Noun. 1. set theory-the branch of pure mathematics that deals with the nature and relations of sets. math, mathematics, maths-a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement.
Long drive is a competitive sport where success is derived by hitting a golf ball the farthest by driving. A small but dedicated talent base of golfers populate the world of Long-Drive, with the top talent competing professionally in various events and exhibitions.ong drive clubs, which are always drivers, are different in many ways from consumer clubs. Until the recent club length limitation rules, the shafts were much longer than a normal 45 in (114.3 cm) shaft, sometimes exceeding 55 in (139.7 cm).
Bubba Watson is known for some pretty long drives, but this is easily his longest of the year. During the third round of the WGC-Bridgestone Invitational on Saturday, Watson hit a 424-yard drive, the longest drive of the 2014 PGA Tour by 27 yards. You can see a video of the drive above. It's not Watson's first monster tee shot in this tournament, either.