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The Tornado Tube is a device made of molded plastic that can be used to connect two two-liter soda bottles. When one of the bottles is filled with liquid and the two bottles are connected with a Tornado Tube, they may be used as a children's educational toy demonstrating a vortex.
Blue bottle reaction video. The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose ...
Strong mesocyclones show up as adjacent areas of yellow and blue (on other radars, bright red and bright green), and usually indicate an imminent or occurring tornado. The history of tornado research spans back centuries, with the earliest documented tornado occurring in 200 and academic studies on them starting in the 18th century. This is a ...
As the cyclone is essentially a two phase particle-fluid system, fluid mechanics and particle transport equations can be used to describe the behaviour of a cyclone. The air in a cyclone is initially introduced tangentially into the cyclone with an inlet velocity . Assuming that the particle is spherical, a simple analysis to calculate critical ...
A tropical cyclone usually develops a distinct eye when the maximum sustained winds of the storm reach and exceed 74 mph. A well-formed eye is a good indicator of overall intensity due to an increase in rotational velocity when the distance between the moving particles and the center of the vortex is decreased.
#15 Bottle Emptying Cap Kit: Get Every Last Drop, Because We're Not Made Of Money! Review: "I've been frustrated with the amount of lotion left behind in lotion pump bottles.
They confirmed that the bottle had been dropped as part of an experiment by the German Naval Observatory (Deutsche Seewarte) to determine ocean currents. [5] The bottle and its message were analysed and found to be authentic to the period. The hand-made bottle had originally contained jenever and had come from Schiedam, South Holland, Netherlands.
The experiment requires a large water-filled bottle, inside which is a "diver": a small, rigid tube, open at one end, very similar to an eyedropper with just enough air so that it is nearly neutrally buoyant, but still buoyant enough that it floats at the top while being almost completely submerged. Two alternative "divers" can be constructed.