Bubble Column

Bubble column is a block generated by placing magma block or soul sand on the bottom, other blocks in water. Like air, it cannot be mined.

Obtaining
Bubble columns cannot be obtained as an item, and could only placed by block-placement command such as.

Natural generation
When generating the world, ravines and underwater ruins will be created below the water surface. When having lava there, some lava will be converted to obsidian, some to magma blocks which will generated bubble columns.

Usage
The player can replenish their air supply and when it is moved by piston steady water is generated.

Vortex
Vortex bubble column can be determined by downwards wandering air bubbles and it drag entities downwards. When riding a boat over a vortex the boat starts to shake and is finally sunk when staying over the vortex.

Lifting
Lifting bubble column can be seen on vertically rising air bubbles. When a soul sand is placed on the bottom lifting bubble column is generated. A lifting bubble column draws entities upwards. The longer an object is rising through the bubble column the faster they will go. When the speed is high enough, the object will shoot out of the water. When jumping on a lifting bubble column, the player will be repelled about one block upwards.

Gallery
Blasensäule Colonne de bulles