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  2. Bruce protocol - Wikipedia

    en.wikipedia.org/wiki/Bruce_protocol

    The test score is the time taken on the test, in minutes. This can also be converted to an estimated maximal oxygen uptake score using the calculator below and the following formulas, where the value "T" is the total time completed (expressed in minutes and fractions of a minute e.g. 9 minutes 15 seconds = 9.25 minutes). As with many exercise ...

  3. Aluminum electrolytic capacitor - Wikipedia

    en.wikipedia.org/wiki/Aluminum_electrolytic...

    The FIT values given in data sheets are calculated from the long-time experience of the manufacturer, based on the lifetime test results. Typical reference failure rate values for aluminum electrolytic capacitors with non-solid electrolytes are for low voltages types (6.3–160 V) FIT rates in the range of 1 to 20 FIT [ 51 ] and for high ...

  4. Sheldon coin grading scale - Wikipedia

    en.wikipedia.org/wiki/Sheldon_coin_grading_scale

    Coin dealers will normally grade these coins at or below the ones shown for that respective type, the grades here depend on how bad the issue or issues are. [27] Grading services typically label these coins as "authentic" with x grade "details" (ex: "EF details"). Coins that are uncirculated as mentioned above can not go below an MS-60 grade.

  5. Balance puzzle - Wikipedia

    en.wikipedia.org/wiki/Balance_puzzle

    1.b) The side that was heavier the first time is lighter the second time. This means that one of the three coins that went from the lighter side to the heavier side is the light coin. For the third attempt, weigh two of these coins against each other: if one is lighter, it is the unique coin; if they balance, the third coin is the light one.

  6. Change-making problem - Wikipedia

    en.wikipedia.org/wiki/Change-making_problem

    Coin values can be modeled by a set of n distinct positive integer values (whole numbers), arranged in increasing order as w 1 through w n.The problem is: given an amount W, also a positive integer, to find a set of non-negative (positive or zero) integers {x 1, x 2, ..., x n}, with each x j representing how often the coin with value w j is used, which minimize the total number of coins f(W)

  7. Certified Acceptance Corporation - Wikipedia

    en.wikipedia.org/wiki/Certified_Acceptance...

    Grading standards have changed over the years. Because collectors and dealers have gotten more selective, an informal "sub-grade" system has evolved. "A" coins are the best of the grade, "B" coins are "solid", and "C" coins are at the low end of a particular grade based on the Sheldon scale, e.g., MS-65. CAC stickers are intended to standardize ...

  8. Coin grading - Wikipedia

    en.wikipedia.org/wiki/Coin_grading

    Coin grading [1] is the process of determining the grade or condition of a coin, one of the key factors in determining its collectible value. A coin's grade is generally determined by six criteria: strike, preservation, luster, color, attractiveness, and occasionally the country/state in which it was minted. Several grading systems have been ...

  9. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    Used in keychain LED flashlights, and in some digital cameras to keep the time and date function running even when the main battery is taken out of the camera. [146] [147] CR1225: 5020LC: 50: 0.2: 12.5 × 2.5 Maximum discharge current: 1 mA. Maximum pulse discharge current: 5 mA. CR1612: 16 × 1.2 Rare, used in Casio Film series watches. CR1616 ...