'In 1960 Theodore Maiman built the first of these devices using a ruby'
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SCIENCE & NATURE: In 1960 Theodore Maiman built the first of these devices using a ruby
In 1960 Theodore Maiman built the first of these devices using a ruby
In 1960 Theodore Maiman built the first of these devices using a ruby
SCIENCE & NATURE
Laser
SCIENCE & NATURE