Great Falls tribune. [volume] (Great Falls, Mont.) 1921-current, 1921-03-20
Scientific Facts e e; 1 ss,g r sstm

There are about so operations in the
manufacture of gold pen.
a London choral society is training
the voices Of telephone operators.
Persons with blue eyes are said to
be rarely affected by color blindness.
Or. Czecho Slovakia's 5t,OO0,OOO
fruit trees about 30,OO0,O00 are in
Bohemia. es,.--,.-se.-..----,-.-.
An inventor has combined a gasoline
cigar lighter and lead pencil holder.
The government. of Argentina will
establish a naval aviation school near
Buenos Aires.
For outdoor work camera has been
mounted on handle shaped like q gun
to aid in accurate aiming.
OF German inversion u.s. hand oper-
ated implement that scrubs and mops
floors with a. single movement.
A new electric room heating radiator
| is open on all sides so the heat is sent
| out in every direction.
A daily airplane passenger and mail
| service will be established between
Paris and Amsterdam next month.
Made of bamboo withe~a metal fer
rule, holder has been invented for
| short ends Of erasers used by drafts
| men.
IL 0eCdu1c " ktySbs the DtHin eAefcisc
/ the game of chess has been made a
compulsory study in school in Ger
man city. sss.&f
/ For use where acids in water quickly
| corrode metals 4 pump has been in
vented that is composed almost entirely
of wood.
/ A Swiss inventor makes photograph
records on thread coated with a COM
position sensitive to sound when it be-
comes hard.
An inventor has patented water
proof veil to cover a woman's hat and
face but which folds very compactly
for carrying.
4 tri-weekly airplane service for
passengers and mail is being operated
between Paris and Prague by way OF
Strassburg.
Harness that holds chickens wings
down and prevents them flying away
from home has been patented by a
Missouri woman.
i Experimenters have found that jute
equal to the best produced in India can
be grown on the alluvial lands Of lower
Burma.
An adjustable attachment for lawn
, mower handles enables a man to cut
. the grass on slopes while standing at
the top of them.
Gravity operates davis invented in
Holland so that they swing life boat
. well out OF danger Of being smashed
| against the side of ships in being
| launched.
When running Minneapolis invent
or's automobile has two wheels like a
motorcycles but two small auxiliary
| wheels are dropped to balance it when
it stops.
. The coal deposits of Saghalien. be
lieved to be among the richest In the
, terests aided financially by the gov
eminent.
|, A novel cattle guard for railroad
: crossings has metal stars fastened
, loosely to iron rods SO that they turn
when an animal steps on them. fright
: ening it away.
) Tree transplanting machinery de-
e veloped In England raises large trees
between the wheels of four wheeled
truck. which transports them bodily to
, new locations.
. An Illinois inventor has combined
with q heavy duty snow pillow for rail-
; roads a device that cleans the rails
and enables locomotive and car wheels
to get good traction.
More efficiency than windmills of the
4 usual type is claimed for one invented
lin Denmark that has six wings. each
forming a section of a cone, with open
spaces between them.
A seat that folds back into the wall
of room has been invented for use in
connection with telephone to be kept
in a niche in the wall above it, space
saving being the idea.
The possibility Of charging storage
batteries by exposing them to sunlight
has been advanced by q European sci
enlist, who has charged experimental
batteries with ultraviolet rays.
Resiliency Of woven reed furniture
has been increased by designer who
substitutes ropes of braided sea grass
for the stiff reeds usually employed al
warp for the woven portions.
An organization Of Belgian scientist!
, has renewed an offer of a prize worth
about $4,000 for the best original worl
on the scientific advancement and tech
meal application OF electricity.
An Arkansan has patented swim
ming pool In which a gentle current o
&c water carries hathers through long ant
J. narrow parallel channels, one after an
J. other. until the start is reached again
g.. Timber Of suitable quality and plen
,, tiful enough to supply the world will
matches having been found in Malaga
is British company will establish !,
W match factory in the Federated Mala!
,r States.
il Driven by the action Of the ali
j. through which it passes, gyroscopi'
J. device has been invented to enable
j. aviators to keep their courses in fog'
& by moving an indicator to show whel
81 they deviate.
~ The japanese government is con
Is Quoting extensive experiments to de
~ termine the effect on the public health
N of saccharine as substitute for sugar
- its use in that country having been pro
r hibited for Is years.
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