Episode 4: Lenses and Vortices

Science off the Sphere

Astronaut and chemist Dr. Don Pettit does physics demos that are out of this world. Currently on board the International Space Station, Dr. Pettit presents fantastic physics that can only be demonstrated in micro-gravity.


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Challenge Question: How does the viscosity of the fluid influence a vortex?

Challenge Answer: Higher the viscosity, lesser the vortex, as more viscos fluid is, greater is the molecular attraction, that`s why honey will have less vortex producing capacity than water.

Challenge Winner: Subhro Das