{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/69507dcfe30db7c5d8e0c562/6a7275a528ead4902c0a87ba?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Portals and Landing Sites for Extraterrestrials","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/69507dcfe30db7c5d8e0c562/1785885662953-af9d9a22-a35d-45c6-8531-1738d7e15ac5.jpeg?height=200","description":"<p><strong>Is the Ring of Brodgar a stargate built with technology that we do not possess today, where spacecraft used the portal to travel between star systems?</strong></p><p><strong>Magnesium and quartz have been found at the site. Quartz can vibrate under pressure and could therefore, in theory, enable transportation.</strong></p>","author_name":"Alternativ Historia "}