They basically sprayed a 2cm metal ball with this https://youtu.be/IPM8OR6W6WE
And then dropped the ball from a certain height into a pool of water. The spray was so good at repelling water that it created a boundary between the water and the ball. This caused the metal ball to have zero drag. Decrease in drag is key and will lead to new advancements in hydrodynamics.
*"what if you reduce drag by 1000 per cent ?"* Does that make any sense ? How can you reduce more than 100% ?
> what if you reduce drag by 1000 per cent
Getting a bit carried away there.
Is anyone else having trouble opening the article/site on mobile?