Krissy Worth & John Krekelberg with Hands On! Discovery Center, showed us how to make a tornado in a bottle and a fire tornado using ordinary household items! Please take a moment and watch the video ...
This photo shows the upper part of the water tornado model. The acrylic glas tank has a diameter of 50 centimetres and is illuminated with LED strips. The water forms a vortex whose surface shape ...
The U.S. National Weather Service forecasts tornado outbreaks—often days in advance—and issues the watches and warnings that help people know when and how to prepare and when to take cover. NWS ...
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