Improvement of recycling is always of high Rockhouse interest. To satisfy Indian law, we must leave no trace so get that way.
Science Daily: Recovering critical, economically important metals from low-grade ores and waste
The METGROW+ project concerns the recovery of economically important metals such as nickel, cobalt, zinc and copper, as well as critical metals like indium, gallium, germanium and chromium. The research involves the development and combination of pyro-, hydro-, solvo-, electro-, iono- and biohydrometallurgical unit operations.
The project also involves the development of techniques for utilising the material remaining after the metal recovery process, for example as a raw material in the construction industry. The goal is a waste-free approach, for which information being created to assist companies with decision-making.
Utilising the entire waste stream will also reduce environmental problems.
"The findings highlight the difficulty of establishing with certainty the effect of major developments before they occur," says Fiona Mathews of the University of Exeter, UK. "This is a real problem for the planning system. In most countries, the system of Environmental Impact Assessment is based on the assumption that accurate assessment of risks can be made in advance and so appropriate steps [can be] taken to avoid any adverse effects -- or if the bad effects cannot be mitigated, then the development should not be permitted to go ahead. Our work highlights that this can be difficult to achieve in practice, as animals do not always behave the way we might anticipate."
Up to now, the speed record for horizontal flight was held by birds from the swift family: the common swift, for example, can reach speeds of over 100 kilometers per hour. Together with colleagues from the USA, researchers at the Max Planck Institute for Ornithology in Radolfzell have now discovered a new front-runner among the acrobats of the air. However, the animal involved here is not a bird but a bat: the Brazilian free-tailed bat shoots through the night skies at over 160 kilometers per hour. Their aerodynamic body shape and longer than average wings compared to other bat species enable them to reach such vast speeds.
That's the conclusion of a new multi-institutional study led by a scientist from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab). It's based on extensive ground and atmospheric observations of CO2, satellite measurements of vegetation, and computer modeling. The research is published online Nov. 8 in the journal Nature Communications.
Science Daily: Recovering critical, economically important metals from low-grade ores and waste
The METGROW+ project concerns the recovery of economically important metals such as nickel, cobalt, zinc and copper, as well as critical metals like indium, gallium, germanium and chromium. The research involves the development and combination of pyro-, hydro-, solvo-, electro-, iono- and biohydrometallurgical unit operations.
The project also involves the development of techniques for utilising the material remaining after the metal recovery process, for example as a raw material in the construction industry. The goal is a waste-free approach, for which information being created to assist companies with decision-making.
Utilising the entire waste stream will also reduce environmental problems.
- Science Daily
The 'collateral damage' due to wind turbines is not acceptable.
Science Daily: Bat fatalities at wind farms prove unpredictable
- Science Daily
A Brazilian Bat has the new speed record for flight. The Peregrine Falcon has the fastest air speed but that's in a head-down dive. The bat hits 160 kph in level flight so, uh, catch me if you can.
- Science Daily
We know plants suck up carbon dioxide but research shows they're sucking up more of it for obvious benefit in the context of climate change.
New findings suggest the rate at which CO2 is accumulating in the atmosphere has plateaued in recent years because Earth's vegetation is grabbing more carbon from the air than in previous decades.
That's the conclusion of a new multi-institutional study led by a scientist from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab). It's based on extensive ground and atmospheric observations of CO2, satellite measurements of vegetation, and computer modeling. The research is published online Nov. 8 in the journal Nature Communications.
- Science Daily
Since you have come down this far in the article, you must be looking for maximal strangeness and these next you may find satisfactory.
What would happen if an electric current no longer flowed, but trickled instead? This was the question investigated by researchers working with Christian Ast at the Max Planck Institute for Solid State Research. Their investigation involved cooling their scanning tunneling microscope down to a fifteen thousandth of a degree above absolute zero. At these extremely low temperatures, the electrons reveal their quantum nature. The electric current is therefore a granular medium, consisting of individual particles. The electrons trickle through a conductor like grains of sand in an hourglass, a phenomenon that can be explained with the aid of quantum electrodynamics.
Their findings, reported in a paper to be published in the journal Nature Photonics, lay the groundwork for developing a new type of integrated device with the flexibility to operate as a laser, an amplifier, a modulator, and an absorber or detector.
"In a single optical cavity we achieved both coherent light amplification and absorption at the same frequency, a counterintuitive phenomenon because these two states fundamentally contradict each other," said study principal investigator Xiang Zhang, senior faculty scientist at Berkeley Lab's Materials Sciences Division. "This is important for high-speed modulation of light pulses in optical communication."
Behavior of electrons at near-absolute zero temperature is for all the physics quantumness you have at your disposal.
Science Daily: Trickling electrons: Close to absolute zero, the particles exhibit their quantum nature
- Science Daily
Who knew there even was such a thing as an anti-laser.
Science Daily: We gather here today to join lasers and anti-lasers
Scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have for the first time created a single device that acts as both a laser and an anti-laser, and they demonstrated these two opposite functions at a frequency within the telecommunications band.
Their findings, reported in a paper to be published in the journal Nature Photonics, lay the groundwork for developing a new type of integrated device with the flexibility to operate as a laser, an amplifier, a modulator, and an absorber or detector.
"In a single optical cavity we achieved both coherent light amplification and absorption at the same frequency, a counterintuitive phenomenon because these two states fundamentally contradict each other," said study principal investigator Xiang Zhang, senior faculty scientist at Berkeley Lab's Materials Sciences Division. "This is important for high-speed modulation of light pulses in optical communication."
- Science Daily
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