Michael Morpurgo, author. A child needs to feel from the very start that she or he is wanted and loved. They should grow up in the soil of affection of care. There is no replacement for that, it is the most important thing.
American bugler in the Navy, 1917. The bugle is a very simple brass instrument. It has no valves or other mechanisms, the only way the player has to control the pitch is changing the shape of his lips. This means that only notes from the harmonic series can be played.
A valve is a device that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure. The word is derived from the Latin valva, the moving part of a door, in turn from volvere, to turn, roll. The simplest, and very ancient, valve is simply a freely hinged flap which drops to