05/07/2011

SEABASED WAVE POWER GENERATOR


Seabased's wave power technology utilizes the water motion in waves to directly drive the wave power plants. The active element is a unique directly driven permanent magnet linear generator. The generator is specially designed to take advantage of the slow movement of the waves that is transferred to it via a buoy (point absorber) on the ocean surface.The buoy action is transferred directly to the generator with no intermediate mechanical gearing since the generator is optimized to output high power even at slow speeds.The movement of the waves (about 15 wave cycles/min) causes the translator (corresponding to the swiftly turning rotor of a conventional generator) to move up and down within the stator, thus converting the kinetic energy of the wave to electric energy. Very powerful neodymium-iron-boron magnets are mounted on the translator. They create an alternating magnetic field which penetrates the stator windings. The stroke length of the translator is limited by end stops at the top and bottom.

22/06/2011

HORNIMAN MUSEUM


VISITING HORNIMAN MUSEUM

Victorian tea trader, collector and public benefactor Frederick John Horniman began collecting specimens and artefacts from around the World in the 1860's. Horniman's key mission was to bring the world to Forest Hill and he opened part of his family house to the public so they could view the riches he had collected. As the collections increased they outgrew the family home and in 1898 Horniman commissioned Charles Harrison Townsend to design a new Museum.


















The original collections comprised natural history specimens, cultural artefacts and musical instruments.