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How fast is 0.00643 miles per second?

It's about one-fifth as fast as a Skydiver (belly-to-earth)
The speed of a Skydiver (belly-to-earth) is about 0.033 miles per second.
(Belly-to-Earth orientation, average conditions, terminal velocity)
A belly-to-Earth oriented skydiver's terminal velocity is about 0.033 miles per second. In a typical jump from 3,900 m (13,000 ft), a diver in this orientation will be in freefall for 60 seconds.
It's about five-and-a-half 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 one-fifth as fast as a Tornado
The speed of a Tornado is about 0.03430556 miles per second.
(EF2) (wind speed range average)
According to the Enhanced Fujita scale implemented by the US National Oceanographic and Atmospheric Administration, a "significant" tornado has an Enhanced Funjita scale classification of EF2 and is characterized by wind gust speeds between 0.03055556 miles per second and 0.03805556 miles per second. The largest recorded tornado — an F4 event occurring in Nebraska in May, 2004 — was almost 4.02 km (2.5 mi) across.
It's about one-tenth as fast as a Skydiver (headfirst)
The speed of a Skydiver (headfirst) is about 0.045 miles per second.
(Head-to-Earth orientation or standing, average conditions, terminal velocity)
A head-to-Earth or standing-oriented skydiver's terminal velocity assuming average conditions is about 0.045 miles per second. In a typical jump from 3,900 m (13,000 ft), a diver in this orientation will be in freefall for 46 seconds.
It's about one-tenth as fast as a Helicopter
The speed of a Helicopter is about 0.049 miles per second.
(for AH-64A Apache, a.k.a. Hughes Model 77) (maximum cruise speed)
The AH-64 helicopter, one of the primary helicopters used by the United States Army, flies at a top cruise speed of 0.049 miles per second. The AH-64 is the primary military helicopter of several nations including the United States, the United Kingdom, Israel, Japan, and the Netherlands.
It's about eight 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 one-tenth as fast as a Lamborghini Gallardo
The speed of a Lamborghini Gallardo is about 0.055 miles per second.
(for Gallardo LP 550-2, a.k.a. Valentino Balboni, 2009 model)
The Lamborghini Gallardo LP550-2 model Gallardo has a top speed of 0.055 miles per second. The Gallardo can reach speeds of 0.017 miles per second in just 3.9 seconds.
It's about one-tenth as fast as The TGV (train)
Flag of France
The speed of The TGV (train) is about 0.055 miles per second.
(Train à Grande Vitesse) (for SNCF TGV Réseau, a.k.a. "Network" model, a.k.a. TGV-R) (maximum speed)
The TGV Réseau sets have a top speed of 0.055 miles per second. The train is capable of travelling the 425 km (264 mi) distance from Paris to Lyon in East-Central France in about two hours.
It's about one-tenth as fast as an Arrow (archery)
The speed of an Arrow (archery) is about 0.05572 miles per second.
(250 g arrow fired from 60#/28" bow)
A 250 gram arrow will reach speeds of approximately 0.05572 miles per second when fired from a 60-lb, 28-inch draw bow . Archeological evidence from the Ahrensburg valley near Hamburg, Germany indicates that arrows have been used since at least 11 to 12,000 years ago.
It's about one-tenth as fast as a Porsche 911
The speed of a Porsche 911 is about 0.0568 miles per second.
(for Porsche 911 Type 997 GT2, 2007 model)
The Porsche 911 GT2 has a top speed of 0.0568 miles per second. It takes just 7.4 seconds for the GT2 to accelerate to 0.0278 miles per second.
It's about one-tenth as fast as The CRH (train)
Flag of China
The speed of The CRH (train) is about 0.06 miles per second.
(a.k.a. Hexie Hao, 和谐号, a.k.a. 和諧號, a.k.a. Héxié Hào, a.k.a. "Harmony")
The CRH-3 train which runs on China's Beijing-Tianjin Intercity Railway are capable of speeds up to 0.06 miles per second. Theses train can make the 120 km (74 mi) journey from Beijing to Tianjin in about 30 minutes.
It's about one-tenth as fast as a Peregrine Falcon
The speed of a Peregrine Falcon is about 0.0671 miles per second.
(a.k.a. Peregrine, a.k.a. Duck Hawk, Falco peregrinus)
The Peregrine Falcon can reach speeds of up to 0.0671 miles per second when diving. Falcons are sometimes sent to scare smaller birds away from airports to improve air traffic safety and were used in World War II to intercept carrier pigeons used by enemy forces.
It's about twenty 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 one-thirty-fifth as fast as The Speed of Sound
The speed of The Speed of Sound is about 0.2130 miles per second.
(in dry air at 20°C)
The speed of sound in dry air at 20°C (68°F) is 0.2130 miles per second. Air is a relatively poor acoustic conductor, however, as sound will travel at speeds of between 0.930 miles per second to 0.9690 miles per second in water, depending on its salinity.
It's about one-thirty-fifth as fast as a Bullet (Handgun)
The speed of a Bullet (Handgun) is about 0.2390 miles per second.
(for .40 Smith & Wesson 135 grain Sierra JHP, VV 3N37 powder, Fed. 100 primer, Remington case) (muzzle velocity)
A 0.40 caliber Smith & Wesson bullet has a muzzle a velocity of 0.2380 miles per second. This type of ammunition has been the standard issue round of the United States Federal Bureau of Investigation (FBI) since 1990.
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