Each of the three intervention studies has spawned a series of publications over decades.
What if that pitcher just has natural movement on his fastball?" One aspect of the curveball debate, and the studies it has spawned, that everyone agrees on is that throwing too many pitches of any type is the biggest danger.
The study of the Olympics has spawned consultancies, academic research centres, conferences and university courses.
The success of the U.S. crustal studies program has spawned a series of similar efforts in Australia, Canada, Europe, India, the Tibet Autonomous Region of China, and elsewhere, and seismic investigation of the continental crust continues to be one of the most active areas of basic exploration.
More recently, the wide use of functional neuroimaging to study the human brain has spawned an entire industry around studies of resting-state activity (Bartlett et al., 1987; Biswal et al., 1995; Lowe et al., 1998; Greicius et al., 2003).
This is the paradox of Blunkett's style: the plain-speaking Yorkshireman, who, to "cut the crap", has spawned dozens of studies, standards and directives that complicate the workings of the forces he aims to simplify.
The speculation has spawned a new discipline: Martology.
The Bradley Effect has spawned the Bradley Effect Effect -- tedium.
The discrepancy has spawned lawsuits.
The Internet has spawned many tales.
