F4-42: SMOKE RINGS USING GARBAGE CAN
- ID Code: F4-42
- Purpose: Create large smoke rings and illustrate the circular vortex.
- Description: Fill the garbage can with smoke from the electronic fog machine; it takes a few minutes for the machine to warm up before it can produce good fog. To create giant smoke rings, aim the can and tap the rubber membrane covering the lid opening.
- Availability: Limited - due to the failure of our smoke machine, this demonstration is not currently recommended. Consider F4-41 instead.
- References: http://www.physics.umd.edu/deptinfo/facilities/lecdem/services/refs/refsf.htm#F4-42
- Videos-1: http://amasci.com/wing/smring.html
- Videos-2: https://www.youtube.com/watch?v=DsLMVaz1tnQ