Helix
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A helix (pl: helixes or helices) is a type of space curve, i.e. a smooth curve in three-dimensional space. It is characterised by the fact that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helixes are coil springs and the handrails of spiral staircases. A "filled-in" helix for example, a spiral ramp is called a helicoid. Helices are important in biology, as the DNA molecule is formed as two intertwined helices,…mehr

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A helix (pl: helixes or helices) is a type of space curve, i.e. a smooth curve in three-dimensional space. It is characterised by the fact that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helixes are coil springs and the handrails of spiral staircases. A "filled-in" helix for example, a spiral ramp is called a helicoid. Helices are important in biology, as the DNA molecule is formed as two intertwined helices, and many proteins have helical substructures, known as alpha helices. The word helix comes from the Greek word .