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Tuesday, 23 August 2011
Thursday, 11 August 2011
Hybrid Solar System Makes Rooftop Hydrogen
While roofs across the world sport photovoltaic solar panels to convert sunlight into electricity, a Duke University engineer believes a novel hybrid system can wring even more useful energy out of the sun's rays.
This is the hybrid system schematic. (Credit: Nico Hotz)Instead of systems based on standard solar panels, Duke engineer Nico Hotz proposes...
Polar Dinosaur Tracks Open New Trail to Past
Polar Dinosaur Tracks Open New Trail to PastPaleontologists have discovered a group of more than 20 polar dinosaur tracks on the coast of Victoria, Australia, offering a rare glimpse into animal behavior during the last period of pronounced global warming, about 105 million years ago.
Photo of the tracks. (Credit: Anthony Martin)The discovery, reported...
New Eruption Discovered at Undersea Volcano, After Successfully Forecasting the Event
New Eruption Discovered at Undersea Volcano, After Successfully Forecasting the EventA team of scientists just discovered a new eruption of Axial Seamount, an undersea volcano located about 250 miles off the Oregon coast -- and one of the most active and intensely studied seamounts in the world.
The manipulator arm of the ROV Jason prepares to sample...
Study Builds On Plausible Scenario for Origin of Life On Earth
Study Builds On Plausible Scenario for Origin of Life On EarthA relatively simple combination of naturally occurring sugars and amino acids offers a plausible route to the building blocks of life, according to a paper published in Nature Chemistry.
The natural enantiomer of the RNA precursor molecules formed a crystal structure visible to the...
Exotic Quantum Crystal Discovered: Researchers Discover Novel State of Crystal Matter
Nature knows two opposite types of solids: one that emerges upon compression from a liquid and a second that appears if the pressure on a liquid is reduced. While the former is typical for substances in our everyday life the latter occurs for example in a dense quantum liquid of electrons (such as in metals) or ions (in exotic white dwarf or neutron...
Deep Recycling in Earth Faster Than Thought
The recycling of Earth's crust in volcanoes happens much faster than scientists have previously assumed. Rock of the oceanic crust, which sinks deep into the earth due to the movement of tectonic plates, reemerges through volcanic eruptions after around 500 million years. Researchers from the Max Planck Institute for Chemistry in Mainz obtained this...
