Road Grader Finds a Letter That Shouldn't Exist: The Meridian Letter
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Road Grader Finds a Letter That Shouldn't Exist: The Meridian Letter
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Fear and curiosity collide: a sealed cream envelope, dry on its underside after seven hours of continuous snowfall, appears on a locked desert access road and contains three numbers that match a radio pulse Emily Stein recorded seven hours earlier-who mailed it from Tucson and how did it arrive on a road where no mail carrier stops?
In this episode, we follow the sequence of events as recorded by instruments, weather logs, and eyewitness accounts to lay out the timeline and the unanswered question: what connects the postmarked envelope from Tucson to the pulse sequence Emily logged at 2:17 a.m.?
Person: Emily Stein
Event: Pulse sequence at 2:17 a.m. on 408 MHz
Date: November 14, 2011
Location: Meridian Ridge Observatory access road, southern Arizona
Person: Harvey Griffin
- Snow began falling at 9:12 p.m. the previous evening and continued until 4:30 a.m., creating two inches of accumulation.
- Harvey Griffin found the sealed 9x12 cream envelope at 5:47 a.m. lying face-up in the center of the road with the underside completely dry.
- Emily logged a pulse sequence on the 408 MHz band at 2:17 a.m. consisting of three pulses, pause; five pulses, pause; two pulses, then silence, running about forty minutes.
- The envelope contained a single sheet with the numbers "3 5 2" and a handwritten note with eight words: "count the pulses, Em. You'll have seen them by the time you read this."
- The envelope bore a Tucson return address and a postmark dated the same morning it was found, despite the access road receiving no mail deliveries.
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