News tagged with concentrations
Bubble-propelled microrockets could operate in the human stomach
(PhysOrg.com) -- Recently, researchers have been designing a wide variety of self-propelled micromotors, many of which operate using an oxygen-bubble propulsion mechanism that requires a high concentration ...
Jan 18, 2012 |
4.9 / 5 (12) |
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Scientists focus on Salton Sea as possible earthquake risk
(PhysOrg.com) -- In a bit of coincidental news, no sooner had earthquake scientists posted warnings about the instability of the southern part of the San Andreas Fault hidden beneath the Salton Sea, than an ...
Space & Earth / Earth Sciences
Jun 27, 2011 |
4.7 / 5 (9) |
0
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New evidence supports 'Snowball Earth' as trigger for early animal evolution
A team of scientists, led by biogeochemists at the University of California, Riverside, has found new evidence linking "Snowball Earth" glacial events to the rise of early animals.
Space & Earth / Earth Sciences
Oct 27, 2010 |
4.3 / 5 (19) |
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Abu Dhabi to build 'world's largest' solar plant
French oil firm Total and Spain's Abengoa Solar will partner with Abu Dhabi's alternative energy company Masdar to build "the world's largest" concentrated solar power plant, Masdar announced on Wednesday.
Technology / Energy & Green Tech
Jun 09, 2010 |
4.7 / 5 (16) |
12
New solar concentrator design (w/ Video)
A new solar concentrator design from an electrical engineering Ph.D. student at the University of California, San Diego could lead to solar concentrators that are less expensive and require fewer photovoltaic ...
Apr 22, 2010 |
4.1 / 5 (16) |
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A system that's worth its salt: New approach to water desalination could lead to small, portable units
(PhysOrg.com) -- Potable water is often in high demand and short supply following a natural disaster like the Haiti earthquake or Hurricane Katrina. In both of those instances, the disaster zones were near ...
Nanotechnology / Nanomaterials
Mar 21, 2010 |
4.6 / 5 (23) |
6
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Plants Save the Earth from an Icy Doom (w/ Podcast)
(PhysOrg.com) -- Fifty million years ago, the North and South Poles were ice-free and crocodiles roamed the Arctic. Since then, a long-term decrease in the amount of CO2 in the atmosphere has cooled the Earth. ...
Space & Earth / Earth Sciences
Jul 01, 2009 |
3.8 / 5 (9) |
5
Meditation increases brain gray matter
Push-ups, crunches, gyms, personal trainers -- people have many strategies for building bigger muscles and stronger bones. But what can one do to build a bigger brain? Meditate.
Medicine & Health / Neuroscience
May 12, 2009 |
4.4 / 5 (38) |
13
Ancient plant-fungal partnerships reveal how the world became green
Prehistoric plants grown in state-of-the-art growth chambers recreating environmental conditions from more than 400 million years ago have shown scientists from the University of Sheffield how soil dwelling fungi played a ...
May 15, 2012 |
5 / 5 (5) |
2
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Measuring CO2 to fight global warming: Scientists develop way to enforce future greenhouse gas treaty
If the world's nations ever sign a treaty to limit emissions of climate-warming carbon dioxide gas, there may be a way to help verify compliance: a new method developed by scientists from the University of ...
May 14, 2012 |
3.2 / 5 (9) |
6
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CO2 was hidden in the ocean during the Ice Age: study
Why did the atmosphere contain so little carbon dioxide (CO2) during the last Ice Age 20,000 years ago? Why did it rise when the Earth's climate became warmer? Processes in the ocean are responsible for this, says a new study ...
Space & Earth / Earth Sciences
Mar 29, 2012 |
4.5 / 5 (10) |
50
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Sperm can count
The speed at which the calcium concentration in the cell changes controls the swimming behavior of sperm. They can calculate the calcium dynamics and react accordingly.
Mar 07, 2012 |
4 / 5 (1) |
1
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Extreme summer temperatures occur more frequently: study
(PhysOrg.com) -- Extreme summer temperatures are already occurring more frequently in the United States, and will become normal by mid-century if the world continues on a business as usual schedule of emitting ...
Feb 15, 2012 |
3.2 / 5 (21) |
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Thermal storage gets more solar on the grid
(PhysOrg.com) -- It's 4:45 on a sweltering August afternoon, and the rooftop solar panels are starting to lose juice. The sun's lower angles and that huge cottonwood tree are interfering with the efficient ...
Technology / Energy & Green Tech
Feb 15, 2012 |
4.7 / 5 (7) |
6
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Nasa study solves case of Earth's 'missing energy'
(PhysOrg.com) -- Two years ago, scientists at the National Center for Atmospheric Research in Boulder, Colo., released a study claiming that inconsistencies between satellite observations of Earth's heat and ...
Space & Earth / Earth Sciences
Jan 30, 2012 |
4.1 / 5 (14) |
12
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