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Light Exerts Force When It Shines
Key Facts In This Video
Light "pushes" objects with slight force—about a half a billionth of a kilogram per square centimeter. 00:29
It's possible for charged particles to travel faster than light if they are not moving in a vacuum. 03:10
Pushing a board to press a button one lightyear away would take about 900,000 years. 06:18
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