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How fast is 0.42 miles per second?

It's about one-one-hundred-fiftieth as fast as a bolt of Lightning
The speed of a bolt of Lightning is about 61 miles per second.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to 60 miles per second when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.
It's about 250 times as fast as a Crocodile
The speed of a Crocodile is about 0.0017 miles per second.
(American Crocodile, Crocodylus acutus) (swimming speed)
An American crocodile can reach speeds in the water of up to 0.0017 miles per second. On land, larger crocodiles can "gallop" when fleeing danger at speeds of up to 0.0035 miles per second.
It's about 350 times as fast as Michael Phelps
The speed of Michael Phelps is about 0.001207 miles per second.
(at the Beijing Olympics, 2008; 200 m freestyle) (a.k.a. Michael Fred Phelps) (swimmer; 1985-)
Setting a world record, Michael Phelps swam the 200 m freestyle in 1:42.96 for an average speed of 0.001207 miles per second. Phelps would go on to win nine gold medals individually in the 2008 Olympics - more than all but eight of the competing nations.
It's about 500 times as fast as Walking Pedestrians (in Manhattan)
The speed of Walking Pedestrians (in Manhattan) is about 0.00081 miles per second.
(Manhattan; average speed; 8,978 person-sample)
A 2006 Study by the New York City Department of City Planning found that pedestrians in that city walk at an average rate of 0.00081 miles per second. Pedestrians wearing headphones, the study went on to find, walk at a slightly faster 0.00088 miles per second
It's about 1,000 times as fast as an Iceberg
The speed of an Iceberg is about 0.0003 miles per second.
(a.k.a. Berg) (Newfoundland iceberg average)
Moved by ocean currents and wind, icebergs can drift at speeds of about 0.0003 miles per second. The largest iceberg ever recorded was a found near Baffin Island, Nunavut and was estimated to be nine billion metric tons.
It's about 10,000 times as fast as a Sloth
The speed of a Sloth is about 0.0000420 miles per second.
(for Brown-throated three-toed sloth, Bradypus variegatus)
The three-toed sloth moves along the ground at an average speed of 0.0000410 miles per second. 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 one-four-hundred-fifty-thousandth as fast as The Speed of Light
The speed of The Speed of Light is about 186,282.397051220 miles per second.
(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.
It's about 15,000,000,000 times as fast as Grass growing
The speed of Grass growing is about 0.0000000000250 miles per second.
(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 0.0000000000260 miles per second 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.
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