2C20 Forces in Moving Fluids

Flying Disk (frisbee)

Catalog: 
2C20.95
Location: 
Af5
Aerobie flying disk

The Depletion Force

demonstration image
Catalog: 
2C25.000
Location: 
1-6
When large objects are ajitated in a mixture of small objects the large objects tend to be attracted together. The large objects create a void that prevents the small objects from striking other objects because the small objects path is blocked by by the large object. As two large objects approach each other they are attracted since the small objects are blocked from knocking the objects away.

Floating ball

demonstration image
Catalog: 
2C20.30B
Location: 
3_1
Video Encyclopedia :A Styrofoam ball is suspended in an air jet from a vacuum cleaner.

Funnel and Ball

Catalog: 
2C20.35
Location: 
Af4
Funnel and a ball (same ball as 2C20.30)

Aerobie Flying Ring

The Aerobie is a type of Frisbee designed to reduce drag and sideways roll.
Catalog: 
2C20.96A
Location: 
Af5
The Aerobie flying ring is designed to reduce drag and sideways roll.

Flying Cylinder

demonstration image
Catalog: 
2C20.96B
Location: 
Af5
A flying cylinder weighing less than an ounce that is thrown like a football.

Lifting Plate

Catalog: 
2C20.40A
Location: 
Af4
A stream of air flowing radially outwards between two plates will lift the lower plate.

Lifting Cylinder

Catalog: 
2C20.420
Location: 
Af4
An air stream flowing over a cylinder causes it to rise.

Curve Ball

Catalog: 
2C20.60A
Location: 
Ae1
Launcher is used to throw light balls with a spin.

Venturi Tube

Catalog: 
2C20.10B
Location: 
Af4
Venturi tube (metal version)- temporarily out of service.