Showing results for "4" in Engineering

Voici le tome de la mise en œuvre: un parcours complet de la charpente et de la couverture, qui part des origines en bois jusqu’aux combles les plus savants, pour guider du choix des essences au tracé des fermes, des cintres et des toitures selon le climat et l’usage. On y apprend quand couper le bois, comment le sécher, quelles propriétés attendre du chêne, du sapin, du mélèze ou du cèdre, et pourquoi certaines pièces résistent mieux au feu, aux vers ou à l’eau en fondations sur pilotis.

""GRIPPING. ... One of the greatest polar rescue efforts ever mounted."" —Wall Street Journal The riveting true story of the largest polar rescue mission in history: the desperate race to find the survivors of the glamorous Arctic airship Italia, which crashed near the North Pole in 1928...

On 25 May 1982, at a critical juncture in the Falklands War, the destroyer HMS Coventry was attacked by Argentinean aircraft. In a devastating strike, she was hit by three bombs, two of which exploded inside her hull, killing 19 of her crew and leaving many others badly injured. Within minutes Coventry had capsized, and would finally sink the following day. It was the first occasion since the Second World War that a British captain and crew had to abandon a stricken ship.

As fossil fuel prices rise, oil insecurity deepens, and concerns about climate change cast a shadow over the future of coal, a new energy economy is emerging. Wind, solar, and geothermal energy are replacing oil, coal, and natural gas, at a pace and on a scale we could not have imagined even a year ago. For the first time since the Industrial Revolution, we have begun investing in energy sources that can last forever. Plan B 4.0 explores both the nature of this transition to a new energy economy and how it will affect our daily lives.