Turns out they weren't so empty -- the Ear Force N11 and NLa headsets are so lightweight, we didn't even notice they were there.

ENGADGET: Turtle Beach Ear Force NLa and N11 stereo Wii U headsets hands-on (video)

The Unoccupied Properties Act has come into force, removing the 50% rates discount for empty premises and making firms liable for 90% of the charge.

BBC: Empty shops

Solar Wind Energy (which used to be called Clean Wind Energy Tower, Inc.) is negotiating for a lease from the Bureau of Land Management (BLM) for a 1, 700-acre parcel of flat, empty desert on the Mexican border, right next to an Air Force bombing range.

FORBES: Massive Energy Skyscraper Proposed On U.S.-Mexico Border

Teachers and pupils both know that teachers cannot use force - and that parents would not tolerate the use of force - so an aggressive manner would soon be seen as an empty threat.

BBC: NEWS | UK | Education | Lesson discipline 'needs parents'