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What was Adria?

Despite more than two hundred years of geological investigations, there are still huge unanswered questions regarding the Alps. Given my own geographical bias towards the extreme northern Adriatic, one question in particular dominates my thought. What was Adria?

A scientific hatchet job

Scientific debate can sometimes be carried on in a most unscientific fashion, even by the most reputable of scientists. An article by Professors Alice Roberts and Mark Maslin entitled “Sorry David Attenborough, we didn’t evolve from ‘aquatic apes’ – here’s why”, first published in Scientific American, is a good example.

Apolaki and Anagolay: closely related LIPs

From the 12th to the 14th of September this year the 15th Emile Argand Conference on Alpine Geological Studies is being held in Ljubljana and on the final day of the conference I am down to give the keynote address. I shall be talking about the Philippines, and I shall be building my talk around the Tagalog mother and son deities Anagolay and Apolaki. How can that possibly be?

Shark Bay: a problem with pendulums

Louis de Freycinet elected not to use the method of coincidences when making pendulum observations on hos circumnavigation in the Uranie. There are, however, all sorts of difficulties in discovering what he actually did do.

Airy’s error

The experiment described by George Airy in his 1857 paper entitled “Account of pendulum experiments undertaken in the Harton colliery, for the purpose of determining the mean density of the Earth” produced an estimate of the mean density of the Earth that was 20% in error. Why was this?

Airy under ground

After his failure to measure the mean density of the Earth in the Dolcoath mine in Cornwall in 1826, George Airy waited 30 years before making another attempt. For this he went to the Harton Pit near South Shields and used innovations such as electrical signalling. But was he any more successful?