{
    "title": "Earth Motor",
    "inventor_name": "Lorrie Matchett",
    "publication_year": null,
    "device_name": "Earth Motor",
    "goal": "Utilize the Earth's magnetic field as an outer stator field to demonstrate a motor for educational and scientific purposes.",
    "problem_addressed": "Demonstrate that the Earth's geomagnetic field can be used to produce rotational motion, providing a teaching aid for understanding geomagnetism.",
    "concept_summary": "A rotor driven by the Earth's magnetic field, using wire windings and switching devices, rotates at a steady speed (~=58 rpm) with low power output. The device is presented as a demonstration rather than a free-energy source.",
    "detailed_description": null,
    "category": "Electromagnetism & Magnetism",
    "principles": [
        "Geomagnetic field utilization",
        "Magnetic induction",
        "Rotational torque from external magnetic field"
    ],
    "scientific_domains": [
        "Physics",
        "Electrical Engineering"
    ],
    "mechanisms_of_action": [
        "Interaction of current-carrying coils with Earth's magnetic field",
        "Magnetic torque producing rotor rotation"
    ],
    "materials": [
        "Copper wire",
        "Switching devices (e.g., relays)",
        "Metal frame"
    ],
    "energy_sources": [
        "Earth's magnetic field"
    ],
    "inputs": [
        "Earth's magnetic field",
        "Electrical power for coil switching"
    ],
    "outputs": [
        "Mechanical rotation (~=58 rpm)",
        "Low-power electrical generation (implied)"
    ],
    "claimed_performance": "Steady 58 rpm rotation at low power; device is quiet.",
    "experimental_evidence": "Prototype built in a Toronto workshop; observed rotating rotor at 58 rpm; demonstrated to an engineer who confirmed its genuineness.",
    "replication_status": "Demonstrated to a qualified engineer; no independent replication reported.",
    "keywords": [
        "Earth motor",
        "geomagnetism",
        "magnetic field motor",
        "educational demonstration",
        "low-power motor"
    ],
    "related_technologies": [
        "Geophysical energy harvesting",
        "Magnetic torque motors",
        "Teaching aids for electromagnetism"
    ],
    "controversy_level": "medium",
    "confidence_score": 0.9,
    "practicability_score": 0.4,
    "fringe_score": 0.6,
    "evidence_strength": 0.5,
    "risk_score": 0.1,
    "trl_estimate": 4,
    "source_urls": [
        "https://www.youtube.com/watch?v=Kdup42Epq0o",
        "https://www.youtube.com/watch?v=hJyZK6t9qcA",
        "https://www.youtube.com/watch?gl=GB&hl=en-GB&v=K0RUzDtdZR0&NR=1",
        "http://www.slideshare.net/engpjk/ultrasimple-freeenergy-from-lorrie-matchett"
    ],
    "organizations": [],
    "applications": [
        "Educational demonstration of geomagnetism",
        "Teaching aid for physics and engineering"
    ],
    "limitations": [
        "Very low power output",
        "Performance dependent on Earth's field orientation",
        "No evidence of scalability"
    ],
    "open_questions": [
        "Can the motor be scaled to produce useful power?",
        "What is the efficiency of converting geomagnetic energy to mechanical work?"
    ],
    "red_flags": [
        "Claims of \"free energy\" in surrounding discussion",
        "Lack of independent verification or peer-reviewed data"
    ],
    "evidence_quotes": [
        "The rotor, developing a steady 58 rpm but at low power was easy to stop with my fingers.",
        "The prototype is utterly quiet.",
        "Yes, it's genuine."
    ]
}