TIL supercavitation and sonoluminescence

Supercavitation

Supercavitation is the use of cavitation effects to create a bubble of gas inside a liquid large enough to encompass an object travelling through the liquid, greatly reducing the skin friction drag on the object and enabling achievement of very high speeds.

Sonoluminescence

Why the mantis shrimp is my new favorite animal - The OatmealW

Sonoluminescence is the emission of short bursts of light from imploding bubbles in a liquidwhen excited by sound.

[Image links to full comic]Why the mantis shrimp is my new favorite animal - The Oatmeal

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