Tren versus Tornadă!

The lowest ranking is F0 and the highest is F5. On average, only one F5 tornado hits the United States each year.

# F0: Gale tornado Wind Speed: 64-116 km-h Damage: Some damage to chimneys; breaks branches off trees; pushes over shallow-rooted trees; damages sign boards.

# F1: Moderate tornado Wind Speed: 117-180 km-h Damage: The lower limit is the beginning of hurricane wind speed; peels surface off roofs; mobile homes pushed off foundations or overturned; moving autos pushed off the roads; attached garages may be destroyed.

# F2: Significant tornado Wind Speed: 181-253 km-h Damage: Considerable damage. Roofs torn off frame houses; mobile homes demolished; boxcars pushed over; large trees snapped or uprooted; light object missiles generated.

# F3: Severe tornado Wind Speed: 254-332 km-h Damage: Roof and some walls torn off well-constructed houses; trains overturned; most trees in forests uprooted.

# F-4: Devastating tornado Wind Speed: 333-419 km-h Damage: Well-constructed houses leveled; structures with weak foundations blown off some distance; cars thrown; large missiles generated.

# F-5: Incredible tornado Wind Speed: 420-512 kph Damage: Strong frame houses lifted off foundations and carried considerable distances to disintegrate; automobile-sized missiles fly through the air in excess of 100 metres; trees debarked; steel-reinforced concrete structures badly damaged.

Sint convins ca o tornada puternica are o forta pe masura sa de mare; insa nu inteleg cum a fost facuta filmarea: in momentul impactului dintre vagonul cisterna din spate si vagonul din care se presupune ca s-a filmat, camera nu are parte de socul de impact care a dus la deformarea vagonului din care se filma. Deci, cum s-a filmat si cit de reala este filmarea?

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Weight: 368,000 lbs