By devising an instrument made from a rod, wire, and lead balls, and employing uncommonly precise measurements, in 1797–1798 Henry Cavendish’s apparatus enabled him to arrive at an astonishingly accurate figure for the weight of theearth.
A.By devising an instrument made from a rod, wire, and lead balls, andemploying uncommonly precise measurements, in 1797–1798Henry Cavendish’s apparatus enabled him
B.In 1797–1798,by devising an instrument made from a rod, wire, and lead balls,
...
A.By devising an instrument made from a rod, wire, and lead balls, andemploying uncommonly precise measurements, in 1797–1798Henry Cavendish’s apparatus enabled him
B.In 1797–1798,by devising an instrument made from a rod, wire, and lead balls,
...
