Latest News (-in last month or so)
CORONAVIRUS UPDATE 13 March 2020 - The committee has consulted with members and has decided to cancel future meetings for several months, until further notice.
On 9 March 2020 John Davidson gave a talk on Earthquakes and their Effect on Structures. John Davidson taught geography, geology and world development at Exeter School until 2018, and was a member of the school’s senior management team. John has travelled extensively studying physical geography and writing articles on landscapes and natural hazards. He is a Fellow of the Royal Geographical Society and a member of the Geographical Association. His talk used examples of earthquakes from different parts of the world to show how hazardous they can be, and why some structures survive and others fail. Every day the earth experiences over fifty measurable earthquakes, and over a thousand a year have a magnitude of 5 or more, making them potentially hazardous. Earthquakes are hard to predict but property and infrastructure can be designed to reduce the impact of earthquakes. John showed many examples from around the world and included the effects of tsumnamis. Liquefaction of alluvial soil and made ground is amajor cause of building failures, and ground lowering, by up to 2 metres can reduce the effective height of sea defences against tsunamis, as happened in Japan with disastrous effects. The talk concluded by looking at methods of predicting earthquakes from seismic waves and providing warnings to areas at risk.
See our News Archive for previous entries.
Our next talk on 6 April 2020 was to be "The story of Human Evolution" by Brian Banks. However it has now been cancelled due to Coronavirus
There will be two visits to Axminster Carpets in March. Our secretary will send out emails to all members.
See our EVENTS page for full programme.