Fluid Dynamics, Rotation and Surviving Dangerous Whirlpools

Are big whirlpools dangerous? - Quora

Whirlpools: Formation and Facts about Whirlpools

Dual vortex breakdown in a two-fluid whirlpool

Are big whirlpools dangerous? - Quora

The water in the vortex turns faster and faster - a Royalty Free

Gravity Portals May Turn Dark Matter Bright

Dual vortex breakdown in a two-fluid whirlpool

Rip Currents - ScienceDirect

What Causes Whirlpools – MyWaterEarth&Sky

Whirlpool - Wikipedia

Dark Energy vs. Dark Matter: What's the Difference?