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2. Inch of mercury - Wikipedia

   en.wikipedia.org/wiki/Inch_of_mercury

   Inch of mercury (inHg and ″Hg) is a non-SI unit of measurement for pressure. It is used for barometric pressure in weather reports , refrigeration and aviation in the United States . It is the pressure exerted by a column of mercury 1 inch (25.4 mm) in height at the standard acceleration of gravity .

3. Mercury vacuum - Wikipedia

   en.wikipedia.org/wiki/Mercury_vacuum

   A mercury vacuum is a vacuum cleaner specifically designed to collect mercury (the metallic element, not the planet), for instance to clean up spills of the element. It is a requirement of the U.S. EPA that a mercury vacuum cleaner be used to clean up mercury spills (if an alternative method is used, a description of the method must be submitted to the EPA Administrator in a Notification of ...

4. Vacuum - Wikipedia

   en.wikipedia.org/wiki/Vacuum

   For example, a typical vacuum cleaner produces enough suction to reduce air pressure by around 20%. [3] But higher-quality vacuums are possible. Ultra-high vacuum chambers, common in chemistry, physics, and engineering, operate below one trillionth (10 −12) of atmospheric pressure (100 nPa), and can reach around 100 particles/cm 3. [4]

5. MythBusters (2016 season) - Wikipedia

   en.wikipedia.org/wiki/MythBusters_(2016_season)

   When another drum was steam-cleaned to heat it to 203 °F (95 °C), it took 16 minutes to fail; the peak vacuum was 17.5 inches of mercury (59 kPa), and the buckling was more pronounced. Adam and Jamie then built a small-scale tank car from drums, steam cleaned it to 200 °F (93 °C), and observed a collapse at 11 inches of mercury (37 kPa ...

6. Orders of magnitude (pressure) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

   Extremely high-pressure chemical reactors (10 kbar) [citation needed] 1.5 GPa Diamond melts using a 3 kJ laser without turning into graphite first [79] 1.5 GPa 220,000 psi tensile strength of Inconel 625 according to Aircraft metal strength tables and the Mil-Hdbk-5 [80] 5.8 GPa 840,000 psi Ultimate tensile strength of the polymer Zylon: 10 10 Pa

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