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2. Solid-state relay - Wikipedia

   en.wikipedia.org/wiki/Solid-state_relay

   A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. They serve the same function as an electromechanical relay , but solid-state electronics contain no moving parts and have a longer operational lifetime.

3. Trapped-key interlocking - Wikipedia

   en.wikipedia.org/wiki/Trapped-key_interlocking

   This is a trapped-key interlock on the door of an electrical switchgear cabinet. It is attached with one-way security screws to discourage casual removal, which would defeat the interlock scheme. Trapped-key interlocking utilizes locks and keys for sequential control of equipment and machinery to ensure safe operation. Trapped-key interlocks ...

4. Safe-cracking - Wikipedia

   en.wikipedia.org/wiki/Safe-cracking

   While observing the lock, the attacker manipulates the dial to align the lock gates so that the fence falls and the bolt is disengaged. Bypass attacks involve physical manipulation of both the lock and its bolt mechanism. Punching, peeling and using a torch are other methods of compromising a safe.

5. Electronic lock - Wikipedia

   en.wikipedia.org/wiki/Electronic_lock

   Electric locks use magnets, solenoids, or motors to actuate the lock by either supplying or removing power. Operating the lock can be as simple as using a switch, for example an apartment intercom door release, or as complex as a biometric based access control system. There are two basic types of locks: "preventing mechanism" or operation ...

6. Power door locks - Wikipedia

   en.wikipedia.org/wiki/Power_door_locks

   Animation of how a power lock system works (simple relay operation) Power door locks (also known as electric door locks or central locking) allow the driver or front passenger to simultaneously lock or unlock all the doors of an automobile or truck, by pressing a button or flipping a switch.

7. Narcissists maintain control through ‘bright siding.’ Here’s ...

   www.aol.com/narcissists-maintain-control-bright...

   "Try to see the good in people." "Come on − he can't be that bad." "You should be grateful to even be in a relationship.". If you've heard these phrases before, chances are you've been "bright ...