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The rainbow on giant soap bubbles shows the film is just a few microns thick
Guar and PEO are polymers - substances made of long chains of repeating molecules
The Emory lab made bubbles and popped them, recording the dynamics
And how long a soap film droplet could stretch before breaking
And aging the polymers 6 months breaks them into different sized strands
Combine heaping teaspoon of guar powder with 3 tablespoons of rubbing alcohol
Mix until there are no clumps
The water should thicken slightly
Stir gently to avoid foaming
And enjoy the physics of giant soap bubbles!