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  2. Fischer projection - Wikipedia

    en.wikipedia.org/wiki/Fischer_projection

    In chemistry, the Fischer projection, devised by Emil Fischer in 1891, is a two-dimensional representation of a three-dimensional organic molecule by projection. Fischer projections were originally proposed for the depiction of carbohydrates and used by chemists, particularly in organic chemistry and biochemistry .

  3. Structural formula - Wikipedia

    en.wikipedia.org/wiki/Structural_formula

    The sawhorse projection is very similar to a skeletal formula, and it can even use wedges instead of lines to indicate the stereochemistry of the molecule. The sawhorse projection is set apart from the skeletal formulas because the sawhorse projection is not a very good indicator of molecule geometry and molecular arrangement.

  4. Skeletal formula - Wikipedia

    en.wikipedia.org/wiki/Skeletal_formula

    The skeletal formula of the antidepressant drug escitalopram, featuring skeletal representations of heteroatoms, a triple bond, phenyl groups and stereochemistry. The skeletal formula, line-angle formula, bond-line formula or shorthand formula of an organic compound is a type of molecular structural formula that serves as a shorthand representation of a molecule's bonding and some details of ...

  5. Newman projection - Wikipedia

    en.wikipedia.org/wiki/Newman_projection

    This projection most commonly sights down a carbon-carbon bond, making it a very useful way to visualize the stereochemistry of alkanes. A Newman projection visualizes the conformation of a chemical bond from front to back, with the front atom represented by the intersection of three lines (a dot) and the back atom as a circle.

  6. Threose - Wikipedia

    en.wikipedia.org/wiki/Threose

    As is depicted in a Fischer projection of d-threose, the adjacent substituents will have a syn orientation in the isomer referred to as "threo", and are anti in the isomer referred to as "erythro". [3] [4] Fischer projections depicting the two enantiomers of threose

  7. Flying wedge - Wikipedia

    en.wikipedia.org/wiki/Flying_wedge

    A flying wedge (also called flying V or wedge formation, or simply wedge) is a configuration created from a body moving forward in a triangular formation. This V-shaped arrangement began as a successful military strategy in ancient times when infantry units would move forward in wedge formations to smash through an enemy's lines.

  8. How do athletes avoid wedgies? And more Olympic questions you ...

    www.aol.com/news/athletes-avoid-wedgies-more...

    If you’re anything like us, watching the Summer Olympics involves a lot of staring at the screen with your jaw dropped in awe. But it’s not just the daring backflips and the lightning-fast ...

  9. Natta projection - Wikipedia

    en.wikipedia.org/wiki/Natta_projection

    In a hydrocarbon molecule with all carbon atoms making up the backbone in a tetrahedral molecular geometry, the zigzag backbone is in the paper plane (chemical bonds depicted as solid line segments) with the substituents either sticking out of the paper toward the viewer (chemical bonds depicted as solid wedges) or away from the viewer ...