Excel & Graphing Stuff
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World Internet Usage Statistics News and World Population Stats
NOTES: (1) Internet Usage and World Population Statistics are for December 31, 2011. (2) CLICK on each world region name for detailed regional usage information. (3) Demographic (Population) numbers are based on data from the US Census Bureau and local census agencies. (4) Internet usage information comes from data published by Nielsen Online , by the International Telecommunications Union , by GfK , local Regulators and other reliable sources. (5) For definitions, disclaimers, and navigation help, please refer to the Site Surfing Guide . (6) Information in this site may be cited, giving the due credit to www.internetworldstats.com . Copyright © 2001 - 2012, Miniwatts Marketing Group. All rights reserved worldwide.We often use the terms "mass" and "weight" interchangeably in our daily speech, but to an astronomer or a physicist they are completely different things.
Your Weight on Other Worlds | Exploratorium
The lines on scientific graphs are usually drawn either straight or curved . These "smoothed" lines do not have to touch all the data points, but they should at least get close to most of them. They are called best-fit lines .