The Norse merman as an optical phenomenon

  title={The Norse merman as an optical phenomenon},
  author={Waldemar H. Lehn and Irmgard I. Schroeder},
Mediaeval Norse writings that describe the merman are considered accurate observations of a natural phenomenon. Images of common sea mammals, severely distorted by strong, non-uniform atmospheric refraction, fit the mediaeval descriptions remarkably well. Three examples are presented: computer-generated images of a killer whale and a walrus, and a photograph of a suitably distended boulder. The mediaeval correlation of a merman sighting with the advent of storms is also verified. 

Simulation of mirages.

A mirage simulator that uses digital imaging equipment to generate mirage images from normal photographs and shows that, while the atmosphere can change the size or shape of an object, it does not change its apparent brightness.

The hafstramb and margygr of the King's Mirror: an analysis

Greenland and Iceland are described with unusual scientific accuracy in the King's Mirror. However this thirteenth-century manuscript contains a few ‘wonders’ that appear more mythological than

Mirages at Lake Geneva: the Fata Morgana.

The first photographs of Fata Morgana mirages are shown, including a real-time video, and their main features are explained, which are due to the very turbulent entrainment zones of capping inversions, especially in valley circulations.

Ethnobiology and Shifting Baselines: An Example Reinterpreting the British Isles’ Most Detailed Account of a Sea Serpent Sighting as Early Evidence for Pre­Plastic Entanglement of Basking Sharks

  • R. France
  • Environmental Science
    Ethnobiology and Conservation
  • 2019
Recognizing shifts in baseline conditions is necessary for understanding long­term changes in populations as a prelude to implementing present­day management actions and setting future restoration

Early entanglement of Nova Scotian marine animals in pre-plastic fishing gear or maritime debris: indirect evidence from historic ‘sea serpent’ sightings

  • R. France
  • Environmental Science
    Proceedings of the Nova Scotian Institute of Science (NSIS)
  • 2020
Marine environmental historians and ethnobiologists have resorted to imaginative means with which to back-cast the temporal frame of reference in order to assess recent anthropogenic changes. The

Luftspiegelungen: Oasen, Seeungeheuer und weitere Spielereien der Fata Morgana

  • M. Vollmer
  • Art
    Atmosphärische Optik für Einsteiger
  • 2019
Eine Luftspiegelung ist das vielleicht alltaglichste Beispiel einer Naturerscheinung in der Atmosphare, obgleich sie im Allgemeinen selten bewusst wahrgenommen wird. Dieses optische Phanomen bietet

The lacunae of science: observing the unobserved in the practices of knowledge

Abstract The purpose of this paper is to address the interstitial spaces that exist not only between disciplinary methods, but often even within distinct modes of inquiry guided by their own strict

Antropologie als mythe

Tylor, Frazer, Levy-Bruhl, Mauss, Malinowski, Levi-Strauss, zij alien en vele andere antropologen bestudeerden ze: de my then van zogenaamd archaische en primitieve volken. Elk ontwikkelde er

Gespiegelt in besondern Düften …: Oasen, Seeungeheuer und weitere Spielereien der Fata Morgana

„Wer die Natur liebt, der braucht das Beobachten ihrer Erscheinungen wie die Luft zum Atmen.”︁ — So formulierte Marcel Minnaert das Bedürfnis der Naturbeobachtung im Vorwort seines berühmten Buchs



Atmospheric Refraction and Lake Monsters

  • W. Lehn
  • Environmental Science
  • 1979
A survey of reported sightings of lake monster phenomena suggests that many of them may be attributable to atmospheric image distortion, and the extent of the distortion that can occur is demonstrated.

The Novaya Zemlya effect: An arctic mirage

The arctic mirage is an atmospheric refraction phenomenon caused by a temperature inversion in the lower atmosphere. It is classified into three basic types, two of which (hillingar and hafgerdingar

Computer-graphics analysis of atmospheric refraction.

This program provides an essential aid to the study of atmospheric refraction.

The Brendan voyage