ENAMEL
Enamel, the hardest calcified tissue in the human body, forms a protective covering over the teeth, adapting them for mastication. Its thickness varies across different surfaces of the teeth, with maximum thickness found on cusps. The structure of enamel makes it brittle, especially when it loses su
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Understanding Stresses and Analysis in Engineering
Stress is the internal resistance in a body when deformed, measured in Pascal (Pa) or Mega Pascal (MPa). Types of stress include shear, torsional, tensile, compressive, and bending stress. The relationship between stress and strain is crucial in material analysis, with materials categorized as ducti
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Meeting Stephen Hawking: A Differently Abled Encounter in Cambridge
Firdaus Kanga, a writer with brittle bones, meets the renowned scientist Stephen Hawking in Cambridge. Despite their physical challenges, they engage in a profound conversation that touches both their hearts. Hawking, known for his brilliance in astrophysics despite being paralyzed, shares his thoug
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Understanding True Stress and Strain in Materials
In materials engineering, the use of true stress and true strain provides a more accurate representation of material behavior, especially in regions undergoing deformation like necking. True stress considers the instantaneous cross-sectional area, accounting for changes in the material's strength du
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Insights into the Behavior and Life Cycle of Sponges
Sponges exhibit unique behavior characteristics both externally and internally. They are sedentary organisms with cylindrical bodies that can be soft or hard, flexible or brittle. Sponges reproduce via sexual and asexual methods, and go through a life cycle from larvae to adulthood. Their reproducti
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Mechanical Behavior of Structures: Stress-Strain Diagrams and Elastic Properties
Understanding the mechanical behavior of structures involves analyzing stress-strain diagrams, distinguishing between ductile and brittle materials, exploring linear and non-linear elastic properties, studying plastic deformation, yield strength, ultimate tensile strength, and toughness. Elastic beh
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Understanding Ceramic Properties: Strength, Brittle Behavior, and More
Ceramics exhibit specific properties such as high compressive strength, brittleness due to mixed ionic-covalent bonding, low fracture toughness, poor electrical and thermal conduction (except for some types), and chemical insensitivity. While strong in compression, ceramics are brittle and lack duct
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