Step 1: Parts of the Tornado Model
Step 2: Assemble Tornado Chamber Base
Step 3: Attach Light to Chamber Top Panel
Note the bulb face is flush with the top of the chamber panel. The hole for the clamp of the light fixture is also made flush with the top of the chamber panel by adding another piece of duct tape to the base of the hole.
Step 4: Position and Test Humidifier
Step 5: Assemble Tornado Chamber
Step 6: Operation of This Old Tornado
Other tricks and effects:
Interacting with the tornado by inserting your hand in one of the air intakes (watch out not to topple the chamber as in this design there is nothing holding the top on):
Interacting by blowing gently in an air intake:
Disturbing the vortex in this way makes the air flow more like what happens with a real tornado. The air is rarely totally still and many of the interesting twists are caused by slight disturbances in the air entering the vortex.