'In 1675 Danish astronomer Olaus Roemer announced the 1st real measurement of the speed of this'
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ASTRONOMERS: In 1675 Danish astronomer Olaus Roemer announced the 1st real measurement of the speed of this
In 1675 Danish astronomer Olaus Roemer announced the 1st real measurement of the speed of this
In 1675 Danish astronomer Olaus Roemer announced the 1st real measurement of the speed of this
ASTRONOMERS
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ASTRONOMERS