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2. Tritium radioluminescence - Wikipedia

   en.wikipedia.org/wiki/Tritium_radioluminescence

   A "permanent" illumination watch dial Tritium-illuminated handgun night sights on an FN Five-seven. These light sources are most often seen as "permanent" illumination for the hands of wristwatches intended for diving, nighttime, or combat use. They are also used in glowing novelty keychains and in self-illuminated exit signs.

3. Exit sign - Wikipedia

   en.wikipedia.org/wiki/Exit_sign

   The proposed new exit sign design features an "Accessible Means of Egress Icon", which includes an adaptation of the "running man" symbol with a new wheelchair symbol. The design is considered an enhanced version of the ISO 7010 and ISO 21542 accessible exit sign that shows the "running man" and International Symbol of Access at the end of the ...

4. Emergency light - Wikipedia

   en.wikipedia.org/wiki/Emergency_light

   An emergency light is a battery-backed lighting device that switches on automatically when a building experiences a power outage. In the United States, emergency lights are standard in new commercial and high occupancy residential buildings, such as college dormitories , apartments , and hotels .

5. Talk:Exit sign - Wikipedia

   en.wikipedia.org/wiki/Talk:Exit_sign

   The fluorescent lamps in one exit sign can contain more than 10 mg of mercury. 6 Thus, by switching to LEDs, a facility with 20 exit signs can reduce mercury use over a 10-year period from more than 750 mg to zero, and mercury emissions related to power use from 450 mg to 30 mg. 750 mg of mercury can contaminate over 1,000 fish to the point ...

6. Aftershocks Continue After Northern California Earthquake ...

   www.aol.com/strong-earthquake-strikes-near...

   Aftershocks continued Friday after a strong earthquake that prompted a tsunami warning for parts of the U.S. West Coast Thursday. "At this time, there have been 59 earthquakes of magnitude three ...

7. Colorado school bus driver dismissed after 40 kids left at ...

   www.aol.com/colorado-school-bus-driver-dismissed...

   A Colorado school bus driver allegedly abandoned 40 elementary school-aged students at the wrong stop on Monday, leaving them frightened in the cold and dark, school officials and students say.