最終更新日：2022/12/24
In the past, before the widespread adoption of SI units, the work that engines were capable of doing was compared with the work that horses could do – hence the term ‘horsepower’. Various people came up with various equivalencies, but the modern agreed definition is that 1 horsepower is 746 joules per second or 746 watts.
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元となった例文
In
the
past,
before
the
widespread
adoption
of
SI
units,
the
work
that
engines
were
capable
of
doing
was
compared
with
the
work
that
horses
could
do
–
hence
the
term
‘horsepower’.
Various
people
came
up
with
various
equivalencies,
but
the
modern
agreed
definition
is
that
1
horsepower
is
746
joules
per
second
or
746
watts.
