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Newly discovered ocean plume could be major source of iron

By Guest PostAugust 20, 2013Environmentabigail noble, atmospheric carbon dioxide, brazil, carbon cycle, carl lamborg, chad hammerschmidt, climate, cloud of nutrients, coffee mug, earth crust, fissure, growth of phytoplankton, gyre, helium, hydrothermal vents, iron flux, mak saito, mantle, mid atlantic ridge, mid atlantic vents, namibia, ocean plume, pacific ocean, rv knorr, seawater samples, source of iron, south atlantic ocean, tyler goepfert, uk, university of liverpool, whoi researchers

Study reveals micronutrient riches rising from the Southern Mid-Atlantic Ridge

Scientists have discovered a vast plume of iron and other micronutrients more than 1,000 km long billowing from hydrothermal vents in the South Atlantic Ocean. The finding, soon to be published in the journal Nature Geoscience, calls past estimates of iron abundances into question, and may challenge researchers’ assumptions about iron sources in the world’s seas.

“This study and other studies like it are going to force the scientific community to reevaluate how much iron is really being contributed by hydrothermal vents and to increase those estimates, and that has implications for not only iron geochemistry but a number of other disciplines as well,” says Mak Saito, a WHOI associate scientist and lead author of the study. (more…)

Mug Handles Could Help Hot Plasma Give Lower-Cost, Controllable Fusion Energy

By Guest PostOctober 12, 2012Scienceaaron hossack, association, asymmetric current, atomic energy, atoms, brian nelson, brian victor, chris hansen, cihan ackay, coffee mug, core, david ennis, efficient alternative, electromagnetic waves, energy source, equilibrium, france, fusion power, fusion reactor, george marklin, helicity injection, high frequency, hydrogen ions, international, kyle morgan, magnetic bottle, magnetic fields, nathaniel hicks, nuclear fission, nuclear power, plasma, prototype, radioactive waste, reactor, roger smith, san diego, shutdown, thomas jarboe, university, Washington

Researchers around the world are working on an efficient, reliable way to contain the plasma used in fusion reactors, potentially bringing down the cost of this promising but technically elusive energy source. A new finding from the University of Washington could help contain and stabilize the plasma using as little as 1 percent of the energy required by current methods.

“All of a sudden the current energy goes from being almost too much to almost negligible,” said lead author Thomas Jarboe, a UW professor of aeronautics and astronautics. He presents the findings this week at the International Atomic Energy Association’s 24^th annual Fusion Energy Conference in San Diego. (more…)

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Newly discovered ocean plume could be major source of iron

Mug Handles Could Help Hot Plasma Give Lower-Cost, Controllable Fusion Energy