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2. Blast damper - Wikipedia

   en.wikipedia.org/wiki/Blast_damper

   Blast dampers usually employ some type of blade held open with tension from a spring. The damper blades close automatically when pressure overcomes the resistance offered by the spring. Various models differ in the amount of blast protection (e.g. 1 bar/14.5 psi or lower amounts of protection) and whether they stay closed after the blast or ...

3. Backdraft - Wikipedia

   en.wikipedia.org/wiki/Backdraft

   A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and ...

4. Lever arm shock absorber - Wikipedia

   en.wikipedia.org/wiki/Lever_arm_shock_absorber

   Rotary vane shock absorber, 1935. Lever arm shock absorbers were the first form of hydraulic shock absorber or damper used for car suspension.They appeared in the 1930s and were most commonly used in the 1950s and 1960s, but were replaced by telescopic shock absorbers in the 1970s. [1]

5. Shock absorber - Wikipedia

   en.wikipedia.org/wiki/Shock_absorber

   A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is then dissipated. Most shock absorbers are a form of dashpot (a damper which resists motion via viscous friction).

6. Fox officiating analyst Mike Pereira dismisses 'myth' of pro ...

   www.aol.com/fox-officiating-analyst-mike-pereira...

   Mike Pereira walked out to his spot during Fox's media day and was greeted by a larger contingent of reporters than usual for an officiating expert when there were Super Bowl-winning coaches and ...

7. President Donald Trump reinstates order to build 'National ...

   www.aol.com/news/president-donald-trump...

   President Donald Trump called for a national park of 'historically significant Americans in 2020.' Biden revoked it and now Trump is bringing it back.