Browsing All Posts published on »August 26th, 2010«

Online tutorial: Scientific notation (UCel)

August 26, 2010 by

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Online tutorial on using scientific notation to describe and compute with really large and really small numbers. Great review! 17 short Flash tutorials delivered in a charming British female voice. Good graphics and examples moving step-by-step through the use of scientific notation.

Fact sheet: Using scientfic notation (Wikipedia)

August 26, 2010 by

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Well organized discussion of how to add, subtract, multiply, and divide using scientific notation, and how to convert between that and regular numbers. Note: calculators often use a different notation. The Wikipedia article has a nice little discussion showing how that works.

Fact sheet: Number prefixes used in the SI system (Wikipedia)

August 26, 2010 by

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Well organized tables showing what the number prefixes—micro, nano, mega, giga, etc—mean and how to replace them with numbers. Note: gigabyte, megabyte, kilobyte, use a slightly different meaning for the prefixes. This can be a little confusing. The Wikipedia article has a nice little discussion of the difference between that and the SI usage.

Fact sheet: Conversion factors for changing units (Wikipedia)

August 26, 2010 by

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Well organized tables showing conversion factors for a lot of different units. For example, if you need to know * how many feet in one kilometer * how many Newtons are in one pound * how many cubic feet are in a cubic meter Look in the table for Length for the first, the table for Force for the second, and the table for Volume, for the third, and so on.

Online conversions: Using Google to check your unit conversions

August 26, 2010 by

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You can use Google to convert between many different units of measurement of height, weight, and volume among many others. Just enter your desired conversion into the search box and we’ll do the rest.