Mr Pelling got involved in the area when he came across a reference on the internet to a research paper published in 1959 by a Spanish optometrist and amateur historian by the name of Simon de Guilleuma.

BBC: Controversy over telescope origin

As he says this, the camera pans upwards to show an aircraft carving a line across the clear blue sky, a reference to both the double standards of Larson's patriotism and the secret that drives him on.

ECONOMIST: Sundance film festival

Violence intensified across Syria on Friday, and Ban made reference to the violence in Aleppo, the nation's most populous city.

CNN: STORY HIGHLIGHTS

The Welsh Government's submission makes pointed reference to their desire to see four administrations across the UK without a relationship of "hierarchy".

BBC: Shopping lists and top tables

They are believed to use the position of the sun as a reference point and can compensate for its movement across the sky when calculating the route they need to return home.

BBC: Bee brains help to make robots smarter

Our Gobi fifth generation reference platform helps ensure that OEMs can develop products across their choice of operating systems and hardware platforms to meet the growing demand for mobile connectivity.

ENGADGET: Qualcomm's fifth gen Gobi unveiled, supports a Lollapalooza of LTE, 2G / 3G bands

The young hero, Hugo Cabret, through a series of events outside his control, lives a clandestine life in a grand but unnamed train station in Paris and spends his days winding the enormous clocks which are the unerring reference points for the coming and going of trains connecting all the legendary capitals of Europe across its ancient timeless landscapes.

FORBES: Scorsese's Hugo And The Precious Virtues of Analog Time