Examples of dunbar's number in the following topics:
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- Facebook presents an interesting example of how modern technology may or may not impact Dunbar's number.
- Intimate communities seldom have more than about 150 members, a number derived from the "Dunbar's Number" concept.
- This is the suggested cognitive limit to the number of people with whom one can maintain stable social relationships.
- Like animals, the number of relationships the human brain can handle is large but not unlimited .
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- Research in a number of academic fields has demonstrated that social networks operate on many levels, from families up to the level of nations, and play a critical role in determining the way problems are solved, organizations are run, and the degree to which individuals succeed in achieving their goals.
- The so-called rule of 150 states that the size of a genuine social network is limited to about 150 members (sometimes called the Dunbar Number).
- It is theorized in evolutionary psychology that the number may be some kind of limit of average human ability to recognize members and track emotional facts about all members of a group.
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- Dunbar has proposed that language evolved as early humans began to live in large communities that required the use of complex communication to maintain social coherence.
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- Baumgardner reports criticism by professor Roxanne Dunbar-Ortiz of the division into waves and the difficulty of categorizing some feminists into specific waves, argues that the main critics of a wave are likely to be members of the prior wave who remain vital, and that waves are coming faster.
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- The atomic number is the number of protons in an element, while the mass number is the number of protons plus the number of neutrons.
- An element's mass number (A) is the sum of the number of protons and the number of neutrons.
- Isotopes of the same element will have the same atomic number but different mass numbers.
- Given an atomic number (Z) and mass number (A), you can find the number of protons, neutrons, and electrons in a neutral atom.
- Determine the relationship between the mass number of an atom, its atomic number, its atomic mass, and its number of subatomic particles
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- Exact numbers are defined numbers or result from a count, unlike measured numbers.
- Exact numbers are either defined numbers or the result of a count.
- Exact numbers have an infinite number of significant figures, but they often appear as integers.
- In contrast, measured numbers always have a limited number of significant digits.
- Mass is an example of a measured number.
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- A complex number has the form $a+bi$, where $a$ and $b$ are real numbers and $i$ is the imaginary unit.
- A complex number is a number that can be put in the form $a+bi$ where $a$ and $b$ are real numbers and $i$ is called the imaginary unit, where $i^2=-1$.
- A complex number whose real part is zero is said to be purely imaginary, whereas a complex number whose imaginary part is zero is a real number.
- It is beneficial to think of the set of complex numbers as an extension of the set of real numbers.
- Complex numbers allow for solutions to certain equations that have no real number solutions.
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