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The tornado peaked at F4 on the Fujita scale and remained on the ground for an hour, cutting a swath of destruction 30.8 km (19.1 mi) in length and up to 1.3 km (0.81 mi) wide in some places. [ 5 ] [ 6 ] It killed 27 people, and injured more than 300, destroyed more than 300 homes, and caused more than C$ 332.27 million (equivalent to $762 ...
The second touched down in Port Dover, leaving an estimated $20,000 of damage along a 2.5 km (1.6 mi) path. [600] August 14 - the province was hit with five tornadoes, the largest given an F2 rating and touching down in London. It was on the ground for approximately 3.2 km (2.0 mi) and caused an estimated $100,000 in damage.
Minimum peak wind speed Maximum peak wind speed Highest confirmed peak wind speed EF3 April 26, 2024: Harlan, Iowa — — 224 mph (360 km/h) A Doppler on Wheels recorded a wind gust of ~79 m/s (180 mph) about 258 m (846 ft) above the radar level. Peak ground level wind speed was estimated around 224 mph (360 km/h). [45] [46] [47] EF2 April 27 ...
Near the tornado's peak intensity, they recorded a wind speed of 115–120 meters per second (260–270 miles per hour; 410–430 kilometers per hour). Though the portable radar had the uncertainty of ±5–10 metres per second (11–22 mph; 18–36 km/h), this reading was probably within the F5 range, confirming that tornadoes were capable of ...
In 1873 Wheeler's sons, along with S. T. Merrill and C. B. Salmon, organized the Eclipse Wind Mill Company and the company began to grow steadily. [11] At first the wheel design used four vanes, but this was changed to a wheel with a dense pattern of fins, a signature of the Eclipse, and was manufactured in several diameters from 8 1/2 to 14 feet.
The reference wind pressure q is calculated using the equation q = ρv 2 / 2, where ρ is the air density and v is the wind speed. [ 19 ] Historically, wind speeds have been reported with a variety of averaging times (such as fastest mile, 3-second gust, 1-minute, and mean hourly) which designers may have to take into account.
Wind speed Wave height Sea conditions Land conditions Sea conditions (photo) Associated warning flag 0 Calm < 1 knot < 1 mph < 1 km/h 0–0.2 m/s: 0 ft 0 m Sea like a mirror Smoke rises vertically 1 Light air 1–3 knots 1–3 mph 1–5 km/h 0.3–1.5 m/s 0–1 ft 0–0.3 m Ripples with appearance of scales are formed, without foam crests
The faster the relative velocity, the greater the time dilation between them, with time slowing to a stop as one clock approaches the speed of light (299,792,458 m/s). In theory, time dilation would make it possible for passengers in a fast-moving vehicle to advance into the future in a short period of their own time.