Userewardsystems (star chartsculminating in a lucky dip orfavourite outing) tomotivatepreschoolandschool-agekids, especiallyifthey are getting out ofbedor coming into your bed at night.
Twenty years later, Flamsteed would again obstruct scientific progress by refusing to publish his by now huge amount of accumulated data, in the form of starcharts for the use of sea captains.