Mainly scientists that study tornadoes or tornado watchers
I think you should try there are many video showing how to make a tornado in a bottle. Do the experiment and add the marble in there and see what happen.
Yes. Air moves into the top bottle to replace the volume of water that has flowed into the bottom.
Water would be better. They are both equally effective at forming a vortex, but at least the water won't smell if the bottle leaks.
it is a bottle shape
If you mean a hurricane in a bottle then yes, a hurricane in a bottle and a tornado in a bottle are the same thing. In shape, however, the vortex bears more resemblance to a tornado than a hurricane.
Both the tornado in bottle and a real tornado involve a vortex that strengthens via the principle of conservation of angular momentum.
It doesn't really. A tornado in a bottle provides amusement, but little else.
you spin the bottle fast and stop
Whirlpool
tell me the answer
It is a model.
Does the tornado move faster or slower near the center? If I place beads in the water tornado then I will see them move faster near the vortex because the tornado has faster moving water near the center.