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...physics of waves extends into environmental science, with ocean waves, and biology, with the special use some animals make of them. One everyday use of waves relies on the physics of what happens after a wave meets an object and is reflected. Think back to the times you heard a sound echo. If you made the sound, then you would know that the longer the gap between the...

...physical properties of minerals, including lustre, cleavage, hardness and density describe, giving mineral examples, the main differences between metallic, ionic and covalent structures and their type of bonding explain the significance of various types of defects in crystals explain the meaning of the terms lattice, unit cell, reflections and rotational symmetry, and how...

...physical character. The specialist answers questions on gender, age, ethnicity, stature, nutritional status, existence of disease processes, and the presence and character of skeletal trauma. Early pioneers of forensic anthropology included Thomas Dwight, whose book The Identification of the Human Skeleton: A Medico-Legal Study (1878) was used successfully in a court case...

...Physical forms Joint properties Joint materials Applications Natural Starch, dextrin, animal and fish glues, casein, rosin, shellac, Canada balsam and gums Solvent dispersions, emulsions, pastes, solids and powder Low strength, poor moisture resistance Paper, cork, textiles, wood, some plastics Industrial packaging and other rapid set assemblies Elastomers Natural and...