The National tribune., 1897-11-18
PUZZLES IND QUERIES.
Some Y.oblems Which are Really /
Worth While Working Out

In place of puzzle column which only
contains brain-rackers, " involving ingenu-
ity. patience and research, without producing
anything of real int rest and value in the
end, we present pulling prob ems in science
and natural history, which involve actual,
valuable and practical knowledge, and
which, when worked out, will add to the
workers store of information on the working
of Natures great laws.
Answers to these should be designated by
number, as we number them con>ecutively,
give the answers in future issues, and also
the names Of the most successful solverS.
New Questions.
u. What is meant by the term "12-gage" az
applied TO shotguns?
81. Why. in preparing his thermometri'
system did Fahrenheit arrange his scale rs he
did; l. g., with freezing point of water at 81
degrees above the point selected as zero, and
boiling point at 2l2?
81. How is dynamite made?
81. What is the most frequently occurring
letter in the alphabet?
80. How is an ordinary Leclanche cell, such
as is used for bell batteries, made up?
81. What is vacuum pam?
81. What is litmus?
80. What is the chemical composition Of
hematite?
80. What is the meaning of the word
"torque" as used by the elect ricians?
40. How high will water rise in a suction
pump?
EDITOR NATIONAL TRIBUNE: In Question
No. you ask Where on the earth's surface
can the most extreme view be obtained?" In
the answer you say: The most extensive view
al sea level is al the pole" When you asked The
question why was 10 not stated that the view
tau lava l audi ,x,c AnI., huy be
question comprehensive? The top Of n mount
ain is the earth's surface just a, much as the
bottom of a valley, and person looking fol
the most extensive view naturally selects the
highest elevation.
In Question you will find that my answer
is in reality the same as the one you publish
although had shortened it somewhat / SAID
that the ball would go to the center of the
earth and there remain. Your answer said
that it would vibrate back and forth, and finally
come to rest in the center. In regard TO thu
hole being a vacuum the ball would vibrate 6
little longer, but would finally GENE to rest il
the center. The hole being a vacuum would
have no effect on the attraction of gravitatiOn
All objects are attracted TO the center of tht
earth. vacuum or nc vacuum.
In Question | think | gave an extensive
answer on the manufacture of celluloid. Still
you do not give me credit for it.
In questions aud s you say / gave illustra
tiODs instead Of principles. l think if you viii
look over my paper again you will find that
gave illustrations and principles in both cases
&C. K. MCCARRICK, Maiden, Mass.
In the original draft of Question !. tn,
words "at sea-level" appeared. but i'll publish
| ing i'll some manner were omitted. Mr.. Nc
| Carrick's answer to this question From Mt
| Everest" was therefore entirely correct, ant
an injustice done him. In regard Il
| Questions g. Z and 8, Mr. McCarrick's lette
| having been .nislaid. il cannot now be statet
| wherein the error, if any. Ill his answers lay
In regard to Question s. the vibration back ant
| forth forms important element III TIN
| answer, and should not have been omitted. Nj
McCarrick is i'll error regarding the cessation
of the back and forward movement were tn
Hypothetical hole through the earth vacuous
There being no friction to destroy the mutlo
| of the ball in that case, 1T would fall until i
reached a point at which the earth'5 attraction
exactly balanced the forward force given it b,
| the earths attraction in the first place, ant
| preserved by it by virtue of its inertia. |
would then start back ward with steadil.
accelerating speed until it reached the center