Blackfoot news. (Blackfoot, Idaho) 1891-1902, 1898-03-12
FARM AND GARDEN.
MATTERS OF INTEREST TO
AGRIcuLTuRlSTS.
sems Cp-to-Dats Hints abeas Gull
rss~tssa OF the son and Yields
Thereof HersIcaItars. vitiealtare and
Horticulture.


Ntudmtu sStghtc
Mr.. Hubbell. at an irrigation conyen-
Hon, said:
In mechanics the basis OF all calcutta
tons Is upon the mechanical horse
power which is the equivalent OF $4,000
pounds lifted one foot In one minutes
lime yielding $1,000 foot pounds. All
windmilIs are given by the manufaet-
Hrer a certain horse power equivalent.
this capacity being predicted upon what
the windmill Is capable OF doing IN
wind OF twenty miles per hour. and
which is. by the way. good stin blow.
and by far stronger wind than gener-
ally prevails. A more conservative aver
age upon which 20 base your calcutta
lions for general purposes, is not 70 ex-
coed an average of more than nfteen
miles per hour II Is here proper 70
say that windmill OF any diameter has
greater or less power as the square OF
the velocity OF the wind in miles per
hour, and therefore mill which would
develop three horse power in fifteen
miles per hour would have but one and
one-thlrd horse power capacity when
the wind was blowing at the rate Of ten
miles per hour. The square OF 10 10
225. the square OF 10 Il 100. A mill OF
any diameter will handle greater or
less quantity or water as the yerticle
height Of discharge In feet ID decreased
or Is increased: for instance. mill that
will raise 100 gallons OF water per min
ute fifty feet vertically. will lift 200
gallons per minute twenty i've feet YER
tieally. or the same mill will lift nfty
gallons per minute 100 feet vertically.
A cubic foot OF water weighs approx
mately sixty-twO and one-haf pounds
and contains approximately seven and
one-half gallons. gallon OF water
Weighing about eight and one-third
pounds It will be Of great personal
assistance II you will remember thai
7 the pumping Of water ID a simple me-
chanical problem. and acquire the
habit OF reducing the quantity Of water
I 20 be handled 10 so many foot pounds.
4 II you will do 80 Il will save you from
/ serious disappointment. Perpetual mo-
ton has not yet been discovered. he-
+ member above all things one pound 81
any substance, no matter what SUB
stance. lifted one foot vertically in one
minutes time. or equivalent. requires
a mechanical force OF one foot pluA
/ the friction which Is due 10 the means
employed. You can lift yourself over
the fence by your boot tops Just a
easily as you can get away from this
Fixed law. A great deal - said to-day
I by various persons concerning thstl
ability 70 eliminate friction. and that
+ By this means. or that means they car
discharge a given number OF gallons Of
water per minute a given number 81
/ feet VERT aIly with less power that car
\ Be done by any other means OF exactly
the same principle In every detail Il
/ ought not 70 take any person long e
+ make up his or her mind than ths per.
/ son making any such statements de
/ IIberateIy deceives himself to say th'
least. Along this same line % though
z Il IL proper 10 state that exaggerated
\ ideas prevail 70 what can be accom-
/ pIIshed BY the wind for various poWei
( purposes. The pressure Of the atmos
phere at the sea level Is but ~,
/ pounds per square inch. When tn,
wind Is blowing Al velocity OF twent,
I miles per hour. such a wind exerts
[ pressure Of but two pounds per squar,
foot Of surface exposed. Therefore IN,
power Of windmill Is necessarily lin
I tied By the velocity Of the wind and 10
this reason wlndmiIIs can be used 70
pumping water for irrigation or othe
purposes demanding large volumes o
water TO but a limited extent. and In al
instances where windmllIs are utillzet
for this purpose they can be success
fully used only in connection with req
ervoirs Of ample capacities.
An acre of ground contains G.272. "a
square inches. II one acre Of groun
be covered with water one inch deer
we would have a quantity or waite
equaling 27,155 gallons or what /