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  2. Helix of sustainability - Wikipedia

    en.wikipedia.org/wiki/Helix_of_sustainability

    The helix of sustainability - the Carbon cycle ideal for manufacture and use The international recycling symbol - not nature identical.. The helix of sustainability is a concept coined to help the manufacturing industry move to more sustainable practices by mapping its models of raw material use and reuse onto those of nature.

  3. Triple helix model of innovation - Wikipedia

    en.wikipedia.org/wiki/Triple_helix_model_of...

    The triple helix model of innovation, as theorized by Etzkowitz and Leydesdorff, is based on the interactions between the three following elements and their associated 'initial role': [9] universities engaging in basic research, industries producing commercial goods and governments that are regulating markets. [2]

  4. Halley's method - Wikipedia

    en.wikipedia.org/wiki/Halley's_method

    In numerical analysis, Halley's method is a root-finding algorithm used for functions of one real variable with a continuous second derivative. Edmond Halley was an English mathematician and astronomer who introduced the method now called by his name.

  5. Method - Wikipedia

    en.wikipedia.org/wiki/Method

    Method (Ancient Greek: μέθοδος, methodos, from μετά/meta "in pursuit or quest of" + ὁδός/hodos "a method, system; a way or manner" of doing, saying, etc.), literally means a pursuit of knowledge, investigation, mode of prosecuting such inquiry, or system.

  6. Triangle of Life - Wikipedia

    en.wikipedia.org/wiki/Triangle_of_Life

    The Triangle of Life does not address the common instance of furniture toppling over during an earthquake. Copp's idea is focused on situations when a building completely collapses, falling straight down, rather than the far more common situations, when side-to-side shaking causes falling objects (such as trees, chimneys, furniture, and objects on shelves) to land on top of people.