The sun., 1891-05-17

would seem possible TO apply Il to mechanic,
40 as 70 o.. secure for man with s1esnt eSpeFr
purpose. and SO S he must % % construct % ehario o. q
Soar do Ss WORK. em prS S.b Lsnass e
on on. this s.iS spbS;ect are, shared & by the fore.
fes ssmseVet n ssS nSES SrSneS
of research to which. great deal Of at
tsntlon ten, do Is being paid at present Their
ing bird must be the model for the success
ful fying contrivanco OF the future. The In
tstion is no longer relesaied t. crnoIs: In fact
iHS Mr. 9SaEs sais,v q Fr9sdss o. the
absurd conc usions reached by certain French
statement AZ the result OF their caisniatIons
that swallow Ia lying forty miles IN hour
a,, mnst OK exert one.ten,h Of one horse power, an
about forty horse power. TO sappoas that AN
eagle or q, turkey buYSard IL as strong as len
Regarding the rate OF. propuision Of the
future, flying machine. Prof ]. Elfieih Wat.
cares that Il simply depends upon the size OF
fsnsr fans are reyolyed. @ In his opinion The old
demonstrated to BE- nonsense. safieient re-.
s, S soaa no ss too 90
i much 10 suimise that q rronerly consti ucted
az sne chtsso a%S SsR the %bn an
time. Necessarily. however. there would bo u
limit to rapidly OF flight. inasmuch as pro-
Of revolutions per secon,i has been reaohed.
II Il open 70 any ones obssrvation that yes-
rsvoses much faster when The e esa,s ,.en i moyiSe oS
SLOWLY ynl1aI than when % 4 is going going fast
MIR. Hazen 10 the trer ondous revolution which
i and spGs asenss Ss"a IL
hat Unee ssm ssa .xpsnd ssSes ss ss
soon % as possible. would be .f little use against
Ihss hss s9ra aD d3 K.W And
the mercy Of Hostile aerial navEators. a So IN IN
ssher r would have to IS asrse "io Sr
shooting vertically, and the general ,ielondinau
s s oo M %oeys % to
rssstsd rec gn upwsrd 1s one would sh9ot ducks on
future between nations will have to TO fought
out in the air between snuadrons OF flying
aRine. 1t would be considored that the period
hal hal arrived: so long looked for by military
hs Mhsn L be oo ss %
Having achieved the conquest OF tho waters
Il is natural that man should likewise desiie
human race IN. been ambitious to is. The
earliest attempt In this direction recorded by
ss the aSs
rinth for Ninos King Of Crete. wns 80 unior-
tunate "a to offend that monarch. and Ming
masa 81 ssSsSa % rs hs M q w
ancient story is OF Archytas OF Tarentum. who
constructed wooden pigeon that had rower
to ny. 80 nicely was It balanced BY weight and
nut ia motion ny enclosed air. II there is any
truth In the account 1t seems probable that
Archstas was fakir and worked HIS bird with
Rstring: as 10 done on the stage. Tha ancients,
gfI gene, ally speaking made no attempts in !Ie
power Of flight could only appertain to he
most powerful gods. Four centuries ago an
ingenious gentleman named Lauretus Taurus
eggs flllod with quicksilver. when exposed to
the sun. would ascend in the air. but 1t is not
recoi ded that the expe iment was ever sub
jegted satIsiac orly to scientific test In 1870
copper balls. each twenty-five feet In diameter
and only four one.thousandths of an inch In
thickness. from which the air was to be ex-
atIaohed. with q mast and sail. and the cslcn.
Iation WAS that the contrivance would carry
1:2OO rounds. Unfortunately it was discovered
that the ,sS,S eScsssivs ,hinness OF the copper
vacuum was created inside Of them BY the
pressure OF the atmosphere from without
Nevertheless. this suggestion approached
tics than any other offered up 10 the time Of
The invention of the balloon in 1873 by The
brothers MSntgoliler 50 late as l775 Joseph
Gasn DomoiSn fra, and n
sible 10 collect the rareaed air OF some lofty
mountain tor AMI enclose it In a hnge ves-
eel a mile in diameter. which would carry
ark. Funnily, enough. nearly ali. the .arIy
theorists on this subject imagined that the
atmosphere merely covered the earth like
shallow ocean. on which the aerial vessel. they
in the sea, with their upper portions in the
dinuso ether that lay above.