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2. Ninja rocks - Wikipedia

   en.wikipedia.org/wiki/Ninja_rocks

   Ninja rocks take advantage of the physical properties of tempered glass, disrupting surface compressive stress and causing the glass to shatter. Tempered glass, which is used for the side windows of most vehicles, is manufactured with an extremely high surface compressive stress and high internal tensile stress. This gives it strength and ...

3. Glass breaker - Wikipedia

   en.wikipedia.org/wiki/Glass_breaker

   To break the glass, the metal tip is held up against the window and a pin is pulled back and released to activate a spring, either automatically or manually. Spring-loaded glass breakers can be designed to be used underwater or to simply reduce the strength needed to shatter a window. When a car is submerged underwater, a hammer style glass ...

4. Electromagnetic lock - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_lock

   Quick to operate: Magnetic locks unlock instantly when the power is cut, allowing for quick release in comparison to other locks; Sturdy: Magnetic locks may also suffer less damage from multiple blows than do conventional locks. If a magnetic lock is forced open with a crowbar, it will often do little or no damage to the door or lock.

5. Electromagnetic door holder - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_door_holder

   An electromagnetic door holder (electromagnetic door holder and release or hold-open device, sometimes informally called a mag hold open or electric doorstop) is a simple electromechanical mechanism which can be used to hold a fire door or security door open until given a signal to release.

6. Reed switch - Wikipedia

   en.wikipedia.org/wiki/Reed_switch

   3 - resilient magnetic member 4 - non-magnetic member 5 - conducting member 6 - magnetic member 7 - insulating piece. The most common type of reed switch contains a pair of magnetizable, flexible, metal reeds whose end portions are separated by a small gap when the switch is open. The reeds are hermetically sealed within a tubular glass envelope.

7. Alabama A&M LB Medrick Burnett Jr. dies after head injury ...

   www.aol.com/sports/alabsms-m-lb-medrick-burnett...

   Alabama A&M freshman linebacker Medrick Burnett Jr. died one month after sustaining a head injury in an Oct. 29 game. He was hospitalized for the entire past month.

8. Hero officers and good Samaritans who went above and beyond ...

   www.aol.com/news/hero-officers-good-samaritans...

   These hero officers and good Samaritans saved children from thin ice, drowning, choking and a hostage situation, and adults from falling off a bridge and a house fire.

9. NYC woman murdered 33 years ago finally ID’d as ... - AOL

   www.aol.com/news/nyc-woman-murdered-33-years...

   A woman who was brutally murdered in Queens more than three decades ago has finally been identified - through advanced DNA testing - as a mom who went missing soon after celebrating her daughter's ...