The National tribune., 1898-08-11
PUZZLES IND QUERIES.
Some Problems Which are Really
Worth While Working Out.

II. The simplest way, perhaps, of CON
Meeting an electric car with the trolley
wire, when 1t IS In a conduit under ground
is to have the arm bearing the trolley
wheel pass through slot between the
tracks, similar to the cable car connection.
though | am informed there are several
other methods. The elevated electric cal
has usually a third rail, by the side of one
OF the other rails, which is the conductor
and on which the trolley wheel runs Asa
W. Slayion. :.
y. If the question is to be taken as it
reads-iaking hold of live wire wi h one
hand while the feet are insulated from the
ground ne would receive no shock that
would be dangerous. But if the other
hand or any part of the person touched
any wire reaching to the earth; or if his
ladder, or the pole, or the platform on
which he was working were wet, he would
not he insulated, but would be shocked
have thought that perhaps if were per-
fectly insulated and should touch live
wre charged with electricity of many
thousand times greater intensity than tn at
existing in my person, that enough might
play off on me to shock me, tn ugh have
not tried it yet. The rcpairers in this CITY.
standing on dry Platforms, handle live
wires every day with impunty and i'm
munity. W. Slayton
ordinarily, with low potential currents s,
such as used for incandeScent Iamps. no
shock Is felt by a man unless his bo Y
acts as conductor between wire and
earth. WI n high rOtentialS however the
phenomena OF static electricity begin 10
appear, and man standing ON a glass
legged STOOL may re ccivc shocks
-. Steel wcirhS 4.5i3S6 ounces to the
cubic inch-say, four and one half
ounces, tribe more or less; kinds vary -
Asa w. Siayton. ~
"a. Plat mum cannot be melted in the
most rfIIt hi . fi,rf no ,r
the oxyhydrogen blowpipe. only melts II at
a temperature estimated at 800 TO 1891 +
ASA ". Slayton.
Melts al $3.50 degrees F.-O. Heiser.
A piece OF platinum of any size can only
be me ted py the oxyhydroyen blowp pc
but very fine wire tan be melted by the
ordinary MOUTH blowpipe. e.-Xenotime
20. Camel mbtures IN four to five years;
lives 40 to 80 years; has one only al a
b,rt.i.-Asa ". SIayton
1t taxes c ght years for a camel to attain
its fuil g-owth, and lives, on an average
6S years.-O. Heiser
%. The trajedtoyyfof of shot is the Path
which it travels from the gun to the stop.
Because OF The resistance of The air and
loss OF mo ion cit is neither n true curve
nor a paraboa; ca IT curviIInedf.-Asa sa
w. Stay ton.
u. Cuba, alone 43,3l9 square miles-27.-
72i +, 90 acrcs.-Ssa W. Slayton
~ The VIII e}ieasi torpedo is fred in the
direction NanUed by slight charge of
compressed airN Itis the driven through
The water by e screw propeller, receiving
its energy from miniature compre ssed ar
engines. ) eering iS eEectei by an Ingeni
ous application OF The gyro.cope. so ar
ranged hat the torliedo cannot sweree
from the line in which il is fred -Xeno-
time.
~. The p,erodactyl was species OF
flying, swimm ng lizard OF the Reptilian
Age. The shape of lis head and long neck
resembled those of BIRDS, its hig mouth had
teeth Ike hose of the CROCODILE its fore
leEs were immen ely long. and its wings
ere mem hTanes extending from fore legs
10 hind leg BIKE those OF a bat; only IN. The
| pteToda tyl The wing, st eich from The fif1
toe instead of he first, as in the bat
| hence he had no claws along the dpe oi
the wing. IL had enormous eyes, and ils
bdy and tail were ike those of the mann
mails. With body five or six feet long a
neck OF foui or five fce;, head three or
1our iect, with mouth nearly its length
lined each side with d detached, con ca
| teeth, and with big, saucer eyes clasiHg n
the darkueSs, ard soft, web vi gs happins
10 or 20 feet fcom tip 10 tip. he would suIeI}
| be an unwclcome night ii ior in lest
DEGENERATE days. He probably did not fl,
| much, as there was 40 projecti4 4 keel or
the breast bone for the attachment OF stron.
muscles. Perhaps he dozcd the warm da,
away, cllnging 10 the side of some rock o
| nee; aud. when its bright glare was gone
| the great eyes opened ard he fitted her,
and there for the mammoth insects. anC
now ana then made swoop for an un
lucky fish. 10 complete his supper.-A,d W
ISL, yftD