Wood the growth of the young timber in open stands after the old trees have been removed is more rapid than in trees in a closed forest, and in the manufacture of articles where strength is an important consideration such "second-growth" hardwood material is preferred. This is particularly the case in the choice of hickory for handles and spokes. Here not only strength, but toughness and resilience are important. The results of a series of tests on hickory by the U.S. Forest Service show that: The effect of rate of growth on the qualities of chestnut wood is summarized by the
Steering wheel into the more compact space available. The number of spokes in the steering wheel has continuously changed. Most early cars had four-spoke steering wheels. A Banjo Steering Wheel was an option on many early automobiles. Banjo Wheels predate power steering. The wire spokes were a buffer or absorber between the driver's hands and the drum of the road. Most were 3 or 4 spokes made of four or five wires in each spoke, hence the name "Banjo". The steering wheel should be used with strategic movements of the hand and wrist in spinning motions. Caution and care should be used