The mirror. (Stillwater, Minn.) 1894-1925, 1922-10-19
QUERIES
NOTICE TO INMATES

good literature, acquiring an education in our
Night Schools, or, who need helpful miorma-
ious departments, will herewith be privileged
to use the Query column. You are welcome
S ssea Tu an with Se Rad
ton of Miss Miriam E. Cary, Supervisor OF
Institutional Libraries, will gladly endeavor to
supply the requested information.
NOTICE-In order to regulate the conduct
of this column inmates must sign their name,
regis.er number and lock number to all queries
course, will not be published, only the initials
of each querist being used-Editor.
OFF the recent Worlds Series game
of ball between the Giants and Yankees
started at two o'clock in New York, what
time would it be here? PM. w. S.
A:-One o'clock standard time.
O-Please let me know in the columns
of The MIRROR if there are any national
holidays on record in the United States
and which days.. S.
A:-February advantageous Birth
day. July independence Day. Deem
Der Is - Christmas. In addition to
above: Election Day (1st Tuesday after
1st Monday in November All over
United States legal holidays are fixed by
State and Territorial legislation. 1t is
customary for the President to proclaim
the last Thursday in November as day
of Thanksgiving. This makes it legal
holiday in the District of Columbia and in
the territories, and it is customary for
State Governors to fix the same date.
O:-Would the Rotogravure Section of
the Detroit News, Los Angeles Times, or
Chicago Tribune, Sunday paper which
contains nothing but photos like the Mid
Week Pictorial which is permitted here be
allowed Wv. G. @.
A:-No.
O:-Please publish in the query column
the name and address of the publishers of
the Specially Salesman Magazine.-J. G. B.
A:-Robert E. Hicks Corporation, pub
fishers, 443 So. Dearborn ST., Chicago, III.
Q:-What practical method can be en-
ployed, without resorting to tables or COM
putations, to determine the diameter of
main pipe line that will have a cross-sec-
tional area equal to the combined areas
of two or more branch pipes of given dia-
meters p. II.
A:-The areas of circles are to each
other as the squares of their diameters,
and for a main to have a croSs-sectional
area equal to the sum of cross-sectional
areas of the branches, the square of the
diameter of the main must be equal to the
sum of the squares of diameters of the
branches. The square of the hypotenuse
of right-angle triangle is equal to the
sum of squares of the other two sides, and
if the sides about the right angle are taken
respectively equal to the diameters of two
branch pipes, the hypotenuse will be equal
to the diameter of main whose cross-sec-
tional area Will be equal to the sum of the
areas of the branches. A practical method
Of approximately determining the diameter
of main whose cross-sectonal area will be
equal to the sum of the cross-sectional
areas of branches based on the relation of
sides of right-ange triangle is to use an
ordinary steel square and a rule in the fol-
lowing manner. Suppose the branch pipes
are respectively three, four and eight inches
diameter. Measuring with rule from the
three inch division on the arm of the
square to the four-inch division on the
otneT arm, the leHStn OF nypOtenuSe is
found to be five inches which would be the
diameter of main whose area is equal
to the sum of areas of branches respective
ly three and four inches in diameter. Then
measuring across the steel square from
division five on the arm to division eight
on the other arm, the diameter of main
having an area equal to the combined
areas of all three branches, three, four
and eight inches in diameter, is found to
be about nine and one-half inches, in
Cicating that ten inch pipe would be the
nearest commercial size required to cover
the combined cross-sectional areas of the
branches.
NOTICE-Al inmates using the Query Col
unn and desiring more detailed information to
their queries invited to use the splendid
reference books in library to be had on
request The InternatiOna Text Rocks are