Astronomy Picture of Day: a Tornado on Earth# Astronomy - 天文
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A Tornado on Planet Earth
Credit: NOAA Photo Library, NOAA Central Library, OAR/ERL/NSSL
Explanation: Large storms on Earth can spawn unusual, small, violent clouds known as
tornadoes. Tornado clouds swirl as fast as hundreds of kilometers per hour and, when they
touch down, can destroy nearly everything in their long, narrow path. Many tornadoes last
only a few minutes, but the largest and most dangerous can endure for hours. The above
image, although somewhat unfocussed, appears to show
Credit: NOAA Photo Library, NOAA Central Library, OAR/ERL/NSSL
Explanation: Large storms on Earth can spawn unusual, small, violent clouds known as
tornadoes. Tornado clouds swirl as fast as hundreds of kilometers per hour and, when they
touch down, can destroy nearly everything in their long, narrow path. Many tornadoes last
only a few minutes, but the largest and most dangerous can endure for hours. The above
image, although somewhat unfocussed, appears to show