Toy designed for older audiences, such as teenagers or adults, demonstrate advanced concepts. Newton's cradle, a desk toy designed by Simon Prebble, demonstrates the conservation of momentum and energy. Not all toys are appropriate for all ages of children. Even some toys which are marketed for a specific age range can even harm the development of children in that range. "Age compression" is a toy industry term that describes the modern trend of children moving through play stages faster than they did in the past. Children have a desire to progress to more complex toys at a faster pace, girls in
Energy Policy and Conservation Act petroleum based fuels was extended through 1977. This mechanism would reduce the use of these fuels for power generation and free them for use by other consumers. Furthermore, the President was given authority to order maximum domestic oil and gas production, and the President was directed to submit plans for energy conservation and energy rationing in case of a fuel shortage. Energy Policy and Conservation Act The Energy Policy and Conservation Act of 1975 (EPCA) () is a United States Act of Congress that responded to the 1973 oil crisis by creating a comprehensive approach to federal energy policy. The