Line of Sight. A requirement of current UK law and this means that the pilot can see their aircraft with the naked eye while flying

National Endowment for Science, Technology and the Arts. Nesta is an innovation foundation, based in the UK and supported by a financial endowment. They carry out a lot of research into how drones can be used to meet the challenges of today's world.

Lithium Ion Polymer Battery. The most commonly used type of battery used in a drone because of the high transfer rate meaning extremely fast energy release is possible.

Light Detection and Ranging. This is a method of survey that measures the distance to a target by illuminating it with pulses of light and measuring the pulses that are reflected back. Common uses for LIDAR would be sea floor or forest mapping and it has recently found a use in precision agriculture.

Instrument Flight Rules. IFR means that a pilot can fly using just the data supplied by the aircraft's instruments, rather than using visual information. The other set of regulations are VFR (Visual Flight Rules)