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2. Conversion of units - Wikipedia

   en.wikipedia.org/wiki/Conversion_of_units

   The factor–label method can convert only unit quantities for which the units are in a linear relationship intersecting at 0 (ratio scale in Stevens's typology). Most conversions fit this paradigm. An example for which it cannot be used is the conversion between the Celsius scale and the Kelvin scale (or the Fahrenheit scale). Between degrees ...

3. United States customary units - Wikipedia

   en.wikipedia.org/wiki/United_States_customary_units

   Troy weight, avoirdupois weight, and apothecaries' weight are all built from the same basic unit, the grain, which is the same in all three systems. However, while each system has some overlap in the names of their units of measure (all have ounces and pounds), the relationship between the grain and these other units within each system varies.

4. System of units of measurement - Wikipedia

   en.wikipedia.org/wiki/System_of_units_of_measurement

   The avoirdupois system served as the general system of mass and weight. In addition to this, there are the troy and the apothecaries' systems. Troy weight was customarily used for precious metals, black powder, and gemstones. The troy ounce is the only unit of the system in current use; it is used for precious metals.

5. Marble (toy) - Wikipedia

   en.wikipedia.org/wiki/Marble_(toy)

   A "grandfather" is the largest marble, the size of a billiards ball or tennis ball. Various names for different marble types (regional playground talk, Leicester, UK): Marleys (marbles), prit (white marble), Kong (large marble), King Kong (larger than a bosser), steely (metal bearing-ball). Names can be combined: e.g. prit-Kong (large white ...

6. International System of Units - Wikipedia

   en.wikipedia.org/wiki/International_System_of_Units

   The conversion between different SI units for one and the same physical quantity is always through a power of ten. This is why the SI (and metric systems more generally) are called decimal systems of measurement units. [10] The grouping formed by a prefix symbol attached to a unit symbol (e.g. ' km ', ' cm ') constitutes a new inseparable unit ...

7. Elementary arithmetic - Wikipedia

   en.wikipedia.org/wiki/Elementary_arithmetic

   A subtraction problem such as is solved by borrowing a 10 from the tens place to add to the ones place in order to facilitate the subtraction. Subtracting 9 from 6 involves borrowing a 10 from the tens place, making the problem into +. This is indicated by crossing out the 8, writing a 7 above it, and writing a 1 above the 6.

8. Hardnesses of the elements (data page) - Wikipedia

   en.wikipedia.org/wiki/Hardnesses_of_the_elements...

   This page was last edited on 16 November 2024, at 12:16 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

9. Cooking weights and measures - Wikipedia

   en.wikipedia.org/wiki/Cooking_weights_and_measures

   In the standard system the conversion is that 1 gallon = 231 cubic inches and 1 inch = 2.54 cm, which makes a gallon = 3785.411784 millilitres exactly. For nutritional labeling on food packages in the US, the teaspoon is defined as exactly 5 ml, [22] giving 1 gallon = 3840 ml exactly. This chart uses the former.