     |
Last year, the UN's International Telecommunication Union (ITU) told us there were five billion mobile subscriptions worldwide at the close of 2010, and now it's reporting that at the end of 2011, that figure hit a staggering six billion.
Interestingly, the number of global mobile broadband subscriptions now outnumbers fixed ones by two to one, and mobile internet services showed the biggest growth rates in 2011: 40% worldwide and 78% in developing markets. The ITU attributes the latter figure to the relatively high price of fixed access in these countries, and the increasing availability of mobile alternatives. The CTIA also commented on mobile broadband use, reporting that from July 2011 to June this year, Americans consumed 104 percent more data -- no doubt due, in part, to people taking advantage of expanding 4G coverage. As usual, we've given you the cheat sheet, so if you'd like the full reports and have got a thing for statistics, there's plenty more in the source links below.
[Image credit: Chris Jordan]
Filed under: Cellphones, Tablets, Wireless, Internet, Mobile
International Telecommunication Union: worldwide mobile subscriptions hit six billion in 2011 originally appeared on Engadget on Fri, 12 Oct 2012 12:19:00 EDT. Please see our terms for use of feeds.
Permalink
Ars Technica | 
ITU, CTIA | Email this | Comments 
Imaging has been defined by glass lenses for centuries, and even fiber optics haven't entirely escaped the material's clutch. Harvard's School of Engineering and Applied Sciences might have just found a way to buck those old (and not-so-old) traditions. A new 60-nanometer thick silicon lens, layered with legions of gold nanoantennas, can catch and refocus light without the distortion or other artifacts that come with having to use the thick, curved pieces of glass we're used to -- it's so accurate that it nearly challenges the laws of diffraction. The lens isn't trapped to bending one slice of the light spectrum, either. It can range from near-infrared to terahertz ranges, suiting it both to photography and to shuttling data. We don't know what obstacles might be in the way to production, which leads us to think that we won't be finding a gold-and-silicon lens attached to a camera or inside a network connection anytime soon. If the technology holds up under scrutiny, though, it could ultimtately spare us from the big, complicated optics we often need to get just the right shot.
Harvard makes distortion-free lens from gold and silicon, aims for the perfect image (or signal) originally appeared on Engadget on Sat, 25 Aug 2012 00:00:00 EDT. Please see our terms for use of feeds.
PermalinkPhys.org | Harvard University | Email this | Comments 
An $18 million dollar radio system purchased by the Oakland Police Department has been giving static instead of 10-30s in progress, and the interfering party has now been collared -- AT&T. Local officials and the FCC told the mobile network that its towers were blocking police communication, particularly when patrol cars were within a quarter-mile of one. However, some local pundits have said the problem is of the PD's own making, claiming it invested in an inferior system and didn't check carefully enough for interference before making the buy. As a result, AT&T has temporarily shut down 2G frequencies around the city -- giving the telecom giant an unplanned sneak preview of the upcoming phase-out.
Filed under: Cellphones
AT&T suspends 2G in Oakland after cell towers step on police frequencies originally appeared on Engadget on Wed, 22 Aug 2012 16:03:00 EDT. Please see our terms for use of feeds.
PermalinkArs Technica | SFGate | Email this | Comments 
