The times dispatch. [volume] (Richmond, Va.) 1903-1914, 1912-10-04

ANSWERS


jim Crow and Physfes.
Wa. the Jim Crow Law" named
Please solve this problem in physics:
a thread Of mercury 10 en-. high 10
weighs s. grama Find the diameter
OF the ssp sha gsm tube ;ro ,d r + nd
indecent nickname for the negro. and
this in turn comes, probably, from an
oid-time song with much allus'on to
"a little Niger here" and lump. Jim
"a Jim Crow jump" comes from som:
fancied regularity Of the corvine gait.
and Is kin In its origin to the turkey
trot and the bear dance.
duction of a rather rough hand. Many
makers of our present day school texts
avail themselves OF the philosophical
dictum that thing must be objective
or subjective. and. as they have been
ever may be the growth OF the
Baconian ideals and the success Of the
days tendency towards the practical
learning for iearning's sake. for Its
good manhood is forgot. and our stu
dents are hurried towards some fancied
goal Of practical experiences lest some
other get there f!rst and Erao lnS
s's ans sy s r sSe sSes
graduate" and begin to teach and
become blind leaders 6f the blind are
the crop which We now see eboue Not
long ago We corrected for new edi-
which we understood that 1t had con-
siderable vogue. The number OF errors
in grammar ran Into the hundreds. ana
the author" seemed surprised that one
in a language book" a rather unlike-
ly place to ind It By the way. A
school history. which in It's first edi-
tion had been adopted for the public
schools Of several states. came to Us
for revisal. and though It was a. pro.
fame a book as bad language could
make it. the author" wrote us with no
little heat about the "capfious oo5ec.
lions TO the style" Your problem
bears the marks OF the most ,s.t feE Msv
be. II capillary tube" means the
same thing both times the problem ts
incapable Of solution II the second
use means the bore OF the tube. the
then becomes simple enough II has
nothing In the world to do with phy-
sizes. and IL makes no dinerence
whether the tube is capillary or not:
of the column Of mercury. Get from
your book the weight Of cubic incn
of water and the figures representing
the specific weight" OF mercury ana
multiply tpKetnST lot INC ~CSShS VI
Gu. in. Of mercury. converting the re-
SUIT into grams fraction having
. fer the .,umerator and the result just
obtained for the denomination viii snow
the solid contents of the column OF
mercury In the fraction OF q Gu inen-
Reduce this to cubic en- ana DIVIDE oy
10. the height Of the olumn. ana you
will have the area OF the cnSusAr
base. which Is the bore" Of the TUBE
Divide this by s1&ts and take tnS
square root and double II and you VIII
ger the required diameter. You VIII
rote that we have to assume the shape
~ the "coluu.n" Of mercury a. the
precious statement" Of the problem,
nowhere divulEes this necessary tnfor-
mat on. Partly out or CURIOSITY. We
.hcuId he pleased 30 have our CORE
sDo,iien, send US the tile Of the book
from, which he took the problem ur-
der consideration. and the name o. sne
publisher. We may be able to 90 tne
Virginia schools some service u sse
matter.
ursSA OsrsSo0oSy.
Can I procure q dictionary OF irIse
~ fhc country? -. n ASh
W, rave nothing but Conveys. pun
ush.d in Dublin is 1888. This may
I've got through your bookseller. IL 70
probably In the state Library. an u
conssdered sufhciens fcs ordinary pur.