Astronomy Talks - Time travel

Time travel - Is it possible?In this presentation we will consider time as the fourth dimension and introduce Einstein’s relativity theories – where different observers can agree on the value of the speed of light irrespective of their own motion!This leads to some very strange but experimentally proven consequences – time dilation, length contraction and mass increase as speed increases.

We will also consider time travel – is it, or will it ever be possible?We will discuss the famous ‘twins paradox’ – where it may be possible to travel to the future! However, in modern astronomy and cosmology – looking out in distance = looking back in time – looking into the past – we can look but will probably never be able to travel back in time – we will discuss the reasons why.About the LecturerOur Astronomy Talks will be brought to you by Dr Fred Stevenson.

Dr Stevenson obtained a degree in Physics with Astrophysics from the University of Leicester in 1980 followed by a PhD in Cosmology from Durham University in 1986.After further research he has spent the past twenty five years teaching adult education classes in astronomy, physics and mathematics at a variety of venues throughout Northumberland, County Durham and North Yorkshire.He has organized and taught numerous weekend courses in astronomy based in the Kielder forest park and other venues in the North Pennines.Fred is passionate about talking to the public about astronomy and has given numerous talks to astro societies and other groups.When he is not teaching Fred can be found wandering the moors and fells of the North of England and also in our Theatre bringing you these very exciting talks.