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  2. Pilling–Bedworth ratio - Wikipedia

    en.wikipedia.org/wiki/Pilling–Bedworth_ratio

    N.B. Pilling and R.E. Bedworth [2] suggested in 1923 that metals can be classed into two categories: those that form protective oxides, and those that cannot. They ascribed the protectiveness of the oxide to the volume the oxide takes in comparison to the volume of the metal used to produce this oxide in a corrosion process in dry air.

  3. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property.

  4. Conversion (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Conversion_(chemistry)

    Conversion and its related terms yield and selectivity are important terms in chemical reaction engineering.They are described as ratios of how much of a reactant has reacted (X — conversion, normally between zero and one), how much of a desired product was formed (Y — yield, normally also between zero and one) and how much desired product was formed in ratio to the undesired product(s) (S ...

  5. Is Berkshire Hathaway's A Share Class a Buy? - AOL

    www.aol.com/berkshire-hathaways-share-class-buy...

    That's why Berkshire Hathaway ended up creating B shares. Each A share can be converted into 1,500 class B shares. Thus, they trade at a much lower price point. Berkshire's B shares currently ...

  6. What's the Difference Between Berkshire Hathaway Class ... - AOL

    www.aol.com/news/2014-01-10-whats-the-difference...

    Berkshire Hathaway is known for a lot of things. Its Chairman and CEO, Warren Buffett, its successful track record, and of course, its expensive Class A share price.

  7. 3 Reasons to Buy Berkshire Hathaway Stock Like There's No ...

    www.aol.com/finance/3-reasons-buy-berkshire...

    Relatively few investors will buy Berkshire Hathaway (NYSE: BRK.A) (NYSE: BRK.B) class A shares as 2024 draws to a close. There's a good reason why: The cost of one class A share of Berkshire ...

  8. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    If nothing is specified, the equation is rendered in the same display style as "block", but without using a new paragraph. If the equation does appear on a line by itself, it is not automatically indented. The sum = converges to 2. The next line-width is disturbed by large operators. Or: The sum

  9. Berkshire Hathaway stock appears to drop 99.9% after NYSE ...

    www.aol.com/finance/berkshire-hathaway-stock...

    Berkshire Hathaway B-shares, which trade at 1/1,500th the price of the A-shares, were down as much as 1.1% on Monday and appeared largely unaffected by the error, though volatility was pronounced ...