The National tribune., 1898-04-21
PUZZLES AND QUERIES.
Some Problems Which are Really
Worth While Working Out.

| IL. What distinguishes fly from othel
insectsl-F. l.. Burdick.
ID. What is meerschaumr-F. L. Bur
dick.
| received from the earth or sumo. r
Croker. Lodi, Cal.
I Is. N. S. Shaler in an article, "Tht
Depths of the Earth" says the moon docs
not revolve on it's axis" is this true?-C
II. Croker.
line Is established at a point 80 degrees
north latitude; also, perpendicular line is
established 80 degrees south latitude. Dc
these lines. meet at the center OF the
earth2-I. Hunt, Reedtown, o.
| 49, What is a "10-inch" gun?
10. What is the Drown powder" used by
| the Navy?
20. What is the difference between a
protected cruiser" and an "armored
| cruISer'2
ConIrade Asa W. Slayton, Grand Rapids,
Mich, sends answers to queries VI to 100
| all being correct. He calls attention to the
| fact that in his published answer to ques-
| ton 81 there was an omission, by which ne
1 was made to say that %, $40 billion lights
one foot apart would reach "Once" around
| the earth This answer is more than
| 1870, 900 times too small. There were lights
enough to make a belt of lights around the
! equator over 20 miles wide, if the lights
| were spaced one foot apart.
Mr.. Jonathan Hunt, ReedtOwn, D.,
sends two questions. Mr.. c. r. Croker,
Lodi, Cal, sends two questions.
10. A pound of feathers is much heavier
than pound OF gold; because each is
buoyed up by the atmostpere to an amount
equal to the weight of it's bulk of ar; hence,
the feathers must be heavier to extent
equal downward pull.-Asa w. SlaytOn.
The weight of feathers is determined by
ord,
The avoird upO SO pound is 1900 grains; the
troy pound is 5. 100 grains, and therefore a
pound of feathers is the heavier.-Wm.
Haspham.
pound of feathers is and 34-144th
times as heavy as pound OF gold. Feathers
are weighed by avoirdupois weight, gold
by troy weight.-F. l.. Burdick.
IL. The change of seasons is caused by
the earth's axis being inclidcd 23i" to-
ward the plane of it's orbit and tho revOlu-
ton around the sun, this bringing the suns
direct rays on 4T' Of the earths surface
f. L. Burdick, Franklin Corners, Pa.
The earth's yearly revolution is performed
with its axis inclined to the plane of it's
orbit, and always pointing in the same gen.
erai direction; to this fact is due the change
OF seasons. The direction in which the
suns rays strikes any part of the earth's
surface is continually changed, and with
1T the amount of heat received.-H. L.
Matthews, Kinsman, o.
u. The Julian calendar, adopted 46 3. c.,
made the year consist of 365 and one-fOurth
days. and had three years of 365 days, then
one Of 366, continuously. This added an
average of II minutes II seconds too much
to each year. Pope Gregory, KILL, in 1882,
directed that the surplus, then amounting
to 10 days, be omitted from September and
thereafter that years exactly Invisible by four
should be leap years, except that the CEN
tennial, or hundredth years, must be divisi-
In. Hal
years by d 900 without remainders, in order
to be leap years. Also, the Julian had two
sixth days of February, SO Cesar would have
two birthday anniversaries; while the Gre
gorian calendar adds the extra day at the
end of the month.-Asa w. SlaytOn, Grand
Rapids, Mich.
There are II days difference between
the Gregorion and Julian calendars.-H. 7.
Matthews, Kinsman, o.
The Julian calendar made every fourth
year leap year, giving 3. HAP days too many
in four centuries. The Gregorian calendar
NAL years Invisible by 400 leap years.
Thus, 1900, which by the Julian calendar
would have been aleap year, is reckoned
a common year,. L. Burdick, Franklin
Corners, Pa. y fa
73 Blank space, or whatever occupies
space, the best transmitter of heat. Copper
the best conductor of heat.-Asa w. Stay
ton Grand Rapids, Mich.
"a. The highest balloon ascension was
made by Glaisher, reaching the hight of
36, $40 feet above sea-level.-F. L. Burdick,
Franklin Corners, Pa.
Glaisher reached one and One-half miles,
where the barometer sank to seven inches;
the balloon contained so, 600 cubic feet of
gas.--Asa w. SlaytOn, Grand Rapids, Mich.
IS. Do not know the market price or the
mint price of an ounce of pure gold; but
when properly alleged with one ninth its
r - 4 O.
hundredths dollars of gold coin. SO
one ounce of fine gold is worth, measured
by gold or silver coin, s20.67; measured by
silver bars, worth about three and one
fourth pounds; measured by copper ingots,
worth liz pounds; by pig-irOn, about three
tons; by wheat, 20 bushels; by corn 81
bushels; by hay, three and One-haf tons;
by days work, from to 60 or more, accord
ing to profession, what Union, ability age,
and sex.-Asa w. Slayton, Grand Rapids,
Mich. @t..' '5aotia
rs. Daltonism is the lack of power with
some persons to distinguish colors; as red,
blue, and green.-Asa w. Slayton, Grand
Rapids, Mich.
Most commonly affects the power to per-
ceive red. 1t is SO called from the chemist
Dalton, who first carefully described the
affection, being himself subject to it.
l.. Burdick, Franklin Corners, Pa.
II. The Bunsen burner has two supply
tubes; one admits the coal gas, the other
supplies enough air SO that it's oxygen will
consume all the carbon of the coal gas;
thus making a very hot flame with little
light and no smoke or soot.-Asa w. Stay
ton, Grand Rapids, Mich.
Is. Surface of Lake Superior 627 feet
above sea level; greatest depth stated 1 900
feet makes it 373 feet low er.-Asa w. Stay
ton, Grand Rapids, Mich.
The bottom of Lake Superior descends
407 feet below the sea level.-A. M. Blaney,
Decatur, Ark.
Lake Superior extends 373 feet below the
sea level-F. L. Burdick, Franklin Corners,
Pa.
10. Our moon makes it's revolution around
the earth in 20 days II hours IA minutes
and seconds, and is supposed to revolve
once upon it's own axis in that time-A
NJ. Blaney, Decatur, Ark.
The average time of the moons revolution
is II days hours 43 minutes liz seconds
F. L. Burdick, Franklin Corners, Pa
Moon revolves around the earth in refer
enCe to space or the stars in q DAYS hours
AZ minutes; but in reference to the sun. or
from new moon to new moon again, it takes
20 days II hours "A minutes-Asa w. Stay
ton, Grand Rapids, Mich.
80. There should be 100 ten-penny nails |
in one pound; for 900 nails as formerly |
made by hand weighed 10 pounds. Cut |
nails made by machines are heavier, Ga |
ten-penny, SO eight penny to pound. Wire |
nails haIpp of nf wire