Laser

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Articles about Laser

501 published items.

Why are lasers often only red?
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Why are lasers often only red?

Lasers are actually not only red, but there is a very good reason why they become the most popular laser today.

January 27, 2020
Time travel is entirely possible?
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Time travel is entirely possible?

Theoretically, a beam of laser light can create a spiral of time that can allow people to travel into the past, though only to a certain point.

January 8, 2020