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POPSCold Fusion is Hot again (CBS) 60 Minutes wondered what Richard Garwin would think of the Defense Department's appraisal. "The experiments leave 'no doubt that anomalous, excess heat is produced,'" Pelley told Garwin. Watch the video !
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POPSDark Energy’s Effects Clearly Seen For The First Time
The X-ray results combined with supernovas information has given astronomers the best data so far about dark energy properties and it clearly shows that dark energy exists and it’s a cosmological constant. However, this raises another debate as scientists believe now that hidden dimensions really exist. “Putting all of this data together gives us the strongest evidence yet that dark energy is the cosmological constant, or in other words, that ‘nothing weighs something’. A lot more testing is needed, but so far Einstein’s theory is looking as good as ever,” added Vikhlinin. Ultimately, the astronomers predicted the destiny of the Universe that will continue to accelerate and expand which means that the Milky Way and the Andromeda galaxies will never merge with the Virgo galaxy clusters. In conclusion, the astronomers believe that about 100 billion years from now, we will not be able to see other galaxies from the Milky Way, and many other galaxy clusters will eventually decompose.
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POPSWhy Life Originated (And Why it Continues) Although the researchers don’t speculate on the specific chemical reactions that created life, they explain that the molecules involved most likely underwent a series of more and more complex reactions to minimize mutual energy differences between matter on Earth and with respect to high-energy radiation from Sun. The process eventually advanced so far that it cumulated into such sophisticated functional structures that could be called living. The researchers considered a primordial pool that contained some basic compounds. By reacting with one another and coupling with an external energy source such as the Sun, the compounds formed a chemical system. The compounds continually engaged in chemical reactions, thriving the most when capturing and distributing more and more of the Sun’s energy in the quest for a steady state. The evolutionary process was and still is non-deterministic, even chaotic, since the energy flows create energy differences that in turn affect the flows.
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POPSThe Future of Transportation Electric. Very interesting vision. Aggasi’s plan to electrify the private transportation system is nothing short of ingenious. It is a win-win game for governments, car owners, for the environment, for the economy and for Aggasi’s company. True many details must be worked out properly for such a deep change to take place. But it seems entirely within reach. Read the rest here
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POPSPlumbing the oceans could bring limitless clean energy Now rising fuel costs have revived interest in this neglected technology. In September, the Department of Energy awarded its first grant for ocean thermal energy in more than a decade, giving Lockheed Martin $600,000 to develop a new generation of cold water pipes.
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POPSSun + Water = Fuel Michael Grätzel, however, may have a clever way to turn Nocera's discovery to practical use. A professor of chemistry and chemical engineering at the École Polytechnique Fédérale in Lausanne, Switzerland, he was one of the first people Nocera told about his new catalyst. "He was so excited," Grätzel says. "He took me to a restaurant and bought a tremendously expensive bottle of wine." In 1991, Grätzel invented a promising new type of solar cell. It uses a dye containing ruthenium, which acts much like the chlorophyll in a plant, absorbing light and releasing electrons. In Grätzel's solar cell, however, the electrons don't set off a water-splitting reaction. Instead, they're collected by a film of titanium dioxide and directed through an external circuit, generating electricity. Grätzel now thinks that he can integrate his solar cell and Nocera's catalyst into a single device that captures the energy from sunlight and uses it to split water.
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POPSBlackLight Power: A new energy breakthrough ? This seems to be a conceptual breakthrough in energy production, as it yields an energy from a process just between chemical and nuclear. If this method carries any water, it is about to change the world as we know it. I do not have enough physics to fully understand the process, but the guys seem to know what they are talking about. If anybody with enough physics degrees to understand it, can say a word about the process' plausibility I would be thankful
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POPSWaste From Gut Bacteria Helps Host Control Weight Humans, like other animals, have a large and varied population of beneficial bacteria that live in the intestines. The bacteria break up large molecules that the host cannot digest. The host in turn absorbs many of the resulting small molecules for energy and nutrients. "The number of bacteria in our gut far exceeds the total number of cells in our bodies," said Dr. Yanagisawa. "It's truly a mutually beneficial relationship. We provide the bacteria with food, and in return they supply energy and nutrients," he explained.
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POPSCopernican principle re-examined: We might be living in a giant cosmic bubble Clifton, along with Oxford researchers Pedro G. Ferreira and Kate Land, say that in coming years we may be able to distinguish between dark energy and the void. They point to the upcoming Joint Dark Energy Mission, planned by NASA and the U.S. Department of Energy to launch in 2014 or 2015. The satellite aims to measure the expansion of the universe precisely by observing about 2,300 supernovae. The scientists suggest that by looking at a large number of supernovae in a certain region of the universe, they should be able to tell whether the objects are really accelerating away, or if their light is merely being distorted in a void.
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POPSLong-distance demonstration of solar-powered wireless power transmission achieved In the longer term, with sufficient investments in space infrastructure, space solar power can be built from materials from space. The full environmental benefits of space solar power derive from doing most of the work outside of Earth's biosphere. With materials extraction from the Moon or near-Earth asteroids, and space-based manufacture of components, space solar power would have essentially zero terrestrial environmental impact. Only the energy receivers need be built on Earth.
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POPSFuture for clean energy lies in 'big bang' of evolution For humans now there is the tantalising possibility of tweaking the photosynthetic reactions of cyanobacteria to produce fuels we want such as hydrogen, alcohols or even hydrocarbons, rather than carbohydrates. Progress at the research level has been rapid, boosting prospects of harnessing photosynthesis not just for energy but also for manufacturing valuable compounds for the chemical and biotechnology industries. Such research is running on two tracks, one aimed at genetically engineering real plants and cyanobacteria to yield the products we want, and the other to mimic their processes in artificial photosynthetic systems built with human-made components. Both approaches hold great promise and will be pursued in parallel, as was discussed at a recent workshop focusing on the photosynthetic reaction centres of cyanobacteria, organised by the European Science Foundation (ESF).
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POPSNano-Solar Power -Will it Be the Next Revolutionary Technology? Not that the technology is perfect. The system can absorb energy very well, but that's no good to anyone until they work out a way to harvest it from the sheet - when you're dealing with a hyper-complex web of millions of units oscillating at trillions of cycles per second, you can't just solder copper wires to the ends and call them plus and minus. This isn't a mistake or a weakness in the concept though; it's an issue because no-one has ever done this before. You know, the kind of thing that happens with cutting edge invention.
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POPSString Theory Faster-Than-Light Drive Proposed Dreams of interstellar travel may need to be put on hold for the moment, however. Cleaver and Obousy estimate that the amount of energy needed to influence the extra dimension is equivalent to the entire mass of Jupiter being converted into pure energy for a ship measuring roughly 10 meters by 10 meters by 10 meters. "That is an enormous amount of energy," Cleaver said. "We are still a very long ways off before we could create something to harness that type of energy." But what if we could make ourselves very very small??? I am ready to squeeze myself quite a bit to get really far... :-)
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POPSKites could provide electricity for 100,000 homes Several other scientists are investigating the use of kites to harness energy from the wind - which some researchers estimate provides more than 100 times the amount required to power the entire planet. In 2007, Google´s philanthropic arm invested about $10 million in a US kite company called Makani. An Italian company called Kitegen has a multi-kite scheme that could generate a gigawatt of power, as much as a standard coal plant.
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POPSBreakthrough in Solar Energy: Scientists mimic plants' energy storage system 'GIANT LEAP' FOR CLEAN ENERGY Sunlight has the greatest potential of any power source to solve the world's energy problems, said Nocera. In one hour, enough sunlight strikes the Earth to provide the entire planet's energy needs for one year. James Barber, a leader in the study of photosynthesis who was not involved in this research, called the discovery by Nocera and Kanan a "giant leap" toward generating clean, carbon-free energy on a massive scale. "This is a major discovery with enormous implications for the future prosperity of humankind," said Barber, the Ernst Chain Professor of Biochemistry at Imperial College London. "The importance of their discovery cannot be overstated since it opens up the door for developing new technologies for energy production thus reducing our dependence for fossil fuels and addressing the global climate change problem."
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POPSMicropbes Under Sea Floor Shows Possibility of Alien Life However, this population lives at an unusual rate. Single-celled organisms usually consume food for energy and then rather than grow larger, simply divide and reproduce themselves. While the Bacteria Escherichia Coli, as an example, doubles its numbers every 20 minutes, these Archaea double on the order of hundreds or thousands of years and consume very little energy. "In essence, these microbes are almost, practically dead by our normal standards," says House. "They metabolize a little, but not much." According to House, organisms metabolizing at such slow rates is what we could expect to find in other areas of our solar system because such environments have much less energy available than on Earth. Perhaps, similar organisms may be in hydrothermal vents beneath the ice of Europa -- the second moon of Jupiter -- or in subsurface aquifers of Mars.
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POPS0.3% of Saharan Sun Enough To Power Europe The visionary proposal comes as the Joint Research Centre of the European Commission released its strategic energy technology plan which highlighted photovoltaic cells as one of the eight technologies that need to be developed in the future. The plan also includes fuel cells, hydrogen, clean coal, second generation biofuels, nuclear fusion, wind and smart grids.
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POPSIs a 'Dark Force' Pushing the Universe Apart? Astronomers now recognize that the eventual fate of the universe is inextricably tied to the presence of dark energy and dark matter.The current standard model for cosmology describes a universe that is 70 percent dark energy, 25 percent dark matter, and only 5 percent normal matter.
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POPSThe Atomic Age Enters a New Dawn Current nuclear technology is still suffering from problems of safety and waste management. The forced economic investment in nuclear power at present, is diverging present and future resources from finding cleaner and safer solutions.
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POPSPaper Bags or Plastic Bags? Everything You Need to Know So, while it's good to have the alternative (and to recognize the innovation it represents), bioplastics aren't quite ready to save us from the paper or plastic debate. Paper bags or plastic bags: the conclusion Both paper and plastic bags require lots and lots of resources and energy, and proper recycling requires due diligence from both consumer and municipal waste collector or private recycling company, so there are a lot of variables that can lead to low recycling rates. Ultimately, neither paper nor plastic bags are the best choice; we think choosing reusable canvas bags instead is the way to go. From an energy standpoint, according to this Australian study, canvas bags are 14 times better than plastic bags and 39 times better than paper bags, assuming that canvas bags get a good workout and are used 500 times during their life cycle. Happy shopping!
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POPSA Giant Solar Tower Could Power the Future On a sunny day, the air at the top of the tower would be 70 degrees Fahrenheit (20 degrees Celsius), whereas the air in the greenhouse could reach 160 degrees Fahrenheit (70 degrees Celsius). As this hot air escapes up the tower at 34 mph (15 meters per second), it spins 32 turbines that generate up to 200 megawatts of electricity. Even with all this power, the solar tower is less than one tenth as efficient as solar cells in converting the sun's energy into electricity. The advantage for a solar tower is that its materials are much less expensive.
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POPSIs Helium 3 Exploitation China's Hidden Lunar Agenda? UN Treaties in place state that the moon and its minerals are the common heritage of mankind, so the quest to use Helium-3 as an energy source would likely demand joint international co-operation. Hopefully, exploitation of the moon's resources will be viewed as a solution for the world, rather than an out-moded nation-state solution.
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