In 1671 he built a new kind of telescope that used a mirror to reflect the light it gathered, instead of a lens to refract it.
(he; built; a new kind of telescope that used a mirror to reflect the light; T:In 1671) (a new kind of telescope; used; a mirror; to reflect the light) (a new kind of telescope; to reflect; the light it gathered) (the light; gathered; it)
he a new kind of telescope a new kind of telescope the light
built used to reflect gathered
a new kind of telescope that used a mirror to reflect the light T:In 1671
a mirror to reflect the light
the light it gathered
it