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Triple Point

ImageTriple point is the intersection on a phase diagram where three phases coexist in equilibrium. The most important application of triple point is water, where the three-phase equilibrium point consists of ice, liquid, and vapor. Before discussing triple point further, a basic understanding of the lines from Figure 1, the phase diagram of water, are first considered. Continue reading Triple Point

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Nasa Mars Exploration – triple redundancy

Systems Classification

Concerning the redundancy of all mission equipment, we have adhered to NASA policy requiring double redundancy for all mission critical factors and triple redundancy for all life critical factors. The redundancies are most clearly explained by breaking down the entire mission into two different phases, transport and surface. We define a transport phase to be any period of time spent traveling to or from mars, for example the T.M.I. journey. The surface phase is simply the period of time spent inhabiting the mars surface.

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List of Threes in Anatomy

The structure of the human body is organized into groups of three with remarkable frequency. I have listed several examples of this tendency by region. This list does not include structures contributing to form the many “triangles” in the body. If you know of any more, please let me know.

John A. McNulty, Ph.D.

Historically, this was the first hyperlink to the Book of Threes in 1996 thanks to John McNulty . . .

Michael Eck – Author The Book of Threes

To visit John McNulty’s amazing list, click here.

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