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Equivalents in other units


How fast is 123 inches per hour?

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It's about 0.00000002 times as fast as a Meteor.
In other words, 123 inches per hour is 0.000000021 times the speed of a Meteor, and the speed of a Meteor is 48,000,000 times that amount.
(formally Meteoroid or meteorite, depending on the context; a.k.a. "shooting star", a.k.a. "falling star")
It's about 0.000000009 times as fast as a bolt of Lightning.
In other words, 123 inches per hour is 0.0000000089 times the speed of a bolt of Lightning, and the speed of a bolt of Lightning is 110,000,000 times that amount.
(atmospheric electrical discharge)
It's about 0.000000000003 times as fast as The Speed of Light.
In other words, 123 inches per hour is 0.00000000000289478041 times the speed of The Speed of Light, and the speed of The Speed of Light is 345,449,346,000 times that amount.
(C) (in a vacuum)