- Alexander Thom
Professor Alexander Thom (1894–1985) was a Scottish engineer most famous for his theory of the
Megalithic yard and his studies ofStonehenge and other archaeological sites.Life and work
Thom was a graduate of the
University of Glasgow who returned there and worked as alecturer from 1922 to 1939. He later was aprofessor of engineering at theUniversity of Oxford where he became interested in the methods thatprehistoric peoples used to buildmegalithic monument s. Thom became especially interested in thestone circle s of theBritish Isles andFrance [Hutton, Ronald "The Pagan Religions of the Ancient British Isles" Blackwell Publishing 1993 ISBN 9780631189466 p. 111 [http://books.google.co.uk/books?id=ifjw5Ce_NgEC&pg=RA1-PA1&dq=Thom+stone+circles+british+isles&ei=lU_mSIyyEpGgswPyyP3VDw&client=firefox-a&sig=ACfU3U24Ft-H4YH62av-LwPh2Zg5pk5vEg] ] and their astronomical associations. Thom travelled in the company of his son Archie, measuring prehistoric sites and analysing the data created.In 1955, Alexander Thom published [http://www.jstor.org/pss/2342494 "A statistical examination of megalithic sites in Britain"] in which he first suggested the
megalithic yard as a standardised prehistoric measurement. He also attempted to classify stone circles into different morphological types.Thom went on to identify numerous solar orientations at stone circles which led him to argue for a prehistoric calendar of 8 '
month s' divided bymidsummer ,midwinter and the twoequinox es and then subdivided by early versions of the modernChristian festivals ofWhitsun ,Lammas ,Martinmas andCandlemas (seeScottish Quarter Days ). He explored these topics further in his later books, "Megalithic sites in Britain" (Oxford, 1967), "Megalithic lunar observatories" (Oxford, 1971) and "Megalithic Remains in Britain and Brittany" (Oxford, 1978), the last written with his son Archie after they carried out a detailed survey of theCarnac stones from 1970 to 1974.Thom's ideas met with resistance from the
archaeological community but were welcomed amongst elements of 1960scounter-culture . Along withGerald Hawkins ' new interpretation ofStonehenge as anastronomical 'computer' (seeArchaeoastronomy and Stonehenge ), Thom's theories were adopted by numerous believers in the lost wisdom of the ancients and became commonly associated withpseudoscience , which saddened him greatly.That stone circles had some astronomical significance to Neolithic peoples is nowadays rarely disputed and Thom has been partly, if not wholly, vindicated although his megalithic yard is still a contentious topic.
The
Thom Building , housing the Department of Engineering Science at Oxford, built in the 1960s, is named after Alexander Thom.ee also
*
Archeoastronomy Publications
A Selection
*
*
*
* 1990. Thom, Alexander and Burl, Aubrey "Stone Rows and Standing Stones: Britain, Ireland and Brittany" B.A.R. 1990, ISBN 9780860547082References
External links
* [http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?db_key=AST&db_key=PRE&qform=AST&arxiv_sel=astro-ph&arxiv_sel=cond-mat&arxiv_sel=cs&arxiv_sel=gr-qc&arxiv_sel=hep-ex&arxiv_sel=hep-lat&arxiv_sel=hep-ph&arxiv_sel=hep-th&arxiv_sel=math&arxiv_sel=math-ph&arxiv_sel=nlin&arxiv_sel=nucl-ex&arxiv_sel=nucl-th&arxiv_sel=physics&arxiv_sel=quant-ph&arxiv_sel=q-bio&sim_query=YES&ned_query=YES&aut_logic=OR&obj_logic=OR&author=thom%0D%0A&object=&start_mon=&start_year=1900&end_mon=&end_year=1985&ttl_logic=OR&title=&txt_logic=OR&text=&nr_to_return=200&start_nr=1&jou_pick=ALL&ref_stems=&data_and=ALL&group_and=ALL&start_entry_day=&start_entry_mon=&start_entry_year=&end_entry_day=&end_entry_mon=&end_entry_year=&min_score=&sort=SCORE&data_type=SHORT&aut_syn=YES&ttl_syn=YES&txt_syn=YES&aut_wt=1.0&obj_wt=1.0&ttl_wt=0.3&txt_wt=3.0&aut_wgt=YES&obj_wgt=YES&ttl_wgt=YES&txt_wgt=YES&ttl_sco=YES&txt_sco=YES&version=1 Thom's publications at the Astrophysics Data System]
* [http://www.britannia.com/wonder/thom.html Biography]
** [http://assets.cambridge.org/052157/2916/sample/0521572916web.pdf "Astronomy before History, by Clive Ruggles and Michael Hoskins, a chapter from the Cambridge Concise History of Astronomy, Michael Hoskin ed., 1999]
Wikimedia Foundation. 2010.