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  2. Keycard lock - Wikipedia

    en.wikipedia.org/wiki/Keycard_lock

    There were 32 positions for possible hole locations, giving approximately 4.3 billion different keys. The key could easily be changed for each new guest by inserting a new key template in the lock that matched the new key. [2] In the early 1980s, the key card lock was electrified with LEDs that detected the holes. A keycard with a magnetic stripe

  3. Trapped-key interlocking - Wikipedia

    en.wikipedia.org/wiki/Trapped-key_interlocking

    The key will then remain trapped until the gate or door is closed. A personnel or safety key can be released from the access lock, this ensures that the gate or door can not be closed and the initial key released until this personnel or safety key is returned (assuming that no duplicate keys are available). This provides increased operator safety.

  4. Physical security - Wikipedia

    en.wikipedia.org/wiki/Physical_security

    Physical security systems for protected facilities can be intended to: [2] [3] [4] deter potential intruders (e.g. warning signs, security lighting); detect intrusions, and identify, monitor and record intruders (e.g. security alarms, access control and CCTV systems);

  5. Driver rammed through security fence at S.C. nuclear plant ...

    www.aol.com/news/police-searching-suspect-drove...

    Authorities are searching for a man who drove through the gate of a nuclear power plant in Oconee County, South Carolina, and allegedly attempted to hit security officers at the facility on ...

  6. June 1962 Alcatraz escape attempt - Wikipedia

    en.wikipedia.org/wiki/June_1962_Alcatraz_escape...

    On the same day and in the same general location, workers on another boat found a wallet wrapped in plastic complete with names, addresses, and photos of the Anglins' friends and relatives. [24] On June 21, shreds of raincoat material, believed to be remnants of the raft, were found on a beach not far from the Golden Gate Bridge. The following ...

  7. Turnstile - Wikipedia

    en.wikipedia.org/wiki/Turnstile

    A turnstile (also called a gateline, baffle gate, automated gate, turn gate in some regions) is a form of gate which allows one person to pass at a time. A turnstile can be configured to enforce one-way human traffic .

  8. Glossary of power generation - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_power_generation

    Living or recently dead material such as plant matter, used as either fuel or industrial production as biofuel It is a renewable resource obtained from several different plants, for example wood waste, sugar cane, corn, hemp and others. || Biofuel Black start: Starting a unit without external power supply from the electricity network

  9. Energy security - Wikipedia

    en.wikipedia.org/wiki/Energy_security

    The impact of the 1973 oil crisis and the emergence of the OPEC cartel was a particular milestone that prompted some countries to increase their energy security. Japan, almost totally dependent on imported oil, steadily introduced the use of natural gas, nuclear power, high-speed mass transit systems, and implemented energy conservation measures. [16]