Tuesday, August 9, 2011

Huge Group of Polar Dinosaur Tracks Discovered in Australia

Huge Group of Polar Dinosaur Tracks Discovered in Australia: "


The discovery of a group of more than 20 three-toed dinosaur tracks in Australia is the largest and best-preserved collection of polar dinosaur tracks found in the Southern Hemisphere.

The tracks were found on the rocky coast of Victoria, Australia, in rocks that are around 105 million years old, paleontologists report in the journal Alcheringa Aug. 9.

Dinosaurs thrived in the area 115–105 million years ago when Australia was connected to Antarctica; the creatures spent months of the year roaming in polar darkness. Paleontologists believe the newly discovered tracks, found in sandstone blocks on Milanesia Beach in Great Otway National Park, were made on a flood plain in the summer, after the polar ice had melted and washed into the river valley. The sandstone also contains ripple marks and traces of insect burrows, common features of flood plains.

“These tracks provide us with a direct indicator of how these dinosaurs were interacting with the polar ecosystems, during an important time in geological history,” said Anthony Martin, Emory University paleontologist and research leader in a press release.



Three different sizes of small theropods, spanning from the size of a chicken to large crane, left the markings. Theropods were bipedal, mostly carnivorous dinosaurs that are ancestors of modern birds.

“The small, medium and large tracks may have been made by three different species,” said Martin. “They could also belong to two genders and a juvenile of one species,­ a little dinosaur family,­ but that’s purely speculative.”



Image: Anthony Martin/Emory University. Video: Emory University.

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Perseid Meteor Shower Peaks Friday, But Watch Wednesday Morn

Perseid Meteor Shower Peaks Friday, But Watch Wednesday Morn: "


To catch the best view of a prolific meteor shower, scrap your plans tonight and get to bed for an early morning tomorrow.

The Perseid meteor shower sprinkles Earth with cometary dust every year from July to August. This year the event peaks the mornings of Aug. 12 and 13 around 2 a.m. local time for northern stargazers and 6 a.m. for those in the Southern Hemisphere.

But there’s a problem: The full moon waxes this weekend.



Theoretically, stargazers can catch between 50 and 80 shooting stars per hour from the darkest and most remote viewing locations. The full moon, however, will rise at dusk and set near dawn through the Perseids’ peak. The bright light will obscure most cometary debris that happens to streak through Earth’s thick atmosphere as meteors.

To get the best view, plan for a very early rise tomorrow, just after the moon sets. For most stargazers, the moon will sink below the horizon around 3 a.m. local time. (Check the exact moonrise and moonset time in your location with a simple calculator.)

The rate of meteors won’t be as good as during the peak this weekend, but lucky observers in dark skies should still see around 20 per hour. Northern observers should look to the northeast in the constellation Perseus. Southern observers will need to wait very close to dawn to see the shower on top of the northern horizon.

Comet Swift-Tuttle left behind the trail of debris that Earth sweeps through each year to create the Perseids.

As cometary particles begin entering ever-thicker regions of Earth’s atmosphere — between 45 and 60 miles up — they compress air in front, heat up and disintegrate into bright glowing trails. The particles range in size from grains of sand to small boulders, the latter being much less common.

If any readers out there take photos of the meteor shower this week, Wired Science would love to see and share them! Send full-resolution photos (or a link to them) and a credit to dave_mosher@wired.com and make the subject line includes the words “meteor shower.”

Image: Adcuz/Flickr

See Also:

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Monday, August 8, 2011

Exercise a 'Wonder Drug' for Cancer Survival

Physical Activity Aids Recovery and long-Term Health of Cancer Survivors, Report Shows
Woman after exercise with towel around neck

Aug. 8, 2011 -- Cancer patients can reduce the risks of side effects and cancer recurrence by exercising regularly, a new report shows.
The report, "Move More: Physical activity the underrated 'wonder drug,'"from Macmillan Cancer Support in the U.K., says that 150 minutes of moderate intensity activity per week, the amount recommended by the U.K.'s four chief medical officers, is the minimum amount required to see the benefits.
Moderate intensity activity includes exercise such as cycling and very brisk walking, but also household tasks such as heavy cleaning and mowing the lawn.
The report presents four key findings:
  1. Breast cancer patients' risk of recurrence and of dying from the disease can be reduced by up to 40% by doing 150 minutes of moderate intensity activity per week.
  2. Bowel cancer patients' risk of recurrence and dying from the disease can be reduced by up to 50% by doing significant amounts of physical activity; this means about six hours of moderate intensity physical activity per week.
  3. Prostate cancer patients' risk of dying from the disease can be reduced by up to 30% by doing the recommended 150 minutes of moderate intensity physical activity.
After treatment, all cancer patients can reduce their risk of side effects from cancer and its treatment, including fatigue, depression, osteoporosis, and heart disease, by doing the recommended levels of physical activity.

Many Health Professionals Unaware of Benefits

However, despite strong emerging evidence that being physically active could dramatically improve cancer patients' recovery and long-term health, a Macmillan online survey of 400 health professionals who deal with cancer patients found that many are not aware of this and most are not talking to their patients about it. Over half of the primary care doctors, nurses, and oncologists surveyed do not speak to their cancer patients about the benefits of physical activity, or at best they speak to just a few of them.
Ciaran Devane, chief executive of Macmillan Cancer Support, says, "Cancer patients would be shocked if they knew just how much benefit physical activity could have on their recovery and long-term health, in some cases reducing their chances of having to go through the grueling ordeal of treatment all over again."

Exercise Not Just an Add-on to Care

According to Jane Maher, chief medical officer of Macmillan Cancer Support, "The advice I would previously have given to one of my patients would have been to 'take it easy.' This has now changed significantly because of the recognition that, if physical exercise were a drug, it would be hitting the headlines. There really needs to be a cultural change so that health professionals see physical activity as an integral part of cancer after-care, not just an optional add-on."

Wednesday, August 3, 2011

Is Our Moon Actually Two Moons That Smashed Into Each Other?

Is Our Moon Actually Two Moons That Smashed Into Each Other?: "


Some scientists are starting to believe that our moon is actually the result of a mid-air space collision of two moons. They say that the two-moon theory could explain why each side of the moon is so different from the other.

It’s widely accepted that the moon was created when a Mars-sized body hit Earth which blasted material that would eventually form the moon into space. This conveniently explains the differences between the moon and Earth. However! The differences between the near side of the moon and the far side (or dark of the moon) can’t be neatly explained in this theory. That’s why scientists believe that a smaller, littler moon had also existed after the Mars-sized body hit the Earth. The little moon and real moon co-existed peacefully until the smaller moon was pulled from its orbit and smashed into real moon, creating our moon. Moons, moons, moons!

Specifically, the scientists say that the “companion moon, 1/3 the diameter of the Moon, striking at subsonic velocity, does not form a crater. The impact produces an accretionary pile rather than a crater.” That means most of the material from little moon would have stayed on one side, like while the material of the original moon stayed on the other side. Two moons, moon smash, our moon. [Nature, Space, Ars Technica]

Sunday, July 31, 2011

‘DIDO’ Tech From QuickTime Creator Could Revolutionise Wireless Broadband


‘DIDO’ Tech From QuickTime Creator Could Revolutionise Wireless Broadband


That’s a big statement, but Steve Perlman has the chops: he lead dev of QuickTime at Apple in the ’80s, co-founded WebTV in the ’90s, and more recently launched the OnLive game streaming service. Now his company has published a white paper for a new wireless tech claiming to flip current Wi-Fi, 3G and LTE limitations by getting faster (not slower) with more users. It supposedly allows users to access the full spectrum bandwidth and has been tested at speeds up to 100Mbps. Is the NBN in trouble?
Malcolm Turnbull reckons so (surprise!), telling the Australian that it could challenge the government’s wisdom on fibre. But the reality is that the tech, which also claims sub-millisecond latency from kilometres away, is at least 10 years off before it even comes close to commercialisation and the current copper network would still pose a bottle neck. Oh, and DIDO (which stands for Distributed-Input-Distributed-Output) is still largely an unproven concept.
As Stan Beer at ITWire put it, the tech “claims to offer all the advantages of wireless Internet connectivity without the disadvantages of latency and bandwidth limitations caused by the pesky laws of physics that NBN devotees love to cite.”
Still, colour me interested — definitely one to watch. [DIDO white paper via ITWire]
Distributed-Input-Distributed-Output (DIDO) wireless technology is a breakthrough approach that allows each wireless user to use the full data rate1 of shared spectrum simultaneously with all other users, by eliminating interference between users sharing the same spectrum. With conventional wireless technologies the data rate available per user drops as more users share the same spectrum to avoid interference, but with DIDO, the data rate per user remains steady at the full data rate of the spectrum as more users are added.
As a result, DIDO profoundly increases the data capacity of wireless spectrum, while increasing reliability and reducing the cost and complexity of wireless devices. DIDO deployment is far less expensive than conventional commercial wireless deployment, despite having vastly higher capacity and performance, and is able to use consumer Internet infrastructure and indoor access points.
The potential of DIDO is to have unlimited number of simultaneous users, all streaming high-definition video, utilizing the same spectrum that a single user would use with conventional wireless technology, with no degradation in performance, no dead zones, no interference between users, and no reduction in data rate as more users are added.
DIDO works indoor/outdoor for urban/suburban applications at distances of several miles, and for rural applications, DIDO works at distances up to 250 miles. Urban/suburban latency is sub-millisecond.
This paper describes how DIDO is dramatically different than conventional wireless technology, how DIDO works, what we have running so far, and the mind-blowing applications DIDO makes possible.
We believe that DIDO wireless will completely transform the world of communications and far more.

Wednesday, July 27, 2011

Why Japan Is Drilling Offshore For "Burning Ice"


But Japan may want to take its time on the $127.5 million project, which aims to start commercial drilling early next decade. 'Methane hydrates are a geological hazard, and it's been well
established for decades that they are dangerous,' said Richard Charter, a member of the
Department of Energy's methane hydrates advisory panel, in an interview last year with Discovery News. 'Until 10 or 15
years ago, the industry would avoid them no matter what.'


methane hydrate

The newest form of natural gas might be the most potent yet. But while Japan is using it to replace nuclear power, mining it could just cause more disasters.

Ever since the Fukushima nuclear disaster, Japan has been scrambling to find alternative energy sources to replace its reliance on nuclear power. Just last month, Prime Minister Naoto Kan called for a nuclear-free future for the country. So now the technologically savvy country is attempting to perform a first in the energy industry: extracting natural gas from deposits of methane hydrate (aka 'burning ice') located in the seabed southwest of Tokyo. And it could end in disaster if Japan isn't careful.
Methane hydrates--ice-like crystals seen in places with high pressure and low temperatures--are often found on the ocean floor, where gas crystallizes as it comes into contact with the icy sea water. No one has ever attempted to extract methane hydrates offshore; it has only been attempted on land in Canada (using technology developed in Japan, natch).
That's because the presence of methane hydrates makes the seafloor unstable. If accidentally released into the atmosphere, methane could speed up climate change (methane is 21 times more effective at trapping heat than CO2). And as Popular Mechanics explains, decomposing hydrates near the seafloor's surface could cause landslides on the continental slope that trigger tsunamis.
But with big risks come big potential rewards. Methane hydrates are chock-full of natural gas; one cubic meter of methane hydrate releases a whopping 164 cubic meters of natural gas, and hydrate deposits are often hundreds of meters thick. According to the DOE, the energy content of methane in hydrate form may surpass the energy content of every other fossil fuel.
In a world with dwindling fossil fuel resources, there's no way that energy-hungry countries can afford to ignore an opportunity like that, even as alternative energy sources gain ground. Let's just hope that Japan--and every other country that decides to tap into the methane hydrate goldmine--takes serious safety precautions.
[Images: Top: Wikipedia; Bottom: Wikipedia]

Reach Ariel Schwartz via Twitter or email.

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Wednesday, July 20, 2011

Google+ is the social backbone

The launch of Google+ is the beginning of a fundamental change on the web. A change that will tear down silos, empower users and create opportunities to take software and collaboration to new levels.


Social features will become pervasive, and fundamental to our interaction with networked services. Collaboration from within applications will be as natural to us as searching for answers on the web is today.


It's not just about Google vs Facebook



Much attention has focused on Google+ as a Facebook competitor, but to view the system solely within that context is short-sighted. The consequences of the launch of Google+ are wider-reaching, more exciting and undoubtedly more controversial.


Google+ is the rapidly growing seed of a web-wide social backbone, and the catalyst for the ultimate uniting of the social graph. All it will take on Google's part is a step of openness to bring about such a commoditization of the social layer. This would not only be egalitarian, but would also be the most effective competitive measure against Facebook.


As web search connects people to documents across the web, the social backbone connects people to each other directly, across the full span of web-wide activity. (For the avoidance of doubt, I take 'web' to include networked phone and tablet applications, even if the web use is invisible to the user.)


Search removed the need to remember domain names and URLs. It's a superior way to locate content. The social backbone will relieve our need to manage email addresses and save us laborious "friending" and permission-granting activity — in addition to providing other common services such as notification and sharing.


Though Google+ is the work of one company, there are good reasons to herald it as the start of a commodity social layer for the Internet. Google decided to make Google+ be part of the web and not a walled garden. There is good reason to think that represents an inclination to openness and interoperation, as I explain below.


It's time for the social layer to become a commodity


We're now several years into the era of social networks. Companies have come and gone, trying to capture the social graph and exploit it. Well intentioned but doomed grass-roots initiatives have waxed and waned. Facebook has won the platform game, being the dominant owner of our social attention, albeit mostly limited to non-workplace application.


What does this activity in social software mean? Clearly, social features are important to us as users of computers. We like to identify our friends, share with them, and meet with them. And it's not just friends. We want to identify co-workers, family, sales prospects, interesting celebrities.


Currently, we have all these groups siloed. Because we have many different contexts and levels of intimacy with people in these groups, we're inclined to use different systems to interact with them. Facebook for gaming, friends and family. LinkedIn for customers, recruiters, sales prospects. Twitter for friends and celebrities. And so on into specialist communities: Instagram and Flickr, Yammer or Salesforce Chatter for co-workers.


The situation is reminiscent of electronic mail before it became standardized. Differing semi-interoperable systems, many as walled gardens. Business plans predicated on somehow 'owning' the social graph. The social software scene is filled with systems that assume a closed world, making them more easily managed as businesses, but ultimately providing for an uncomfortable interface with the reality of user need.


An interoperable email system created widespread benefit, and permitted many ecosystems to emerge on top of it, both formal and ad-hoc. Email reduced distance and time between people, enabling rapid iteration of ideas, collaboration and community formation. For example, it's hard to imagine the open source revolution without email.


When the social layer becomes a standard facility, available to any application, we'll release ourselves into a world of enhanced diversity, productivity and creative opportunity. Though we don't labor as much under the constraints of distance or time as we did before email, we are confined by boundaries of data silos. Our information is owned by others, we cannot readily share what is ours, and collaboration is still mostly boxed by the confines of an application's ability.


A social backbone would also be a boost for diversity. Communities of interest would be enabled by the ready availability of social networking, without having the heavy lifting in creating the community, or run the risk of disapproval or censorship from a controlling enterprise.


The effect of email interoperability didn't just stop at enabling communication: it was a catalyst for standards in document formats and richer collaboration. The social backbone won't just make it easier to handle permissions, identity and sharing, but will naturally exert pressure for further interoperation between applications. Once their identity is united across applications, users will expect their data to travel as well.


We see already a leaning toward this interoperability: the use of Twitter, Facebook and Google as sign-on mechanisms across websites and games, attempts to federate and intermingle social software, cloud-based identity and wallet services.


What a social backbone would do



As users, what can we expect a social backbone to do for us? The point is to help computers serve us better. We naturally work in contexts that involve not only documents and information, but groups of people. When working with others, the faster and higher bandwidth the communication, the better.


To give some examples, consider workplace collaboration. Today's groupware solutions are closed worlds. It's impractical for them to encompass either a particularly flexible social model, or a rich enough variety of applications and content, so they support a restricted set of processes. A social backbone could make groupware out of every application. For the future Photoshop, iMovie and Excel, it adds the equivalent power of calling someone over and saying 'Hey, what about this?'


Or think about people you interact with. When you're with someone, everything you're currently doing with them is important. Let's say you're working with your friend Jane on the school's PTA fundraiser, and her and your kids play together. Drag Jane into your PTA and Playdates circles. Drop a letter to parents into the PTA circle, and your calendar's free/busy info into Playdates.


Now you're sharing information both of you need. Next Thursday you see Jane at school. While you're chatting, naturally the topic of playdates and the PTA come up. You bring up Jane on your phone, and there are links right there to the letter you're writing, and some suggested dates for mutually free time.


Teaching computer systems about who we know lets them make better guesses as to what we need to know, and when. My examples are merely simple increases in convenience. The history of computing frequently shows that once a platform is opened up, the creative achievements of others far exceed those dreamed of by the platform's progenitors.


The social backbone democratizes social software: developers are freed from the limitations of walled gardens, and the power to control what you do with your friends and colleagues is returned to you, the user.


Social backbone services



Which services will the social backbone provide? We can extract these from those provided by today's web and social software applications:



  • Identity — authenticating you as a user, and storing information about you

  • Sharing — access rights over content

  • Notification — informing users of changes to content or contacts' content

  • Annotation — commenting on content

  • Communication — direct interaction among members of the system


These facilities are not new requirements. Each of them have been met in differing ways by existing services. Google and Amazon serve as identity brokers with a reasonable degree of assurance, as do Twitter and Facebook, albeit with a lesser degree of trust.


A host of web services address sharing of content, though mostly focused on sharing the read permission, rather than the edit permission. Notification originated with email, graduated through RSS, and is now a major part of Twitter's significance, as well as a fundamental feature of Facebook. Annotation is as old as the web, embodied by the hyperlink, but has been most usefully realized through blogging, Disqus, Twitter and Facebook commenting. Communication between users has been around as long as multi-user operating systems, but is most usefully implemented today in Facebook chat and instant messaging, where ad-hoc groups can easily be formed.


Why not Facebook?



Unfortunately, each of today's answers to providing these social facilities are limited by their implementation. Facebook provides the most rounded complement of social features, so it's a reasonable question to ask why Facebook itself can't provide the social backbone for the Internet.


Facebook's chief flaw is that is a closed platform. Facebook does not want to be the web. It would like to draw web citizens into itself, so it plays on the web, but in terms that leave no room for doubt where the power lies. Content items in Facebook do not have a URI, so by definition can never be part of the broader web. If you want to use Facebook's social layer, you must be part of and subject to the Facebook platform.


Additionally, there are issues with the symmetry of Facebook's friending model: it just doesn't model real life situations. Even the term 'friend' doesn't allow for the nuance that a capable web-wide social backbone needs.


This is not to set up a Facebook vs Google+ discussion, but to highlight that Facebook doesn't meet the needs of a global social backbone.


Why Google+?



Why is Google+ is the genesis of a social backbone? The simple answer is that it's the first system to combine a flexible enough social model with a widespread user base, and a company for whom exclusive ownership of the social graph isn't essential to their business.


Google also has the power to bootstrap Google+ as a social backbone: the integration of Google+ into Google's own web applications would be a powerful proving ground and advertisement for the concept.


Yet one company alone should not have the power to manage identity for everyone. A workable and safe social backbone must support competition and choice, while still retaining the benefits of the network. Email interoperability was created not by the domination of one system, but by standards for communication.


To achieve a web-wide effect, Google+ needs more openness and interoperability, which it does not yet have. The features offered by the upcoming Google+ API will give us a strong indication of Google's attitude towards control and interoperability.


There is some substantial evidence that Google would support an open and interoperable social backbone:



  • Google's prominence as a supporter of the open web, which is crucial to its business.

  • The early inclination to interoperation of Google+: public content items have a URI, fallback to email is supported for contacts who are not Google+ members.

  • Google is loudly trumpeting their Data Liberation Front, committed to giving users full access to their own data.

  • Google has been involved in the creation of, or has supported, early stage technologies that address portions of the social backbone, including OAuth, OpenID, OpenSocial, PubSubHubbub.

  • Google displays an openness to federation with interoperating systems, evinced most keenly by Joseph Smarr, the engineer behind the Google+ Circles model. The ill-fated Google Wave incorporated federation.

  • The most open system possible would best benefit Google's mission in organizing the world's information, and their business in targeting relevant advertising.


Toward the social backbone



Computers ought to serve us and provide us with means of expression.


A common, expressive and interoperable social backbone will help users and software developers alike. Liberated from information silos and repeat labor of curating friends and acquaintances, we will be free to collaborate more freely. Applications will be better able to serve us as individuals, not as an abstract class of 'users'.


The road to the social backbone must be carefully trodden, with privacy a major issue. There is a tough trade-off between providing usable systems and those with enough nuance to sufficiently meet our models of collaboration and sharing.


Obstacles notwithstanding, Google+ represents the promise of a next generation of social software. Incorporating learnings from previous failures, a smattering of innovation, and a close attention to user need, it is already a success.


It requires only one further step of openness to take the Google+ product into the beginnings of a social backbone. By taking that step, Google will contribute as much to humanity as it has with search.


Edd Dumbill is the chair of O'Reilly's Strata and OSCON conferences. Find him here on Google+.





(Google's Joseph Smarr, a member of the Google+ team, will discuss the future of the social web at OSCON. Save 20% on registration with the code OS11RAD.)




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