Marianna P Ridderstad
University of Helsinki, Department of Physics, Department Member
- Archaeoastronomy, Bear Ceremonialism: Circumpolar and European, Folklore (Anthropology), Mythology, Ethnoastronomy, Cultural Astronomy, and 11 moreHistory of Astronomy, Minoan art and archaeology, Minoan Religion, Aegean Bronze Age (Bronze Age Archaeology), Cosmology (Anthropology), Neolithic Archaeology, Folklore, Viking Age Finland, Neolithic Europe, Neolithic Finland, and Astrobiologyedit
- PhD (archaeoastronomy), LicPhil (astron.), MSc (theor. phys.)edit
It is generally believed that the spread of inhumation burial in East-West oriented graves was one of the telltale signs of the arrival of Christianity in a region in Europe in the Iron Age. In Southern and Western Finland, the practise... more
It is generally believed that the spread of inhumation burial in East-West oriented graves was one of the telltale signs of the arrival of Christianity in a region in Europe in the Iron Age. In Southern and Western Finland, the practise of inhumation burial replaced cremation burial ca. 1000 – 1200 AD, in Eastern Finland and Karelia ca. 1100 – 1300 AD. The orientations of the first inhumations in Finland and Karelia were, however, generally not East-West oriented, but achieved that orientation only gradually. The examination of this gradual change reveals new details about the spread of Christianity in Finland. In this study, the orientations of 3173 inhumation burials in 48 graveyards dated from the Merovingian to the Medieval Period in Finland and Karelia have been measured and analysed, and compared with each other and the orientations of medieval churches of Finland. The results show that the most of the early graves were oriented towards the sunrise of the Easter Day, the equinoxes, the solstices, the mid-quarter days, or along the North-South line. The equinoctial, i.e. East-West orientations became more common than the Easter Day orientations only in the Medieval Period. The Easter Day orientations can be uniquely connected with Christianity, and their appearance can thus be connected to the Christianisation of a community with great probability. In Finland, the earliest Easter Day orientations appeared in the Eura-Köyliö region in the Viking Age ca. 850-950 AD, and elsewhere in Southern and Western Finland ca. 1000 AD. While the earliest Christianity in Finland cannot be connected to Eastern or Western Christian influences specifically, the appearance of graveyards dominated by equinoctial grave orientations in Finland Proper in ca. 1100 AD and elsewhere in Finland ca. 1250 AD at the earliest can be connected to the increased influence of the Roman Catholic Church in Finland.
Research Interests:
Ridderstad, M. (2017). Orientations of Late Neolithic to Bronze Age and Iron Age long cairns in coastal Finland. Culture and Cosmos 21(1), 73-86.
http://www.cultureandcosmos.org/abstracts/21-Ridderstad.php
http://www.cultureandcosmos.org/abstracts/21-Ridderstad.php
Research Interests:
Ridderstad. M. P. (2015). Orientations and other features of the Neolithic ‘giants’ churches’ of Finland from on-site and lidar observations. Journal of Astronomical History and Heritage 18(2): 135-148.
Research Interests:
Ridderstad, M. (2016). Orientations and placement of the Middle and Late Neolithic housepits in Ostrobothnia: a first investigation based on on-site and lidar observations. Suomen Museo 2015: 5-74.
Research Interests:
Ridderstad, M. (2016). In search of Päivätär, the Finnish solar goddess. In: The Materiality of the Sky, Proceedings of SEAC 2014, eds. F. Silva, K. Malville, T. Lomsdalen and F. Ventura. Studies in Cultural Astronomy and Astrology 8, pp.... more
Ridderstad, M. (2016). In search of Päivätär, the Finnish solar goddess. In: The Materiality of the Sky, Proceedings of SEAC 2014, eds. F. Silva, K. Malville, T. Lomsdalen and F. Ventura. Studies in Cultural Astronomy and Astrology 8, pp. 89-97.
Research Interests:
Ridderstad, M. (2014). 'The Great Oak: an annual calendric and agricultural fertility myth of the Baltic Finns'. Mediterranean Archaeology and Archaeometry 14(3): 319-330.
Research Interests:
Ridderstad, M. (2015). Solar and calendrical symbolism in the early medieval Finnish church murals. In: SEAC 2011 Stars and Stones: Voyages in Archaeoastronomy and Cultural Astronomy, Proceedings of the SEAC 2011 Conference, eds. F.... more
Ridderstad, M. (2015). Solar and calendrical symbolism in the early medieval Finnish church murals. In: SEAC 2011 Stars and Stones: Voyages in Archaeoastronomy and Cultural Astronomy, Proceedings of the SEAC 2011 Conference, eds. F. Pimenta, N. Ribeiro, F. Silva, N. Campion, A. Joaquinito and L. Tirapicos, pp. 280-285. British Archaeological Reports International Series 2720.
Research Interests:
Ridderstad, M. (2014). New observations of the Giant’s Churches. In: SEAC 2011 Stars and Stones: Voyages in Archaeoastronomy and Cultural Astronomy, Proceedings of the SEAC 2011 Conference, eds. F. Pimenta, N. Ribeiro, F. Silva, N.... more
Ridderstad, M. (2014). New observations of the Giant’s Churches. In: SEAC 2011 Stars and Stones: Voyages in Archaeoastronomy and Cultural Astronomy, Proceedings of the SEAC 2011 Conference, eds. F. Pimenta, N. Ribeiro, F. Silva, N. Campion, A. Joaquinito and L. Tirapicos, pp. 194-199. British Archaeological Reports International Series 2720.
Research Interests:
Ridderstad, M. (2017). Arkeoastronomia ja jätinkirkot. In: Tähtiuskomuksia ja megaliitteja - Näkökulmia arkeoastronomiaan. Suomen arkeoastronomisen seuran julkaisuja 1, pp. 7-32. Suomen arkeoastronominen seura ry., Helsinki.
Research Interests:
Ridderstad, M. (2015). Astronomy, religion and the structure of society in prehistoric Finland. In: Astronomy and Power: How Worlds Are Structured, Proceedings of SEAC 2010, eds. M. A. Rappenglück, B. Rappenglück, N. Campion and F. Silva,... more
Ridderstad, M. (2015). Astronomy, religion and the structure of society in prehistoric Finland. In: Astronomy and Power: How Worlds Are Structured, Proceedings of SEAC 2010, eds. M. A. Rappenglück, B. Rappenglück, N. Campion and F. Silva, pp. 101-105. British Archaeological Reports International Series 2794.
Research Interests:
Ridderstad, M. P. (2016). The Bear and the Year: On the origin of the Finnish Late Iron Age folk calendar and its connection to the bear cult. Mediterranean Archaeology and Archaeometry 16(4): 335-341.... more
Ridderstad, M. P. (2016). The Bear and the Year: On the origin of the Finnish Late Iron Age folk calendar and its connection to the bear cult. Mediterranean Archaeology and Archaeometry 16(4): 335-341.
maajournal.com/Issues/2016/Vol16-4/Full46.pdf
maajournal.com/Issues/2016/Vol16-4/Full46.pdf
Research Interests:
Full citation: Frank, Roslyn M. and Marianna Ridderstad (2013) Conflicts over masks, museums and tourism: Comparing European and Native American Traditions and Solutions. Presentation at the 34h Annual American Indian Workshop: Art of... more
Full citation: Frank, Roslyn M. and Marianna Ridderstad (2013) Conflicts over masks, museums and tourism: Comparing European and Native American Traditions and Solutions. Presentation at the 34h Annual American Indian Workshop: Art of Indians – Indians of Art, May 14-17, 2013, University of Helsinki, Finland.
Abstract
Roslyn M. Frank
Marianna Ridderstad
Conflicts over masks, museums and tourism: Comparing European and Native American Traditions and Solutions
The presentation begins by comparing certain contemporary conflicts and debates that have arisen in both Europe and N. America concerning the way that traditional masks worn by performers are carved and cared for, or, better stated, should be carved and cared for. The discussion will examine the impact of tourism and subsequent commercialization of the artifacts on the performances themselves and the way these pressures have impacted the production and sale of the masks, giving special attention to the ongoing debates over whether these masks should be commercialized at all and/or kept in a museum. The two study groups consist primarily, although not exclusively, of the masks and performances associated with the False Face Society of the Iroquois, on the one hand, and a kind of Alpine equivalent, the Tschäggättä performers of Switzerland, or stated more explicitly, the masked performers from the Löchtental of the Canton Valais in the Rhône Valley whose ritual activities are understood to bring good luck and health to those visited. Interviews with traditional carvers and performers will be discussed.
In the second part of the presentation other contemporary masking traditions in Europe and N. America will be examined, specifically, the masks and costumes of ‘bear performers’, including variants such as the Finnish Nuutti/Kekripukki. The accoutrements of these European 'bear maskers' will be compared to those found in N. America. At the same time, the comparative approach will serve to bring into focus the archaic pan-European belief that humans descended from bears since in many locations in Europe we still find a wide variety of bear-human performers, actors who dress as bears or bear-men and whose function is prophylactic, to confer good luck and health on those visited, masking traditions that have striking parallels among N. American indigenous peoples.
Roslyn M. Frank, Professor Emeritus at the University of Iowa, has done extensive fieldwork in the Basque Country, studying the language and beliefs of the Basque people, including the folk belief that holds Basques descended from bears. This led to subsequent investigations into circumpolar bear ceremonialism and to documenting residual evidence of the same in European traditional performance art. Her publications are in the area of Basque studies, cultural cognitive linguistics, and anthropology. For further information, cf. http://uiowa.academia.edu/RoslynMFrank.
Marianna Ridderstad has a Lic.Phil. in astrophysics and M.Sc. in theoretical physics, and is currently preparing her Ph.D. at the University of Finland on the archaeoastronomy of Neolithic stone monuments in Finland. Her research explores the archaeoastronomy of Finnish monuments from the Bronze Age to the Early Middle Ages, as well as ancient Finnish and Finno-Ugric folklore and traditions related to astronomical subjects, including the calendrical and ritual significance of the Bear. For further information, cf. http://helsinki.academia.edu/MariannaRidderstad.
Abstract
Roslyn M. Frank
Marianna Ridderstad
Conflicts over masks, museums and tourism: Comparing European and Native American Traditions and Solutions
The presentation begins by comparing certain contemporary conflicts and debates that have arisen in both Europe and N. America concerning the way that traditional masks worn by performers are carved and cared for, or, better stated, should be carved and cared for. The discussion will examine the impact of tourism and subsequent commercialization of the artifacts on the performances themselves and the way these pressures have impacted the production and sale of the masks, giving special attention to the ongoing debates over whether these masks should be commercialized at all and/or kept in a museum. The two study groups consist primarily, although not exclusively, of the masks and performances associated with the False Face Society of the Iroquois, on the one hand, and a kind of Alpine equivalent, the Tschäggättä performers of Switzerland, or stated more explicitly, the masked performers from the Löchtental of the Canton Valais in the Rhône Valley whose ritual activities are understood to bring good luck and health to those visited. Interviews with traditional carvers and performers will be discussed.
In the second part of the presentation other contemporary masking traditions in Europe and N. America will be examined, specifically, the masks and costumes of ‘bear performers’, including variants such as the Finnish Nuutti/Kekripukki. The accoutrements of these European 'bear maskers' will be compared to those found in N. America. At the same time, the comparative approach will serve to bring into focus the archaic pan-European belief that humans descended from bears since in many locations in Europe we still find a wide variety of bear-human performers, actors who dress as bears or bear-men and whose function is prophylactic, to confer good luck and health on those visited, masking traditions that have striking parallels among N. American indigenous peoples.
Roslyn M. Frank, Professor Emeritus at the University of Iowa, has done extensive fieldwork in the Basque Country, studying the language and beliefs of the Basque people, including the folk belief that holds Basques descended from bears. This led to subsequent investigations into circumpolar bear ceremonialism and to documenting residual evidence of the same in European traditional performance art. Her publications are in the area of Basque studies, cultural cognitive linguistics, and anthropology. For further information, cf. http://uiowa.academia.edu/RoslynMFrank.
Marianna Ridderstad has a Lic.Phil. in astrophysics and M.Sc. in theoretical physics, and is currently preparing her Ph.D. at the University of Finland on the archaeoastronomy of Neolithic stone monuments in Finland. Her research explores the archaeoastronomy of Finnish monuments from the Bronze Age to the Early Middle Ages, as well as ancient Finnish and Finno-Ugric folklore and traditions related to astronomical subjects, including the calendrical and ritual significance of the Bear. For further information, cf. http://helsinki.academia.edu/MariannaRidderstad.
Research Interests: Creative Writing, Screenwriting, Critical Theory, Languages, Religion, and 290 moreNative American Religions, Comparative Religion, Mythology And Folklore, History, Ancient History, European History, Cultural History, Cultural Studies, Psychology, Parapsychology, Native American Studies, European Studies, American Studies, Archaeology, Quantum Physics, Music, Musicology, Gender Studies, Anthropology, Folklore, Mythology, Psychological Anthropology, Historical Anthropology, Medical Anthropology, Philosophy, Aesthetics, Ethics, Iconography, Anthropology of Tourism, Art History, Indigenous Studies, New Media, Social Anthropology, Animal Science, Horticulture, Anthropology of Music, Publishing, Art, Theology, Film Studies, Zooarchaeology, Human-Animal Relations, Ethnoarchaeology, Popular Music, Basque Studies, Creativity, Cultural Heritage, Ethnography, New Testament, Literature, Social Philosophy, Feminist Theology, Linguistic Anthropology, Children's Literature, Animal Behavior, Ecopsychology, Animal Studies, Animal Ethics, Medieval, Critical Animal Studies, Political Anthropology, Anthropology of Knowledge, Cosmology (Anthropology), Historiography, Poetry, Anthropology of the Body, Anthropology of Performance, Environmental Anthropology, Ecological Anthropology, Folk Medicine, Opera, Feminist Philosophy, Anthropology Of Dance, Indigenous Religions, Altered States of Consciousness, Reproduction, Sexuality, Anthropology of Gender, European Ethnography, Native American Politics, Phenomenology, Psychedelics, Critical Race Theory, Alchemy, Magic, Anthropology of space, Australian Indigenous Archaeology, Oral history, Paleodiet, Old Testament, Shamanism, Museum Anthropology, Poetics, Gender, Swiss History, Swiss History, Evolutionary Anthropology, Biology, Humanistic psychology, Anthropology Of Art, Consciousness, Performance, Natural History, Paranormal, Writing, European Union, Evolution, Basque linguistics, Animal Cognition, Ethnography (Research Methodology), Native American Literature (Literature), Animal Welfare, Electronic Music, Native American Law, European Witch Trials, Animal Rights/Liberation, Animal Ecology, Native American, Taphonomy, Arts, Folklore (Literature), Experimental Music, Native Languages of the Americas, Nanotechnology, Linguistic ethnography, Cognitive Anthropology, Feminist Ethics, Naturalism, Philosophy of Quantum Mechanics, American Indian & Alaska Native, Environmental Sustainability, Migration (Anthropology), Spiritualism, Contemporary Poetry, Contemporary animism, Avant-Garde, Basque Diaspora, Basque History, Folklore Archeology, Entheogens, Anthropology of Consciousness, Animal Physiology, Witchcraft (Anthropology Of Religion), Human-Animal Relationships, Animal Behaviour, Cultural Anthropology, Swiss German Literature, Basque Theologians and Saints, Witchcraft, Religion and Magic, Ethnographic Methods, American Indian Literature, Anthropology of Shamanism, Kabbalah, Visual Arts, Animism, New Age spirituality, Dance, Early Modern European Witchcraft, Mythology, folklore and supersition, Archaeology of the Basque Country, History of Switzerland, Film, Hindu Philosophy, Native American Poetry, Native American Anthropology, Native American (History), Classical Music, Myth, Hibernation, Soundscape, Basque folklore, Latin America, Basque Art, Animal Ecology, Terrestrial Mammals, Conservation, Parapsychology, Anthropology, Mediumship, Phenomenology, Spiritualism, Paranormal, Supernatural, Folklore, Religion, Sociology, Experience, Herbalism, Austria (Archaeology), Comunicación y cultura, Patrimonio Cultural, Native American Indian Studies, Remix, American and Native American History, History of magic, WWII, Rituals, Middle Ages, Native American history, Native American Philosophy, Basque Politics, Basque Conflict, Sex ratio, Sound healing, Editing, Bears, Fairy tales, Sociology and Anthropology, Animals, Egyptian Studies, Witchcraft, Cultura, Brain Science, Shamanism, Pagan studies, Animism, Native Americans, Political Philosphy, Folk magic, Shamanism and Shamanic Healing, Covers, First Nations, Basque, Basque Literature, Basque Identity, Basque nationalism, Delayed Implantation, Switzerland, Traditional Witchcraft, Esoteric Prayer, Magical Fetishism, Charming Traditions, Western Magical Tradition, History of the Body, Witch Hunts, Native American Graves Protection and Repatriation Act (NAGPRA), Mediumship, Healing, DJ, Chaco Canyon, Stove Tiles, Austrian Studies, Swiss Art, Yarimburgaz Cave Turkey, Native American Languages, Archaeology in Switzerland, Native American spirituality, Folk, Brain Research, Basque Language, Basque Dialectology, Brown Bears, Polar Bears, Trance, Cave Bears, The Senses, Pueblos indígenas, Paranthropology:, Literature in Switzerland, Basque culture, Creative Nonfiction, Bears, Alaska history, Bear Ceremonialism: Circumpolar and European, Native American and Indigenous Studies, Cultural Genocide, Swiss Archaeology, Catalan and Basque nationalism, language maintenance and revival, culture and politics, Anthropology of Religion, Grizzly bears, Creative Flow, Anasazi, Word Flow, African Popular Culture, Philosophy and Sociology of Human/animal Relations, Archeology, Anthropology Of Religion & Art, Nutrient Partitioning, Healing Ceremonies, Beliefs & Values, Magic and Esoterism, Animal Lore, Toltec Dreaming, Khazar Shamanism, Pseudopregnancy, Embryonic Diapause, Oneness of Life, Quantum Physics (From a Spiritual Perspective), Southwest, San Juan Basin, Cultural Survival, Neo shamanism, Costumbres, Malaysian Magic and Folklore, Traditional Shamanism, Historical Cultural Studies, Music and Performing Arts, Age Structure, Metric Analysis, Light Isotopes, Mediterranean Cave Faunas, Grimoire Tradition, Shaman Practice, Depth-Psychology, and Transformation Through Story
Research Interests:
Ridderstad, M. (2015). Nokian kartanokappelin ”riimukivi”. Pirkanmaan alta 15: 40-47.
https://issuu.com/vapriikki/docs/pma_15_n
https://issuu.com/vapriikki/docs/pma_15_n
Research Interests:
We have analyzed the properties of dust in the high galactic latitude translucent cloud Lynds 1780 using ISOPHOT maps at 100 and 200 micrometers and raster scans at 60, 80, 100, 120, 150 and 200 micrometers. In far-infrared (FIR)... more
We have analyzed the properties of dust in the high galactic latitude translucent cloud Lynds 1780 using ISOPHOT maps at 100 and 200 micrometers and raster scans at 60, 80, 100, 120, 150 and 200 micrometers. In far-infrared (FIR) emission, the cloud has a single core that coincides with the maxima of visual extinction and 200um optical depth. At the resolution of 3.0 arcmin, the maximum visual extinction is 4.0 mag. At the cloud core, the minimum temperature and the maximum 200um optical depth are 14.9+/-0.4 K and 2.0+/-0.2x10^{-3}, respectively, at the resolution of 1.5 arcmin. The cloud mass is estimated to be 18M_{SUN}. The FIR observations, combined with IRAS observations, suggest the presence of different, spatially distinct dust grain populations in the cloud: the FIR core region is the realm of the "classical" large grains, whereas the very small grains and the PAHs have separate maxima on the Eastern side of the cold core, towards the "tail" of this cometary-shaped cloud. The color ratios indicate an overabundance of PAHs and VSGs in L1780. Our FIR observations combined with the optical extinction data indicate an increase of the emissivity of the big grain dust component in the cold core, suggesting grain coagulation or some other change in the properties of the large grains. Based on our observations, we also address the question, to what extent the 80um emission and even the 100um and the 120um emission contain a contribution from the small-grain component.
The aim of this study was to evaluate the benefits of the simultaneous use of two different analytical methods, namely Fourier transform infrared spectroscopy (FTIR) and mass spectrometry (MS), for online analysis of environmental and... more
The aim of this study was to evaluate the benefits of the simultaneous use of two different analytical methods, namely Fourier transform infrared spectroscopy (FTIR) and mass spectrometry (MS), for online analysis of environmental and process samples. A mathematical method ( ...
Research Interests:
This paper proposes a new maximum likelihood approach for the deconvolution of identity and quantity of individual compounds based on the multicomponent mass spectra measured by mass spectrometry (MS). Mixture analysis of multicomponent... more
This paper proposes a new maximum likelihood approach for the deconvolution of identity and quantity of individual compounds based on the multicomponent mass spectra measured by mass spectrometry (MS). Mixture analysis of multicomponent mass spectra is, typically, based on a linear multicomponent mass spectrum model, where the compounds of the measured spectra to be solved are explicitly stated and assumed to be known. In many cases, however, the measured spectrum may contain unknown compounds that are not explicitly stated in the model and a commonly used least square (LS) solution fails. Moreover, a standard improvement over the LS method in these cases, namely the M-estimation (ME) approach, also suffers from this same problem. Our method overcomes the limitations of the LS and ME methods by modeling the effect of the unknown compound(s) to the residual of the linear model. The experimental results presented show that this new approach can separate more robustly the complex multicomponent mass spectra into their individual constituents compared to the LS and ME methods.
Research Interests:
by Frank, R. M. & Ridderstad, M. "The presentation begins by comparing certain contemporary conflicts and debates that have arisen in both Europe and N. America concerning the way that traditional masks worn by performers are carved... more
by Frank, R. M. & Ridderstad, M.
"The presentation begins by comparing certain contemporary conflicts and debates that have arisen in both
Europe and N. America concerning the way that traditional masks worn by performers are carved and
cared for, or, better stated, should be carved and cared for. The discussion will examine the impact of
tourism and subsequent commercialization of the artifacts on the performances themselves and the way
these pressures have impacted the production and sale of the masks, giving special attention to the
ongoing debates over whether these masks should be commercialized at all and/or kept in a museum. The
two study groups consist primarily, although not exclusively, of the masks and performances associated
with the False Face Society of the Iroquois, on the one hand, and a kind of Alpine equivalent, the
Tschäggättä performers of Switzerland, or stated more explicitly, the masked performers from the
Löchtental of the Canton Valais in the Rhône Valley whose ritual activities are understood to bring good
luck and health to those visited. Interviews with traditional carvers and performers will be discussed.
In the second part of the presentation other contemporary masking traditions in Europe and N. America
will be examined, specifically, the masks and costumes of ‘bear performers’, including variants such as
the Finnish Nuutti/Kekripukki. The accoutrements of these European 'bear maskers' will be compared to
those found in N. America. At the same time, the comparative approach will serve to bring into focus the
archaic pan-European belief that humans descended from bears since in many locations in Europe we still
find a wide variety of bear-human performers, actors who dress as bears or bear-men and whose function
is prophylactic, to confer good luck and health on those visited, masking traditions that have striking
parallels among N. American indigenous peoples."
"The presentation begins by comparing certain contemporary conflicts and debates that have arisen in both
Europe and N. America concerning the way that traditional masks worn by performers are carved and
cared for, or, better stated, should be carved and cared for. The discussion will examine the impact of
tourism and subsequent commercialization of the artifacts on the performances themselves and the way
these pressures have impacted the production and sale of the masks, giving special attention to the
ongoing debates over whether these masks should be commercialized at all and/or kept in a museum. The
two study groups consist primarily, although not exclusively, of the masks and performances associated
with the False Face Society of the Iroquois, on the one hand, and a kind of Alpine equivalent, the
Tschäggättä performers of Switzerland, or stated more explicitly, the masked performers from the
Löchtental of the Canton Valais in the Rhône Valley whose ritual activities are understood to bring good
luck and health to those visited. Interviews with traditional carvers and performers will be discussed.
In the second part of the presentation other contemporary masking traditions in Europe and N. America
will be examined, specifically, the masks and costumes of ‘bear performers’, including variants such as
the Finnish Nuutti/Kekripukki. The accoutrements of these European 'bear maskers' will be compared to
those found in N. America. At the same time, the comparative approach will serve to bring into focus the
archaic pan-European belief that humans descended from bears since in many locations in Europe we still
find a wide variety of bear-human performers, actors who dress as bears or bear-men and whose function
is prophylactic, to confer good luck and health on those visited, masking traditions that have striking
parallels among N. American indigenous peoples."
Lectio Praecursoria given in the public examination of my PhD dissertation in the University of Helsinki 22.10.2015 and consequently published in the journal Ennen ja nyt, Historian tietosanomat.
Ridderstad, M. (2017). Punainen Sirius ja dogonien tähtivieraat. Tähdet ja avaruus 8/2017: 40-44.
Research Interests:
Ridderstad, M. (2017). Uusi aamunkoitto viikinkiajan Suomessa. Tähdet ja avaruus 2/2017: 18-23.
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Tähdet ja Avaruus 3/2015, s. 40-44
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Tähdet ja Avaruus 4/2009, s. 14-20
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Tähdet ja Avaruus 6/2013, s. 14-18
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Tähdet ja Avaruus 5/2015, s. 40-47
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Tähdet ja Avaruus 5/2014, s.28-35
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Tähdet ja Avaruus 3/2014, s. 36-39
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Tähdet ja Avaruus 4/2013, s. 38-43
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Tähdet ja Avaruus 6/2015, s. 34-39
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Tähdet ja Avaruus 8/2012, s. 14-21
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Tähdet ja Avaruus 3/2012, s. 18-22
"Yksi Euroopan tunnetuimmista neoliittisen ajan yhteisöistä oli Tanskan megaliittikulttuuri. Uusin tutkimus kertoo, että sen käytävähaudat suunnattiin nousevaan täysikuuhun ja kuunpimennyksiin."
"Yksi Euroopan tunnetuimmista neoliittisen ajan yhteisöistä oli Tanskan megaliittikulttuuri. Uusin tutkimus kertoo, että sen käytävähaudat suunnattiin nousevaan täysikuuhun ja kuunpimennyksiin."
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Tähdet ja Avaruus 8/2010, s. 36-41
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Tähdet ja Avaruus 1/2009, s. 24-27
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Tähdet ja Avaruus 4/2007, s. 20-22
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Tähdet ja Avaruus 2/2009, s. 26-31 "Temppelikaupunki Teotihuacanin historia on pitkälti hämärän peitossa. 1970-luvun alussa suurimman pyramidin alta löytyi luolasto, johon voi kätkeytyä syy koko kaupungin perustamiseen. Nyt luoliin... more
Tähdet ja Avaruus 2/2009, s. 26-31
"Temppelikaupunki Teotihuacanin historia on pitkälti
hämärän peitossa. 1970-luvun alussa suurimman
pyramidin alta löytyi luolasto, johon voi kätkeytyä
syy koko kaupungin perustamiseen.
Nyt luoliin pystytetään myoni-ilmaisimia, jotka
paljastavat pyramidin sisukset."
"Temppelikaupunki Teotihuacanin historia on pitkälti
hämärän peitossa. 1970-luvun alussa suurimman
pyramidin alta löytyi luolasto, johon voi kätkeytyä
syy koko kaupungin perustamiseen.
Nyt luoliin pystytetään myoni-ilmaisimia, jotka
paljastavat pyramidin sisukset."
Tähdet ja Avaruus 2/2008, s. 36-41
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Tähdet ja Avaruus 3/2008, s. 38-42
"Goseckin aurinko-observatorio on lajinsa muinaisin
tunnettu rakennelma. Vuonna 2003 paljastui, että
tällä paikalla tarkkailtiin ja ennustettiin taivaanilmiöitä
jo 7000 vuotta sitten."
"Goseckin aurinko-observatorio on lajinsa muinaisin
tunnettu rakennelma. Vuonna 2003 paljastui, että
tällä paikalla tarkkailtiin ja ennustettiin taivaanilmiöitä
jo 7000 vuotta sitten."
Research Interests:
Tähdet ja Avaruus 1/2007, s. 13-18
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Raportti asuinpainannesuuntausprojektin aikana 2013-2014 havaituista uusista lidar-kohteista sekä kenttähavainnoista. Tutkimusjulkaisun viite: M. Ridderstad, "Orientations and placement of the Middle and Late Neolithic housepits in... more
Raportti asuinpainannesuuntausprojektin aikana 2013-2014 havaituista uusista lidar-kohteista sekä kenttähavainnoista. Tutkimusjulkaisun viite: M. Ridderstad, "Orientations and placement of the Middle and Late Neolithic
housepits in Ostrobothnia: a first investigation based on on-site and lidar observations", Suomen Museo 2015: 5-74.
housepits in Ostrobothnia: a first investigation based on on-site and lidar observations", Suomen Museo 2015: 5-74.