,'2 ZOO G Lsngley""...s.s3s op' .
fikeau ..... 100 e Ebert.".... OoO'c
HUhey's''''ss H. wv I fAScnen...... 1900 o
The. subject Is yet very far from solution.
The figures Of Ragovsky are, for reasons
that cannot be. given here. not improba bic,
HIS paper can be found in the AsirophLsicdi
Journal.
A~CEIYLENK.
When acetylene ia burned 10 a burner with
nne holes in It the orifces are bla ckened and
filed up with an annular deposit of carbon
which increases ill the holes are stopped
and the burner made useless. This phe-
nomenon of the decomposition OF acetylens
during combustion has been the great obsta-
Gle in the employment of the gas CONNER
chilly. and IL has never been studied scientific
sought empirically by a. diluting the
acetylene with an inert gas IN special air
mixture burner; or by r. purifying
NJ, Fernand Gaud his experimental on the
problem, using chemically pure Scstylens
aud then using the gas purposely made i'm:
pure by mixing 1t with known amounts OF
other Ingredients.
He has demonstrated that. while under
burner IL transferred 10 tho gas and favor,
Its decomposition into It's constituents. n
l. certain that the presence Of sulphurettsd
Client to excite the decompo 'ition referred 70
from the moment fame is produced. His
work Il published by the Paris Academy
OF Sciences
DISTANCE OF IT NEW STAR IN pKBsEus.
The recent changes In the nebula surround
Ing the new star In Perseus and the measure
nents made upon the moving portions OF this
nebulosity give a basis for calculations OF this
distance. dimensions and brllliancy ofthe star
system. The conclusions are, In brief, that
the distance OF the new star Ia such. that IL!
light would require about two hundred and
fifty years to reach the earth, The phe-
nomrna that we have witnessed took place
about two hundred and fifty years ago. then.
and were contemporaneous with oliver
CTOm nTOtaCfDTgtR- III OUT own sun
were TO be removed 10 tho distance OF ths
new star IL would shine az q star Of the tenth
In a telescope having an object glass about
three inches In diameter. When the new
about 10. 900 times mG as Bright or as our own sun.
The theory upon which these results are
based is given In Nature for Jan. 20.
EFFECT OF HIou ATTITUDES ON ruB BLOOD.
NJ. Gaule has communicated to the Paris
OF Sciences the results Of his er-
periments on the blood corpusclee at high
Viaux and other Observers noticed
a great Increase In the number Of the red
corpuscles OF the blood. In the Cordilleras.
AZ an altitude Of 1000 metres. yiaux found
5000. 900 such corpuscles TO the cubic MILL
metre. VI. Gaule. In n balloon ascension.
found the same number ts,ooOOpOl OF cor
puscles at heights between 1000 and 5000
NM. Tissot and HaIllon communicated
Istry OF respiration a, attitudes ysryine be-
tween 1850 and 4,45o metres. II appears
that the chemical phenome9a did not greatly
tory rhythm was, however, much modified.
Although the total Quantity OF air. entering
the lungs was less at high alt the rate Of
respiration was not senslblely Increased.
II thus appears that az high attitudes. the air
is purer and Is also more completely useo
than az lower.
STONE BRIDoEs.
A list OF stone arches Of more than ~ metres
span Is given by NJ. Dutreux in Gtnis Grid
FOR Jan. IS. 1902. The greatest span Is tho
Trezzo bridge. built over tho AIDA by thu
Duke Of Milan. Barnabo Nisconti. IN the
years 1907. The span was 72t metres,
and the bridge was destroyed by war In i4le.
No other bridge exceeds 20 metres. eVcep.
one Just completed at Luxembourg. Cabin
John Bridge near Washington 1850 has =
span Of OIL metress a lev Eu11ope1m hrgass,
Chester. England, IL nearly 81 metres span,
The new Luxembourg Bridge has q central
arch tGs VIII a span az OF metres S , 'h@ The bridge IS
10 metros wide and presents several inier-
est!ng features In IFS construction.
HELAIEsr AIRsHrP.
NJ Santos-Dunout has lately been enter
tanned by the Aero Club Of London. He then
his programme for the season OF
1902. He is now building his seventh AR
shin. which is 10 be fitted with two petroleum.
of IS II 2 edch-9O IL p. for both.
This Il d great advance in horse power over
HE sixth air ship which was driyen by a motor
of III Il. I. Tho new balloon IS TO be trlp'e--
the two inner cases are TO be enclosed "
exterior. There Is 20 be no m
tsIior framework a. he s. 20 trust 10 Interior
pressure TO keep the material Isid ga"
Dumont is of the opinion that acroplanes
should not be used IN connection with uir-
PRICES ~ LoSpoN y PARIS
In a paper on the food Of workmen in Lon
don and In Paris the following prices Of food
are quoted Ia francs uhe frame being about
London P71f
Drr. prfre