Energy Milestones
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AT THE VERY BEGINNING
AT THE VERY BEGINNING
OF THE HUMAN ENERGY
OF THE HUMAN ENERGY
WORLD
WORLD
PEOPLE RELIED ON THEIR
PEOPLE RELIED ON THEIR
MUSCLES...
MUSCLES...
...THE MUSCLES OF ANIMALS...
...THE MUSCLES OF ANIMALS...
.
.
...FIRE...
...FIRE...
...OR WIND POWER
...OR WIND POWER
FROM THE 18
FROM THE 18
TH
TH
CENTURY, A NEW SOURCE
CENTURY, A NEW SOURCE
OF ENERGY APPEARED AND DEVELOPED
OF ENERGY APPEARED AND DEVELOPED
RAPIDLY :
RAPIDLY :
THE WATER
THE WATER
THE WATER WHEELS, INVENTED TWO CENTURIES BEFORE CHRIST...
THE WATER WHEELS, INVENTED TWO CENTURIES BEFORE CHRIST...
... SPREAD ACROSS EUROPE WITHIN A FEW HUNDRED YEARS
... SPREAD ACROSS EUROPE WITHIN A FEW HUNDRED YEARS
THEY HELPED CRUSH GRAIN
THEY HELPED CRUSH GRAIN
grain
water
THEY HELPED SAW WOOD
WATER-
POWERED
COTTON
MILL
OPERATED
DURING
1770S
BY WILLIAM
STRUTT &
RICHARD
ARKWRIGHT
ENGLAND
.
.
AS THE STEAM ENGINES PROVED MORE FLEXIBLE AND ECONOMICALLY
AS THE STEAM ENGINES PROVED MORE FLEXIBLE AND ECONOMICALLY
EFFICIENT...
EFFICIENT...
... THEY GRADUALLY ENDED THE ERA OF
... THEY GRADUALLY ENDED THE ERA OF
WATER POWER
WATER POWER
