Billiards is not currently an Olympic sport. However, the ultimate goal of the World Confederation of Billiards Sports (WCBS) is to have billiards included in the Olympic Games. The WCBS applied for inclusion in the 2004 Summer Olympics, but after some consideration, the Greek Olympic Committee ultimately decided against them.
It can be both.
If you are playing a sport for a team. Then you are doing a sport.
If you just sitting on your sofa, you are watching a sport.
In billiards there are only 3 balls, 2 white 1 red.
In billiards the corner pocket means an opening in the billiards table into which the balls are struck into. There are also side pockets. the idea is to get the balls in to the pockets.
There are lots of sites online that have free web-based snooker games, such as Gamesative, BGames and PlayFG. There are also some on popular PC game platform Steam.
I have known sets to last 10 years. Professionals would not keep them this long though. More likely they would be kept 1 year and then given away.
A jump break cue is a cue that billiard players use to break with and also the same cue breaks down into a jump cue. Traditionally, a break cue is a heavier cue that has a stiff shaft to transfer power from the player to the cue and ultimately to the racked balls on the other side of the table. There is a notion that a thinner shaft will give a "whip" action. this "whip action ismilliseconds after the hit on the cue ball, the shaft is temporally deformed and in another couple milliseconds, the shaft violently returns back to its original straight form. The violent return to its original form is the whip action.
The jump portion of the cue is the shaft and the front prong (front 12" of cue behind the shaft and before the handle of the cue) of the cue that separates from the rest of the cue.
Legal jumps in billiards are strikes on the upper half of the cue ball. The action of the cue ball is pressed down onto the table and as a reaction, the cue ball squirts in an upward motion leaving the table surface.
Jump cues need to be light in weight as to make contact with the cue ball and be off of the it so the milliseconds it takes for the cue ball to respond, it won't be restricted by a jump cue that is still in the way of the cue ball's jump.