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How fast is 859.40 kilometers per hour?

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 It's about 3,500 times as fast as a Sloth. In other words, the speed of a Sloth is 0.00028 times 859.40 kilometers per hour. (for Brown-throated three-toed sloth, Bradypus variegatus)The three-toed sloth moves along the ground at an average speed of 0.24 kph. Long thought to be lengthy sleepers, a 2008 study concluded that sloths sleep an average of only 9.6 hours per day. It's about 0.0000008 times as fast as The Speed of Light. In other words, 859.40 kilometers per hour is 0.0000007962916210 times the speed of The Speed of Light, and the speed of The Speed of Light is 1,255,821.330 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 exactly 1,079,252,850 kilometers per hour, per the formal definition of the meter. While visible light travels close to this speed in air, it slows to 719,501,899 kilometers per hour when passing through the glass of a typical window. It's about 6,000,000,000 times as fast as Grass growing. In other words, the speed of Grass growing is 0.000000000170 times 859.40 kilometers per hour. (for Kentucky Bluegrass, Poa pratensis) (a.k.a. Smooth Meadow grass, a.k.a. Common Meadow grass) (Summer months, ideal growing conditions)Kentucky Bluegrass, one of the most common grasses in North America, grows about 0.000000150 kilometers per hour in the summer months under ideal conditions. When left un-mowed, Kentucky Bluegrass grows to heights of 60 to 90 cm (2 to 3 ft) and blossoms with a blue flower.