What types of observation reports are discussed?
In the UFO casebooks, it is easy to find a subset of fully detailed obserations reports for which the plasma explanation can in no way be validated. Philip Klass seems to take for granted that UFOs manifests only visually in the form of more or less vaguely spherical amorphous blobs, misty or fuzzy, glowing or luminous. However UFOs, sometimes, are also reported as visually clear cut objects, solid, structured, having a geometry which is incompatible with the ball lightning phenomena, such as forms cylindrical, parrallelipipedic, disc with various types of protrusions such as domes and rings and so on. The texture of the observed phenomena is sometimes described as definitely solid, metallic looking, non luminous, non glowing, and the colors dark or divided into colours according to geometrical limits’ (dark tops and light bottoms, rings of a different colour than the body for example, are not accomodent with a plasma explanation.) Other observation reports include clear descriptions o
