Photographs and movies of UFOs. Pursuits of UFOs by planes in the skies, by ships at sea and by cars on open highways. Physiological and psychological effects, such as electric shock, radiation burns, dimming of vision, blackouts, temporary paralysis, headaches, blood disorders, nightmares and dreams, reported by observers in close UFO encounters, both in the air and on the ground. Electromagnetic interference reports caused by UFOs on compasses, plane and car motors, headlights, houselights, searchlights, radar beams, radios, TV, power-stations and other instruments and communication devices. Skyquakes, explosions and sonic booms in the skies during UFO appearances.
Propulsion sounds and smells attributed to UFOs.
Straight lines of flight related to UFOs, along with their other kinematic, geometric and luminescent characteristics. Reputable sightings by scientists, astronauts, engineers, astronomers and other trained observers of UFOs. Several hundred cases of human kidnappings, abductions, physical examinations, etc. Revolving wheel-like machines in oceans, seas and vast masses of water reported by ship and plane crews and passengers, and other witnesses nearby. Depressions, craters, denuded vegetation, holes, ground markings, burned areas and landing-gear marks on the ground due to UFO landings worldwide.