Fc-1 Ping pong ball in air stream
Published: Monday 13 March 2006 - Updated: Tuesday 29 March 2011
Aim
To Demonstrate how airflow can cause floatation.
Apparatus
- Ping pong ball
- Vacuum cleaner blower
- Variac
Diagrams
Click on pictures to enlarge.
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Ping Pong Ball in Air Stream (Vertical) |
Ping Pong Ball in Air Stream (Angled) |
Ping pong Ball Diagram |
Videos
Ping Pong Ball In Air Stream |
Description
The ping pong ball is carefully released into the vertical air stream obtained from the outlet end of a vacuum cleaner at a distance of approximately 30 cm from the hose. By slowly tilting the hose outlet the ball can remain suspended to an angle of about 30°.
It is also fun to replace the ping pong ball with a large light beach ball or large balloon. The distances are magnified and the spinning ball is visually appealing