Santiago Ramón y Cajal Santiago Ramón y Cajal ForMemRS (Spanish: [sanˈtjaɣo raˈmon i kaˈxal]; 1 May 1852 – 18 October 1934) was a Spanish pathologist, histologist, neuroscientist and Nobel laureate. His original pioneering investigations of the microscopic structure of the brain have led him to be designated by many as the father of modern neuroscience. His medical artistry was legendary, and hundreds of his drawings illustrating the delicate arborizations of brain cells are still in use for educational and training purposes. Biography The son of physician and anatomy lecturer Justo Ramón and Antonia Cajal, Ramón y Cajal was born of Aragonese parents in Petilla de Aragón in Navarre, Spain. As a child he was transferred between many different schools because of his poor behavior and anti-authoritarian attitude. Over the summer of 1868, Cajal's father, hoping to interest his son in a medical career, took him to graveyards to find human remains for anatomical study. Works and theories
RadioBlagon Scientific Video Site The 13 Most Important Numbers in the Universe - James D. Steins Cosmic Numbers In the 17th century, scientists understood three phases of matter—solids, liquids and gases (the discovery of plasma, the fourth phase of matter, lay centuries in the future). Back then, solids and liquids were much harder to work with than gases because changes in solids and liquids were difficult to measure with the equipment of the time. So many experimentalists played around with gases to try to deduce fundamental physical laws. Robert Boyle was perhaps the first great experimentalist, and was responsible for what we now consider to be the essence of experimentation: vary one or more parameter, and see how other parameters change in response. It may seem obvious in retrospect, but hindsight, as the physicist Leo Szilard once remarked, is notably more accurate than foresight.
Khan Academy Forestiers par nature : ONF Forestiers par nature : le forestier naturaliste Claude Lagarde est forestier naturaliste à l'ONF : « Nous œuvrons pour pérenniser ces milieux et pour que les espèces qui vivent dans les forêts continuent d’être observées par nos successeurs. » Seen 25209 times Le forestier naturaliste : - réalise des inventaires de la faune et de la flore - participe à la préservation des milieux naturels - échange avec le monde scientifique et associatif. Chaque jour, les femmes et les hommes qui travaillent à l’ONF assurent le renouvellement des forêts publiques, participent au développement de la filière bois, veillent sur la biodiversité et vous accueillent. L'ONF a réalisé une série de portraits de forestiers pour découvrir les différentes facettes de leurs métiers et comprendre comment les forêts publiques sont gérées durablement. Réalisation : SystemTV Back to previous page
｣2.5m Robinson Crusoe-stye island retreat goes up in smoke close to millionaires playground of Sandbanks By Rachel Rickard Straus Published: 14:50 GMT, 20 April 2012 | Updated: 17:10 GMT, 20 April 2012 This is the dramatic moment the Robinson Crusoe-style island retreat of a multimillionaire went up in smoke. The magnificent three-storey timber chalet was nearing completion when the inferno broke out at the empty property this morning. The fire rapidly engulfed the six-bedroom log cabin hideaway, sending flames 40ft into the air above Green Island which is in the middle of Poole Harbour, Dorset. Burning down: Firefighters tackle the enormous flames engulfing the three-storey timber property on Green Island It is just across from the millionaire's playground of Sandbanks, where celebrities such as Tottenham Hotspurs' manager Harry Redknapp enjoy the high life. As the fierce blaze engulfed the remote cabin a dramatic rescue operation was launched. Up in flames: The three-storey timber chalet in Dorset, which was engulfed in fire this morning Mr Iliffe said: ‘I know nothing about the fire.