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San Carlos Public Library

Friday, October 12, 2018, 2-4pm. We're currently scheduling our fall 2018 events for the month of October. If you would like PPI to come to your San Diego Branch Public Library, college campus, or other learning institution, contact This email address is being protected from spambots. You need JavaScript enabled to view it..

honoring the heroes of

skeptical inquiry

False Positive: When an event of interest has been misidentified as “proof positive” or “evidence,” but is later explained or discounted, it is recognized as a false positive.

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Intelligent Haunts: You’re Not Alone

Of the three most commonly reported types of haunting phenomena, the intelligent haunt is by far the most intriguing. Reports of intelligent haunts have been recorded for thousands of years by every culture around the world. Are there common threads of truth that bind these reports together?

PPI Podcast #3: Tools of the Trade (2009)

Part 2 of PPI's presentation: Science and Beyond- An Educated Look at Ghost Hunting, is entitled Tools of the Trade. Presented by PPI Tech Manager and Co-Director Brian Miller.

Recorded March 21, 2009 at Grossmont College, El Cajon, CA

Length: 00:14:23