, 1879-03-22

cstctl. al question OF food Expecting 10
trouble sou moro III tue near future, WI, soso
MYSTERY OF THE GYROSCOPE.
James McCarro1i's Pretended Discovery n
Hnn,bnE-liodies In Motion IInvo Just tho
Eamo Weight Al Whom nt Roat.
4imsrtodn Butider.
We read The following IN tie New York HsraaI
Of jan 2J:
NEW LAW or Aof1oN-AS EXPOSITION or rHa
r,o a,:srs Mrsv.n'Es Or THE 81, orn9scnrE; q. at.
apucryphal and that a clear .olutIon Of .ao myie-
Of lrish birth, 81, Janus Mecarroll. appears 10
conpli4hcd lnc other, lie proofs of which, 20 inr
a. we ore able tn lat,Ye from, lasty GLANCE, now
ss1s % III e, ssss sss g.; asnes ~ ss a
Wight 4 esery 'onsat; ~ ss ths,. xSsn ,nntsng
The carst OF nttla wise this taugent,al forca, an'
tngon[kln1 with that OF gravity. aery0s to c'lanyo
Ttsh a f. ns nfS L % a0wn
Ii rclatlon to ,the mysterious, problem Of tho
satisfactorily solved prerionsly.-a:s solution u
scctnlnsty quite clear In fact, ha unpeats to de-
o II rsn Sestns. a0a,
does W!Gn u At rest f1nm tho fact u nc alleges
sn so ~ hn Srci In ~ adnncp ~ u n ~
various angles In the line Of tic earths
gsa1,ity1 aha one Or tnan directly 10 ihat me;
pcrpbrry hpfc tendenry 10 Nv oil contrary d!.
| rce.iou. establishing IN unequal distribution Of
t6rens nsoh tno ats e. ana sas M hna psss ~ a,us o.
| gravity, Rims tic tanrcntiaj iotee of tho wheel:
nnd on the other It's pravity, unus ihqt {orcs;
IIn .s e WITH, H. e ghe, reyoes IL Appaf
en: n csss; Tor H.. sae. bctue trse to ooey apy
!nlIuse ar@- In ~ u'vn plaue, simply rstlres .
tetose tne nlns side u tto Wheel; sna T. atrsf-
itn'i contrary 10 ~ sevoiltnn OF tne wmeG, a
q ny y .ustninsa
o. o. % ono % sIao q ;a lie ,ap:IFSt pi,voI p, upsa .
| Guri7ontai ring rests freely, Mr. McCarro,i
tnys that, when the vertical wheel Is mahe 10 70.
tate rapidly at TIM tangcntial forco Is IN Gxcess
Of that Ut erayttatot On Ihe whole masst onth rlng
an %sri W. 1enan @ y e. wtoS m!is aS ~ a G
set % IT. IT. 9Hy XVII se m', " c .aG ~. ,;met"n I
FIT, liz 9qa" r1nw tsste !S reyoing uIo p.diy a. s
tau@cnif.i fn5se II In wtuai d"errasss and il tic
below tic force .xcrc,aei upof, tic woic inass bY
tue gravity Of thc rnrh bot, ring mud wheel oeEta
TO gradually deAcribe downward the ars ar n circle
to ns 10 s s nj. q
w ~ ro4;vu nt, ~ te e1ha.ei mass
tu,h1rs ,auI IL, ihe plnt,nh T. '''' '''
After reaIInt. The aboyc, we wrote down fcv
49,, .sna.,. r,n.a ,.n,,, u.,,a,, -, n.r,. ",
what Mr. McCarroll calls fourth law OF motion,
md sent 1t TO tie ierad for publication; Its H.
sortton howcvcr wa. rcf,scd. Sonuc1' forth.
ucslse o. tal paper 10 uo justice 'os .ue Bike o.
scientific truth.
This pretended new law Of motion, claimed to
have ccu inst dtscoyercd. ls an old error, eustly
1I,a,,,.., ~, ,,,-on, oxno,1,,o,t av1 h.s,1o, IL
dlspfoYe" W u'scct e1peF'n'c"t, a"o' oss'oss' u
utterly contrary 10 OIL principles OF correct
, science. The very hypothesis. thai bodies 10
I'd In 1853 as MI explanation Of tue motion Of
the gyroscope. and thoroughly discussed at
several successive meettlEs ot the hechal-
tcs' lna!ttutu Ii, New York. We quickly set
tied tl'e matter BY placing 2 Eyroscope On ti.s
was exactly lhe GAME whether 1t laid still Or
was rotating an Its plyos; which proved th4t tho
onty dIiferenec WIS ln!t, during ths rotation.
tlIsk, and l!la,, consequently, tho weight VIVA
no. In ,lle least Diminished during the rotation.
hut, Oh Il little reflection, 1t Is even a priori
clear lint thu assertion; "a BODY "a ot uniform
OF uotton,, must be utterly false. Atn nut, by
tie daily rotation Of the earth, all the bodies
on its eariucn III rapd mutIon1 Bodies under
thc Equator lnoye III tweuty.tour hours through
,Ustnnce VI 2i,OOO miles, or more tlla,, 1000
| n,Ilcs MI Gour,-u yeiocity surprising twenty
times that Of tho swifiest' exprcss.tran
They do not loso mote Of their weight
than Ia due to tho centrifugal tenden-
cy nro1urcu by tho curvo they descrlbc
which clIrye is part OF crcia 80 larqe
tl,mt. practicable, for the dstapce Of several
mira 1,s h may N, rot1sdcrcd as q straight line,
III" Theory of The moon, established by Newton,
nroyes tlat this body, witch n,oYcs with d
ycIwlty OF more tha,i n,0DO tnilca per hour
through much larger circle, Ia attracted By thu
| enrtf precisely as much aa X size stood Sttti !;
nrnyel tl,at t1en she would iiv otf ut d tangent,
mi our earth would long ago havc lost ler
| luoou. ....-
Hit nerf,ans Mr. McCarrclf does not beltcyC Ia
the rotntiun Of the eart.,, nor IN tho great dis
tnnro ri tLn moon. which ID likely Judging from.
him In. fart tI,nt can,,on bull when projected
horizon,sjiy iro, a elevation. descent}s just as