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  2. Factor of safety - Wikipedia

    en.wikipedia.org/wiki/Factor_of_safety

    In engineering, a factor of safety (FoS) or safety factor (SF) expresses how much stronger a system is than it needs to be for an intended load.Safety factors are often calculated using detailed analysis because comprehensive testing is impractical on many projects, such as bridges and buildings, but the structure's ability to carry a load must be determined to a reasonable accuracy.

  3. Head injury criterion - Wikipedia

    en.wikipedia.org/wiki/Head_injury_criterion

    The head injury criterion (HIC) is a measure of the likelihood of head injury arising from an impact. The HIC can be used to assess safety related to vehicles, personal protective gear, and sport equipment.

  4. Stress concentration - Wikipedia

    en.wikipedia.org/wiki/Stress_concentration

    Internal force lines are denser near the hole. In solid mechanics, a stress concentration (also called a stress raiser or a stress riser or notch sensitivity) is a location in an object where the stress is significantly greater than the surrounding region.

  5. Use of force continuum - Wikipedia

    en.wikipedia.org/wiki/Use_of_force_continuum

    Therefore, the "reasonableness" factor of a use of force incident must be judged from the perspective of a reasonable officer on the scene, and judged with the understanding that police officers are often forced to make split-second decisions about the amount of force necessary in a particular situation.

  6. Multiple Arctic outbreaks to affect more than 250 million in ...

    www.aol.com/weather/multiple-arctic-outbreaks...

    Another key factor as to how far to the south and east the extreme cold will be able to ... the strain on the electric grid could force rolling blackouts. ... extended periods of dangerous travel ...

  7. High-g training - Wikipedia

    en.wikipedia.org/wiki/High-G_training

    The 20 g centrifuge at the NASA Ames Research Center. High-g training is done by aviators and astronauts who are subject to high levels of acceleration ('g'). It is designed to prevent a g-induced loss of consciousness (g-LOC), a situation when the action of g-forces moves the blood away from the brain to the extent that consciousness is lost.

  8. China's air force is again being called out for 'dangerous ...

    www.aol.com/chinas-air-force-again-being...

    The Philippines said two Chinese jets flew dangerously close to one of its planes over the South China Sea. It said the Chinese aircraft also released multiple flares in the plane's path.

  9. g-LOC - Wikipedia

    en.wikipedia.org/wiki/G-LOC

    g-force induced loss of consciousness (abbreviated as G-LOC, pronounced "JEE-lock") is a term generally used in aerospace physiology to describe a loss of consciousness occurring from excessive and sustained g-forces draining blood away from the brain causing cerebral hypoxia.