Control your computer using gestures 

Earlier this year, Apple patented a motion-sensor technology that would let you control your computer by just moving your hands in the air. The technology has been around for a while - HP's Leap Motion laptop was launched in 2012 - but as we spend more and more time in front of computers, it's growing ever more appealling. RIP RSI.

A hotel in space 

Russian company Orbital Technologies reckons it'll be sending tourists into space as early as next year. Guests would zoom up to the Commercial Space Station on a rocket, then spend their time in one of the station's four cabins enjoying zero gravity and watching earth through the ship's giant portholes. And this is only the beginning: Mashable has totted up nine commercial companies planning to send normal people into space over the next decade or so.