A training device for tactually indicating to a player whether the player's hand has properly gripped the handle of a racket for forehanded play and for backhanded play

Investigating why IBM salespeople were so successful, researchers found that IBM set easy targets for their salespeople rather than targets that were difficult to reach and so most of their salespeople achieved their targets. IBM had hired psychologists to define optimum motivational goals for their salespeople and it was discovered that if the targets were achievable the salespeople became very confident and motivated (unlike their demotivated cousins in rival companies) and went out and sold even more computers.

Build a terranium, if you wish. That is, let the boys build it. Don't do the work yourself, for half the interest is in making the thing. Have the boys bring an old berry crate; cut out the slats and take off the top; cover it with fine wire netting […] Put in one or two small plants or shrubs for landscape effect and the terranium is ready. […] Begin on that terranium. […]

to denunciate this new work