Interactive Science exhibits, ideated and fabricated to inclucate and invigorate the young minds about Science !!
Turn the cylinder upside down and see that the water flows down with difficulty. Now, rotate the cylinder fast. After a few seconds, a funnel shaped cavity is formed at the centre.
What did you observe?
Water starts gushing down.
The science behind it :
Water rotates faster at the periphery than at the centre of cylinder. As a result, centrifugal force act outwards the water column. Consequently, the surface opens up by forming a cavity at the centre. The air from bottom escapes through this cavity and then the water flows down. This cavity at the centre of whirlpool is known as ‘Vortex’.