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45 miles per second is about one-four-thousandth as fast as The Speed of Light
In other words, it's 0.00024156871885016 times the speed of The Speed of Light, and the speed of The Speed of Light is 4,139.60882336040 times that amount.
(C) (in a vacuum)
The speed of light (and all other electromagnetic radiation) in a perfect vacuum is known as "c" and measures 186,282.397051220 miles per second, per the formal definition of the meter. While visible light travels close to this speed in air, it slows to 124,188.264702890 miles per second when passing through the glass of a typical window.
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