A solar-powered airplane finished crossing the United States on Saturday, landing in New York City after flying over the Statue of Liberty during its historic bid to circle the globe, the project team said. The spindly, single-seat experimental aircraft, dubbed Solar Impulse 2, arrived at New York's John F. Kennedy International Airport at about 4 a.m. local time after it took off about five hours beforehand at Lehigh Valley International Airport in Pennsylvania, the team reported on the airplane's website. Such a pleasure to land in New York! For the 14th time we celebrate sustainability," said the project's co-founder Andre Borschberg on Twitter after flying over the city and the Statue of Liberty during the 14th leg of the trip around the globe. The Swiss team flying the aircraft in a campaign to build support for clean energy technologies hopes eventually to complete its circumnavigation in Abu Dhabi, where the journey began in March 2015. The solar cr...
The head of Apple's operating system iOS confirmed that open but unused apps do not affect iPhone battery life
The customer from Ohio, known as Caleb, asked Mr Cook whether closing down "multitasking apps" improved battery life and whether it was something the chief executive did himself. Senior vice-president Craig Federighi replied "no and no". However, other smartphone batteries can benefit from app closure. Microsoft advises Nokia Lumia owners to close apps that aren't in use on a web page about extending battery life. "You can view and optimise your device through closing running apps and uninstalling unnecessary apps," said Samsung in an announcement about a new "smart manager" app for the Galaxy 6. While many Apple users do shut down apps in the belief it extends the iPhone battery this is not advice explicitly given by the firm itself.
It only recommends disabling apps from carrying out background refreshes in a list of tips about saving power. Former chief executive Steve Jobs would sometimes reply directly to unsolicited emails - generally in very few words - but Tim Cook appears to be less forthcoming. Caleb shared his unusual correspondence with the website 9to5mac. "On a technical level, most of the apps are either frozen in RAM or not running at all, the system just displays them as a history for consistency. This is why the battery life impact is negligible," reporter Benjamin Mayo notes.
Caleb himself appears to be surprised by the attention the emails received. "That went more viral than I thought it would," he tweeted.
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