Simple web browsing may drain your smartphone's battery

   Apr 18, 5:31 pm

London, Apr 18 (ANI): While it is known that free apps, watching a video or playing a game consume your cellphone's battery, a new study including Indian origin researcher has revealed that merely surfing the internet on mobile comes with an energy cost.

Researchers at Stanford University and Deutsche Telekom found that a number of popular sites, like Wikipedia, IMDB and even iPhone manufacturer Apple's homepage, are wasting energy because of bloated code.

The researchers also shed light on how to trim down this energy usage by nearly 30 per cent, without affecting the experience of users.

Stanford computer scientist Narendran Thiagarajan and colleagues used an Android phone hooked up to a multimeter to measure the energy used in downloading and rendering 25 popular websites, New Scientist reported.

Simply loading the mobile version of Wikipedia over a 3G connection devoured just more than 1 per cent of the phone's battery, while browsing to apple.com, which does not have a mobile version, used 1.4 per cent.

The measurements were then repeated with locally saved versions of the website, facilitating them to separate out the energy needed to render a page from that need to download it.

Javascript and CSS files are used in most modern websites that offer additional functions and styles that are not possible using basic HTML.

However, the researchers found that several websites they looked at were loading large files that were not being used in the page.

For instance, Wikipedia utilizes a custom file Javascript besides a generic library to collapse and expand the different sections on a page, but a great deal of the library goes unused.

By rewriting the site's Javascript to just perform the required function, Thiagarajan and colleagues were able to decrease the energy consumption from 15 to 9.5 Joules.

Making similar changes to the CSS files and images, they successfully reduced the total energy used in loading Wikipedia from 35 to 25 Joules, a saving of 29 per cent. (ANI)

Now, upload video from any source on Vine Aug 22, 5:32 pm
Washington, Aug 22 (ANI): Twitter owned six second video app Vine has announced that users can now import video from any source, as long as the file can get to their iOS camera roll.
Full Story
Soon, Google may provide 'one stop shop' for 'entire' human knowledge Aug 22, 2:40 pm
Washington, Aug 22 (ANI): Google is planning to build a vast knowledge bank, which promises to include complete human knowledge, it has been reported.
Full Story
Soon, 'human-like-skin' for aircraft that will help 'feel' damage Aug 22, 1:05 pm
London, Aug 22 (ANI): A British defense contractor is developing a system that allows the exterior of aircraft to "feel" damage or injury in a way similar to human skin.
Full Story
Researchers successfully hack Gmail app 9 out of 10 times: Report Aug 22, 12:23 pm
Washington, Aug 22 (ANI): A team of researchers have identified a flaw in Android, Windows and iOS mobile operating systems which allowed them to hack several apps including Gmail with a success rate of 82 to 92 percent.
Full Story
Comments

LATEST STORIES
TOP VIDEO STORIES
PHOTO GALLERY