2A Surface Tension

Soap Bubble Recipes

Catalog: 
2A15.01
Location: 
These are the top 12 solutions compiled by Dale Stille, University of Iowa: 1. My Stock Solution: - 70 ml Joy - 20 ml Glycerine - 230 ml H20 - 115 ml Miracle Bubble 2. Charles Windsor Solution: - 70 ml Joy or Ivory - 230 ml Distilled H20 - 20 ml Glycerine 3. Recipe Three - 1 part Glycerine - 2 parts Soap - 3 parts Water - 3 parts Wonder Bubble 4. Recipe Four - Use 8 oz of Wonder Bubble - Add 1-2 oz of Joy - Add 1-2 oz of Glycerine 5. Recipe Five - Equal parts - Joy, Glycerine, & Water 6. Recipe Six - 1 part Glycerine - 2 parts Soap - 3 parts Water

Floating Metals

Catalog: 
2A10.20
Location: 
9-1
Paper clips and razor blades float on the surface of water due to the surface tension. Add a very small amount of dish detergent to the water and the surface tension is greatly reduced and the objects sink.

Needle Through Balloon

Needle is completely through the balloon.
Catalog: 
2A10.150
Location: 
Ae5
A long needle is poked through a balloon.

Soap Film Minimal Surfaces - Video

demonstration image
Catalog: 
2A15.20
Location: 
3_1
Video Encyclopedia :A pyramid, cube, and triangular prism.