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Particle physics

The Grand Design

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Identity: Race, Ethnicity, Gender, and Sexuality Chapter 5 What is Identity and How are Identities Constructed? Identity Identity ? ?how we make sense of ourselves? ? Rose How do we establish identities?? - we construct our identities through experiences, emotions connections, and rejections. An identity is a snapshot of who we are at a point in time Identities are fluid, constantly changing, shifting, becoming. Identities vary across scales, and affect each other across scales. Identities are also constructed by identifying against (defining the other and then defining ourselves as ?not that.?) Gender? Gender ? ?a culture?s assumptions about the differences between men and women: their ?characters,? the roles they play in society, what they represent.?

Chemistry Chapter 4,25

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Lecture 2 (Chapter 4 & 25) Atomic Structure Democritus (400 BC) ? Postulated there must be some basic unit of matter that could not be divided any further. ? Basic unit ? atomos (Greek = indivisible) Dalton Dalton?s Atomic Theory ? All matter is composed of extremely small particles called atoms ? All atoms of a given element are identical having the ame size, mass and chemical properties. Atoms of a specific element are different from those of any other element ? Different atoms combined in simple whole number ratios to form compounds ? Ina chemical reaction, atoms are separated, combined, or rearranged ? Atoms cannot be created, divided into smaller particles or destroyed. Scientist and Experiments Cathode Ray Tube Experiments ? Plum pudding model ?
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