This is called tube ice. A tube ice machine is better than a cube ice machine because it's smaller and produces ice faster.
Hollow ice cubes are faster to make and have more surface area in your drink.
Yes, the ice is very thick.
Yes, soda water is typically served with ice.
SERVED ON ICE
Ice cubes can be hollow if they freeze from the outside in, trapping a pocket of unfrozen water at the center that later drains out. This can happen due to impurities or dissolved gases in the water. Rapid freezing or freezing in layers can also result in hollow ice cubes.
Kettles
Because of global warming
A drink served up should be mixed with ice, for example in a cocktail shaker, but then strained so there is no ice in the drink when it is served cold.
whiskey is best served neat or with ice.
David Usher- Airplanes
Cone
cone