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Source: http://www.today.com/id/7358550/ns/today-entertainment/
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Tuesday, 25 June 2013
O3b space constellation to launch
24 June 2013
Last updated at 06:01 ET
An innovative new space network goes into orbit on Monday.
O3b will put a series of satellites 8,000km above the Earth to provide communications to those parts of the world that have poor fibre optic infrastructure.
With backing from blue chip companies such as Google, O3b believes its novel system can change the broadband experience for millions of people.
The network's first four satellites will launch from French Guiana.
They will ride a Soyuz rocket from the Sinnamary spaceport, with lift-off scheduled for 15:53 local time (18:53 GMT)
It will take just over two hours for the Soyuz's Fregat upper-stage to raise the satellites to their operational altitude.
O3b will handle primarily voice and data traffic for mobile phone operators and internet service providers. It will pick up this traffic as the spacecraft pass overhead and then relay it to ground stations, or teleports, for onward connection to global networks.
Although other satellites routinely do this, O3b is taking a markedly different approach.
By flying in a Medium-Earth Orbit of 8,000km, its satellites will be a quarter of the distance from Earth than is the case with traditional geostationary (GEO) telecommunications spacecraft, which sit some 36,000km above the planet.
This should reduce substantially the delay, or latency, of the signal as the voice or data traffic is routed via space.
"The network was designed to avoid much of the difficulty that satellite connectivity provides today which is this delay," said O3b CEO Steve Collar.
"We've all been on a satellite call and you have that 600 milliseconds delay, which doesn't sound like much but it's enough to make that connection almost unusable. It's just as much of a problem on data networks. If you are on the internet and are searching for a site, it affects your behaviour if you get slow responses. You'll stop using the service. We wanted to fix those problems and the only way to fix them is to bring the satellites closer to Earth."
O3b is promising round-trip transmission time of a little more than 100 milliseconds.
The satellites will operate in the high-frequency Ka-band and have the capability to deliver 10 beams, at 1.2Gbps per beam, to each of O3b's seven operational regions.
The company expects to start services at the end of the year, once it gets eight spacecraft in orbit, but the intention is to put up perhaps as many as 20 eventually.
It has taken about six years to put the O3b project together. Important backers include not only Google but SES, one of the big players in the traditional satellite communications business.
O3b was born from founder Greg Wyler's frustration with the difficulty of connecting a modern teleco in Rwanda to the global fibre optic network, and the constraints that placed on performance.
O3b actually stands for "other three billion" - the number of people whose poor communications experience is expected to improve over the coming decade. O3b sees itself as an important agent of that change.
"There are two billion people in the world that are connected to the internet today; there are five billion who are not; and three billion who will be in the course of the next 10-15 years," said Mr Collar. "The other three billion is our target - that's who we're trying to reach, and that's where our name comes from."
The Jersey, Channel Islands-based outfit has raised more than $1bn to build its space and ground infrastructure.
O3b's largest debt facility, over $0.5bn, is provided by HSBC, ING, CA-CIB and Dexia, and is underwritten by the French export credit agency, Coface. The agency is supporting three new space constellations, all of them built by Thales Alenia Space.
The 700kg spacecraft that TAS is building for O3b are based on the 24 spacecraft it has just finished for the Globalstar satellite phone network.
One of the challenges of running the system is tracking platforms as they move across the sky.
"The constellation will be spread equally around the equator which means you have to pick the satellite up as it comes over the horizon and follow it to the other side; and as soon as it goes out of visibility there is already another satellite waiting to be picked up," explained Philippe Nabet, the TAS programme manager on the O3b project.
"There will be three antennas at the ground stations - two to track the satellites; the third is a spare."
Jonathan.Amos-INTERNET@bbc.co.uk and follow me on Twitter: @BBCAmos
Source: http://www.bbc.co.uk/news/science-environment-23028083#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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Monday, 24 June 2013
Appfuel Is A Simple Way For App Developers To Balance Monetization And Growth
Appfuel is aiming to make it easy for mobile app developers to manage the tradeoff between user growth and monetization. Cross-promotion between apps is a big part of the ecosystem, but CEO Andrew Boos said Appfuel is unique because of its simplicity. Developers add a "suggested apps" unit to their own apps, and they can either grow their user base by getting a reciprocal recommendation in another app, or they can earn money by running sponsored suggestions ? or rather, with Appfuel, they do a mix of both. To adjust the program, they just move a slider determining how much of their inventory goes towards recommendation swapping versus sponsored links, and Appfuel handles the rest of the optimization process.Source: http://feedproxy.google.com/~r/Techcrunch/~3/pwAOn40OpEc/
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5 Things iOS 7 Tells Us About Your Next iPhone and iPad
One of the wonderful things about getting your first iPhone was the sheer self-sufficient simplicity of the thing?here was a device that served as a map, mp3 player, notebook, phone, and anything else you might need, all crunched into a beautiful little package. But if this year's WWDC was any indication, that era of autonomous Apple devices is nearing an end.
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Sunday, 23 June 2013
One woman?s journey out of Hasidism
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Trouble either way
Getty ImagesThirteen years ago, Ravens linebacker Ray Lewis faced double murder charges in Atlanta.? Eventually, he pleaded guilty to obstruction of justice, with an agreement to testify against other defendants.? No one was convicted of the killings.
While Lewis avoided the far more serious crime, the NFL still fined Lewis $250,000 for his role in, as prosecutors have described such cases, kicking dirt in the eyes of the authorities.? If that?s the only charge prosecutors in Boston ever are able to pin on Patriots tight end Aaron Hernandez, either by guilty plea or through the introduction of proof beyond a reasonable doubt, Hernandez can count on an even stiffer sanction from the league office than the Lewis penalty.
Six years ago, Commissioner Roger Goodell overhauled the personal-conduct policy, expanding its reach and enhancing its penalties.? Since then, Goodell has shown a willingness to take swift and decisive action against players who violate it.? Pacman Jones received a one-year suspension despite never going to jail for any of his various legal entanglements at the NFL level.? Ben Roethlisberger received a six-game suspension (reduced to four) despite never even being arrested.? And the NFL indefinitely suspended Mike Vick the moment he was indicted for charges of dogfighting and gambling.
For Hernandez, the clearest apples-to-apples comparison comes from the cases of Leonard Little and Donte? Stallworth.? Both caused a death while driving drunk.? Little was suspended eight games by Commissioner Paul Tagliabue in 1999.? Stallworth received a full year from Goodell in 2009.
From Hernandez?s perspective, that formula would result in a fine of $500,000, if he pleads guilty to obstruction of justice.? We?ve got a feeling, based on Goodell?s history of imposing discipline for off-field misbehavior, that won?t happen.
Based on reports from ABC and FOX 25 in Boston, police believe Hernandez deliberately destroyed (or at least tried to destroy) electronic evidence that would likely help solve the question of who killed Odin Lloyd.? Goodell won?t react kindly to NFL players attempting so brazenly to prevent justice from being done, especially when ?justice? entails finding a murderer.? If Roethlisberger was suspended four games for being sued for sexual assault in Nevada and accused of another in Georgia despite never being arrested or charged, Hernandez could be in line for something like that or worse if he ultimately admits or is convicted of attempting to cover up a murder.
It gets far worse for Hernandez if he?s charged with murder.? Or if the NFL, through the in-house police force known as NFL Security, determines that he did it.? There?s no ?if it doesn?t fit you must acquit? in the Court of the Commissioner.? He remains, under the personal-conduct policy, the judge, jury, executioner, appeals court, and governor.? And while the bounty case proved that diligent, aggressive lawyering could force Goodell to bump the appeal to his more lenient predecessor, Goodell and company surely learned from that experience how to avoid creating evidence that could be used to undermine his perceived neutrality.
So, basically, Hernandez is likely looking at a suspension if obstruction of justice sticks.? If the NFL decides he did more than merely help cover things up, Hernandez may be gone from the game for a long time.
The more immediate question becomes whether the league and the Patriots will allow Hernandez to show up for training camp if the situation remains unresolved.? The NFL and the Cowboys have managed to keep defensive tackle Josh Brent at a distance while he prepares for a September 2013 trial in the DUI death of Cowboys linebacker Jerry Brown.? Look for the league and the Pats to finesse a similar outcome that would keep Hernandez from being a far bigger distraction than the player the Patriots signed only 10 days ago.
UPDATE 10:42 a.m. ET:? This item was based on multiple reports than arrest warrant has been issued for Hernandez, and that he will be charged with obstruction of justice.? The Boston Globe has since reported that no arrest warrant has been issued.
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