What is the sound of one piston slapping?
What is the sound of one piston slapping?

I know there is at least one of you here. doing a science expirement with my 6 year and her goal Is to find a formulation for the longest lasting bubble. We’ve got and old book and the internet but any tips or sources would helpful.

Illustration for article titled Calling soap engineers
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Have a Columbian Toyota burbuja (bubble) for your time.

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