This short BBC clip offers an excellent backgrounder to humanity's relationship with the moon.
The Moon takes a look at our closest neighbour in space. How was it viewed by our ancestors? What is its effect on the Earth and on people? Is it really made of cheese?
Time gives rhythm to the world around us. But how do we really know what time it is? In What Time Is It?, Professor Brian Cox goes in search of the answer to a question we don't give the time of day to. From our historical dictator of time - the sun - to the world's irregular flutters and the physical definition of a second by an atomic clock, Brian discovers telling the time is a tricky business.
The Paleolithic cave printings at Lascaux, France, have long been seen as astonishing examples of the artistic capacity of prehistoric cultures. But are they more then that? It is commonly known that 35,000 years ago, humans were brutish and primitive and their main activities were copulation, hunting and gathering. But what if this prehistoric human was clever enough to develop in depth scientific knowledge?
In this final episode, Simon Schaffer finds that as more people were able to manipulate light, the more puzzling and tricky it became. This led to investigations into the strange relationship between light, the eye and the mind, and the development of new technology such as photography and cinema.
Part three charts the discovery of the true nature of light and its impact on the modern world. All of today's technologies - electricity, mobile communications and our ability to illuminate the world 24 hours a day - stem from unravelling the mystery of light.
This four-part science series explores the phenomenon that surrounds and affects nearly every aspect of our lives but one which we take for granted: light.
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