Children's Science Electric Tornado Experimental Toy Primary School Science and Technology Small Production Materials DIY Assembly Popular Science Equipment

Finished-size: 19.3*20.5

                                                                tornado Formation
tornadoes are the product of thunderstorms in clouds. Generated in the thunderstorm cloud with strong development, the temperature difference between the upper and lower is very different: The ground temperature is more than 20 degrees Celsius; At the bottom of the thunderstorm cloud, the temperature drops to more than ten degrees, to the altitude of four thousand meters, the temperature drops to 0 degrees Celsius, at an altitude of eight thousand meters, the temperature dropped to minus thirty degrees. In this way, the cold air drops rapidly and the hot air rises violently, forming many small vortices. Before these small vortices have not been developed, they often EARTHRISE to the bottom of the cloud in groups and stretch out to rotate and roll. A large Whirlpool is formed only when the up and down agitation is very strong-tornado. Tornadoes usually occur in summer and come along with the strong thunderstorm and rain clouds.
Specifically, tornado is a form of concentrated release of a small part of the huge energy of thunderstorm in a small area. Tornado formation can be divided into four stages:
(1) atmospheric instability produces strong updraft, which is further strengthened due to the influence of transit airflow in jet stream.

(2) due to the interaction with the wind with shear velocity and direction in the vertical direction, the updraft begins to rotate in the middle of the tropopause, forming a mesophile cyclone.

(3) with the development and upward extension of mesometre air rotation to the ground, it becomes thinner and strengthens itself. At the same time, a small-area enhancement and auxiliary combination, that is, the primary tornado is formed inside the cyclone, and the same process of generating the cyclone forms the core of the tornado.

(4) the rotation in the core of the scroll is different from that in the cyclone, and its strength is enough to stretch the scroll to the ground. When the developed vortex reaches the ground height, the ground pressure drops sharply, and the ground wind speed rises sharply, forming a dragon roll.