Fort Worth gazette. [volume] (Fort Worth, Tex.) 1891-1898, 1893-04-20
tatlnr slnele section and mentioning IS

ed: General physics, astronomy, ina'heun-
tics. meteorology geology, seoH5apnS' gi'cl,
scopy. authr0pology, cthnqlogy W gcnelai,l
archaeology. indian cthnOlOgy, AFRICAN Vtu-
uoioey. pvchical science and philosophy.
The meetings Of this section are TO be nelg
during the week beginning August ~ io3o
(perhaps some Va the preceding week. me
Permanent memorial art palace ln wIlch .ile
mcetings are 20 be held contains two lafBe
halls capable OF seating 5000 persons IN
each ana there are perhaps twenty sInai lSi,
rooms with capacity OF from wv 20 "
persons each 10 IL thus seen that an on
the suhgectious can bc in session 40 the
same Time ID &c Is Thought best TO arrange
the matter iu that way.
a general plan Of subdivision has been so
elaborated es To cover the entire field and
specialists in all parts OF the world nave
been invited to present short papers or
from 20 minutes 10 half au hour reading
length on specified topics with which they
are particularly familiar, and ON Which
they are considered as authorities, by this
means every Important matter viii receive
a concise yet comprehensive treatment; view.
cl historically, theoretically, practically anu
iu future prospective. Moreover, these l'N
ports are 10 De printed IN tull, and the com
tolleCtum progress as 70 make ~ a cytlVp''
die monument commemorative or the oc'H-
sion The truly International character o.
this convention U.s. shown by the mention or
o. single subdivision Ot one or the special
sciences. for which tweuty-fOur reports are
being prepared by representative sGientists
e =
uud England. II SIS the intention. however
90 make the account OF the progress M
our own country the special feature OF
thu undertaking. aud 50 TIE American con
tributlOua Will be- The most numerous. In
view of this fact 10 is To- be- hoped that the
American habit OF self lauduuou viii not
boz permitted 90 appear. except tn the rev
rare cases whore we have uuden'ably tue
right to claim the leadership in tue advance
ucut ul some special knowledge.
~. Much Ot uur progress lu science Know
d.. r.
uuulOgiua Won Uulmhultz. the greatest OF
the German physicists. has brCh applying
the process Go ihv question VI wave mo
tuus. uut hc iluls That The water waves
hardly speak " mir waves, however ou
account Uf the huge dimensions which
THESE phenomena may assume; they are
proportions as To- satisfy the most imugiuu.
tive Wiuu. iu general DO may be- sud that
these u.r pillows are Of magnitude ut near
ly -IUu liWvg that uf water waves. When
the wind blows over surface Of water DO
Uuusus lhu water waves To- arise, ana in
tun suWu way one current Of air moving
luUiiy Oh ut rest VIII produce these mr
uIlows Water waves of N yard wave length
urD produced by "a moderate wind, uul
their puuutorpnrts 200 the Ulr due To this
OF from one 10 three miles, and the large
ocean waves Of, say 80 feet wave lDugtu,
would have as countcrpurts atmospheric
pillows with wave length ut perhaps
twenty miles. Such ftuppuuous phenomenal
can best br pictured by imagining the
greatest mountain ranges 90 bu huge fluid
iu successive uuduiatluua. This conception
OF Won liplmhOli1 is certainly of fur-reuCh-
ing aiEuibcaIt', for 10 provides au vNpaun'
ton Tor various hitherto uuugguuutahlv phe-
uumuua Tor Instance the action on such
nir waves would uc similar tO that of ocean
waves lu shallow water where the depth
is less than the wave lunEth. The trOughs
OF thr air waves would reach nearly or quite
tu the uurlhH surface ut Intervals ~ sew
rruI miles, while ihp crest would mount htgh
up into pluuluuu 10 is the passing pres.
WuNUs Chat causes the Intense wind gusts
which occur ut Intermittent periods during
10 wIll Doc with the greatest interest that
Nr shall await thv result Ot the practical
experiment lU 'ulr sEIuWur' about to hg
undertaken 10y Professor LHugIy. For sry-
vrul years Dee has been experimenting ut The
Smithsonian institution ut Washington,
with the view of uuriuutiug uu apparatus
which uhoud permit OF aerial navigation,
according Co the principles outlined uy him
boo hiH Smithsonian memoir the Century
Magazine Tor september 1871, and other
uINrrat ana accounts or which have appeared
from this last source We learn that the
machine D. ready Tor trui Professor Lang
lry found tult NJ plane or plato rs muu0
tu move through The air al a sufficiently
rapid wtg. 70 would hc sustained lu mid.uir
uul not tIll tu thv ground skater can
move rapidly over thin Ice which would
iNHlNllNN Nt hihhNN through VI Np stopped.
uid L. Is somewhat ON this same principle
TINT the body d. sustained iu the air. FRO
fIvsor luuglcy's laboratory experiments have
given contradictions Co ull Of our prp,luus
Ideas us regards thp obstacles 10 aerial
NAVIGATION, hui We have yet tu see whether
ur Ctt successfully transfer his results 90
iun mulch wilder range OF conditions 10 be-
met with In thr free Ur. The friction OF
lh" alr Us very smuN, practically negligible.
hui lly Resistance 90 amy body passing
through 10 is such us to place % limit On
iu" Nrlurluus uttnlunblr. iut There are
Other difficulties Go Dee overcome boa nature
which are not easily allowed for. and h
would seem w though thr winds would
cause us great a trouble Co aerial uaylgn.
ton us equally swift water currents wo0ld
lu river navigation, Tho Fyrltury move.
Wruts which are characteristic ur the storms
WHICH, ui Nhu' Intervals sweep over extend.
gu lrHiuus 600 tnp middle aud high utltudcs
Gu uut allow uf thu prUiriplmiuatluu nf AMY
drUuir condition. tur "a uAcd tune Meteor.
lhg Mlhl Nrl1.llrs away from the yluIfing
influences uf the cnrtlfa suryice. but we
Go know that - at au altitude of "A fpw
hUulitu Irti tNr ruplllty uf motion IRE.
uuthuA rArrruF "a mile "a minute aud ut IA
uulr elevation Uuo top OF Mt washington
Tor lusla9rc 10 Is sometimes double This
amount lu lHrfp heavy winds the who'll.
9ir mass generally has common ditec.
lluu hul tho current here aud thorr hrpuks
~ INTO small worthless which Wouil uuIpl.iv
swamp any Kind OF an air gong macbnT
Nhoh the air lH calm ut the curth's surface
mere are sometimes 10 bee found currpnts
moving Zoe variety OF directions al diner.
uhlr iiWrs 10 viii be- dlmCult to urescrv
constant conditions for manipulating "A NM.
tl'ue which iH not expected 10 drift nlnnt
bll'l inc manner OF balloons.