Saturday, September 26, 2009

Sangath 3 - Bubbles


Following on from our last post regarding Frei Otto, we decided to look into making bubbles a bit more. The reasons behind this will become clear in our redesign model! But in a nutshell, we are having a tent like structure... and the best way to model a tensioned surface is with a bubble (we think).
The chemistry behind bubbles is a bit interesting, here are a few recipes that we will be trying out. What we need is long lasting, strong bubbles.



2/3 cup Joy dishwashing soap
1 gallon (3.7L, 16cups) water
2 to 3 tablespoons of glycerine (available at the pharmacy or chemical supply house.)
Mix slowly, let sit overnight

Long life bubbles:
1/3 cup commercial bubble solution
1/3 cup water
1/3 cup glycerine
Let sit overnight
The person who submitted this recipe has had her bubble in a jar for 3months and counting

Source: http://www.exploratorium.edu/ronh/bubbles/formulae.html


Super Bubbles:
2 parts dishwashing detergent
4 parts glycerine
1 part white karo syrup

Source: http://www.bubbles.org/html/solutions/formulae.htm


Colourful Bubbles:
1/3 cup dishwashing detergent
1.5 cups warm distilled water
2 tablespoons refined sugar
1 teaspoon food colouring
1 teaspoon white karo syrup

Source: http://www.modnet.com.au/~firefrog/bubbles.htm


A ten year olds bubble experiment, which basically concluded to use glycerine: http://home.earthlink.net/~tammyglaser798/bubbles.html

These bubbles a bit too fancy pants for us… but you make the mixture on the stove… blow the bubble while hot… and it will set hard! http://www.sciencefairadventure.com/ProjectDetail.aspx?ProjectID=131

Why this is important will hopefully be revealed in a post in the coming days… and also bubbles are just fun!

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