Facebook also looks to be testing the quality, size and positioning of images on the news feed, which was just redesigned this week.

FORBES: Google+ Gets A Jump On Facebook

Mr Mahdavi says his technique could control the size and positioning of the bubbles in such foam, and so determine the material's strength and rigidity.

ECONOMIST: MONITOR

Mr. Ferguson said he is confident Cadillac new lineup can take on the Germans by more directly positioning its cars in the same size and price categories of the German brands.

WSJ: Can the New Cadillac CTS Catch Up to BMW?

In addition to volume and equalizer control, this application allows the user to browse the audio sources connected to the speaker or to adjust the Zikmu Solo's audio settings according to the size of the room ('Room Size Compensation') and the position of the speaker in the room ('Room Positioning'), that is to say 'standard' position, in a corner or against a wall.

ENGADGET: Parrot Zikmu Solo reaches US in November, makes a tower of wireless sound yours for $999