Archive for April 2013
April 29, 2013– GEOPHYSICS– Think it’s hot on the sun? Well it’s just as hot under your feet, according to new research suggesting the Earth’s core is a scorching mass of iron that’s roughly the same temperature as the sun. Scientists at France’s CEA research agency revealed their new findings Friday in a study published in the journal Science. The Earth is believed to have a solid core, consisting mainly of iron in a crystalline state. Surrounding that solid core is an outer core comprised of scorching-hot liquid. The temperature of the crystalline centre has been the subject of an enduring debate, with scientists unable to agree on how the iron might behave in the intense pressure and heat of that environment. The CEA researchers were able to simulate the phenomenon, however, by compressing a sample of iron in a laser-heated diamond anvil cell — a device…
View original post 194 more words
Last month Cheri took a look at longform writing on WordPress.com, and how tagging your over–1000-word posts WPLongform can help fellow bloggers, readers, and the editors of Freshly Pressed to discover longer, more in-depth material in the WordPress.com Reader. Since then you’ve shared a huge variety of work under the WPLongform tag, and in today’s post, I’d like to take a quick look at a small sample of the work you’ve published.
View original post 698 more words