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  2. Bisection - Wikipedia

    en.wikipedia.org/wiki/Bisection

    Construction by straight edge and compass. In classical geometry, the bisection is a simple compass and straightedge construction, whose possibility depends on the ability to draw arcs of equal radii and different centers: The segment is bisected by drawing intersecting circles of equal radius , whose centers are the endpoints of the segment.

  3. The central science - Wikipedia

    en.wikipedia.org/wiki/The_central_science

    Chemistry is often called the central science because of its role in connecting the physical sciences, [1] which include chemistry, with the life sciences, pharmaceutical sciences and applied sciences such as medicine and engineering. The nature of this relationship is one of the main topics in the philosophy of chemistry and in scientometrics.

  4. Biochemistry - Wikipedia

    en.wikipedia.org/wiki/Biochemistry

    Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. [1] A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology, and metabolism. Over the last decades of the 20th century, biochemistry has become successful at ...

  5. Biogeochemistry - Wikipedia

    en.wikipedia.org/wiki/Biogeochemistry

    In particular, biogeochemistry is the study of biogeochemical cycles, the cycles of chemical elements such as carbon and nitrogen, and their interactions with and incorporation into living things transported through earth scale biological systems in space and time. The field focuses on chemical cycles which are either driven by or influence ...

  6. Biophysics - Wikipedia

    en.wikipedia.org/wiki/Biophysics

    Biophysics is an interdisciplinary science that applies approaches and methods traditionally used in physics to study biological phenomena. [ 1 ][ 2 ][ 3 ] Biophysics covers all scales of biological organization, from molecular to organismic and populations. Biophysical research shares significant overlap with biochemistry, molecular biology ...

  7. Dental radiography - Wikipedia

    en.wikipedia.org/wiki/Dental_radiography

    The bisecting angle technique is an older method for periapical radiography. It can be a useful alternative technique when the ideal receptor placement using the paralleling technique cannot be achieved, for reasons such as anatomical obstacles e.g. tori, shallow palate, shallow floor of mouth, or narrow arch width.

  8. Crystallography - Wikipedia

    en.wikipedia.org/wiki/Crystallography

    A crystalline solid: atomic resolution image of strontium titanate. Brighter spots are columns of strontium atoms and darker ones are titanium - oxygen columns. Crystallography is the branch of science devoted to the study of molecular and crystalline structure and properties. [ 1 ] The word crystallography is derived from the Ancient Greek ...

  9. Midpoint theorem (triangle) - Wikipedia

    en.wikipedia.org/wiki/Midpoint_theorem_(triangle)

    Midpoint theorem (triangle) The midpoint theorem, midsegment theorem, or midline theorem states that if the midpoints of two sides of a triangle are connected, then the resulting line segment will be parallel to the third side and have half of its length. The midpoint theorem generalizes to the intercept theorem, where rather than using ...

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