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
John Adams (physicist) University of London, University of Oxford and Imperial College London is named in his honour. A main road ("Route Adams") in CERN's Prevessin site is also named after him. John Adams (physicist) Sir John Bertram Adams (24 May 1920 – 3 March 1984) was an English accelerator physicist and administrator. During World War II, Adams worked in the Radar laboratories of the British Ministry of Aircraft Production where he learned physics and engineering on the job. After the war he moved to Harwell and the Atomic Energy Research Establishment. He had no qualifications but became expert in the design and