Natural gas system in US is leaking methane Officials in the United States have underestimated how much methane—a potent greenhouse gas—is leaking from the country’s natural gas system, experts warn. The findings, published in the journal Science, are based on a review of more than 200 earlier studies and confirm that methane emissions are considerably higher than official estimates, including those by the Environmental Protection Agency (EPA). Natural gas consists predominantly of methane. Free Book Search.net Free Book Search's document search tool is designed to return the maximum number of online documents from specific types of websites as per the users' choice. We have made this search portal very robust so that using the tools on this page, if a document exists somewhere - even hidden away - on the Internet, you will find it here. This is one of the only online tools that will actually find books and documents on non-book sites. Most other tools sift through digital libraries or known locations of e-books and documents, our searches also scan private collections that are normally hidden.
the Pattern which Connects from KaliYuga to Tao: Complexity of Tao The definition of complexity of a system is itself complex: several authors in different historical periods in different disciplines have used different definitions. Seth Lloyd ranked in the first 90s at least 32 examples of definitions, including information (Shannon), entropy (Gibbs-Boltzmann), algorithmic complexity, self-delimiting code length, minimum length description, number of parameters, the degrees of freedom or dimensions, mutual information or channel capacity, correlation, fractal dimension, self-similarity, sophistication, size of the machine topology, difference in a subtree graph, temporal or spatial complexity of calculation, logic depth or thermodynamics, arge-scale order, self-organization, edge of chaos and others. Generally, complex systems may have the following features:Very large number of elements and connections
Loss of milkweeds means monarchs could go extinct There is a good chance that monarch butterflies will face a “quasi-extinction” in the next 20 years, researchers warn. Despite a favorable summer in 2015, the eastern migratory population declined 84 percent between 1996 and 2014. Quasi-extinction means that so few individual monarchs would exist that their migratory patterns would collapse and the population likely wouldn’t recover. For a new study, published in the journal Scientific Reports, researchers used historic trends to develop models that forecast future monarch populations. PageRank Mathematical PageRanks for a simple network, expressed as percentages. (Google uses a logarithmic scale.) Page C has a higher PageRank than Page E, even though there are fewer links to C; the one link to C comes from an important page and hence is of high value. If web surfers who start on a random page have an 85% likelihood of choosing a random link from the page they are currently visiting, and a 15% likelihood of jumping to a page chosen at random from the entire web, they will reach Page E 8.1% of the time. (The 15% likelihood of jumping to an arbitrary page corresponds to a damping factor of 85%.)
Like rivers on land, melting water erodes Greenland's ice To get a clearer idea of how Greenland’s ice sheet is responding to climate change, scientists are taking a closer look at the drainage channels of water as it melts during the summer. The work suggests the resulting erosion on the ice sheet shapes landscapes similarly to, but much faster than, rivers do on land. “How fast is the ice sheet melting, and how much the melt will contribute to rising sea levels are important questions,” says Leif Karlstrom, a professor in geological sciences at the University of Oregon. “It is important to quantify the melt rate, but that is not easy. Deep Web Intelligence We are finding many different industries are able to capitalize on Data-as-a-Service (DaaS). In this post we’ll uncover how a mining company is using BrightPlanet’s Data-as-a-Service model to monitor the Ebola health outbreak to keep their expatriates informed and out of harm’s way with the use of one dataset. You’ll see what type of data is harvested and how it is enriched to make it usable. Continue reading
How monarchs make it to Mexico without a map Each fall, monarch butterflies across Canada and the United States turn their colorful wings toward the Rio Grande and migrate more than 2,000 miles to the relative warmth of central Mexico. The journey, repeated instinctively by generations of monarchs, continues even as their numbers have plummeted due to loss of their sole larval food source—milkweed. Now, scientists think they have cracked the secret of the internal, genetically encoded compass monarchs use to determine the southwest direction they should fly each fall. “Their compass integrates two pieces of information—the time of day and the sun’s position on the horizon—to find the southerly direction,” says Eli Shlizerman, assistant professor at the University of Washington, who has joint appointments in the applied mathematics and the electrical engineering departments. [Loss of milkweed means monarch could go extinct] Monarchs use their large, complex eyes to monitor the sun’s position in the sky.
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