The Book of Threes

the human eye

The three nerves that control eye movement and pupil diameter are: Oculomotor Nerve Trochlear Nerve Abducens Nerve The human eye is equipped with a variety of optical components including the cornea, iris, pupil, aqueous and vitreous humors, a variable-focus lens, and the retina (as illustrated in Figure 1). Together, these elements work to form images […]

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Humans have three brains

By┬áJames ThorntonThe brain is our favorite bodily organ. It is where we feel sex, love, and beauty. It is where we get guilty, depressed, and angry. It is the most complex object in the known Universe. So complex that science has only made the first tentative steps towards understanding it. One thing is clear though: […]

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What is swine flu?

  Q: This super-virus we're looking at now is said to be a cross between a pig flu, a human flu and also the bird flu, which has been deadly too. Does this make it even more dangerous? Dr Smith: Flu is broken down into a number of different types: there's flu A, flu B […]

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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, […]

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O’Malley, Austin

"The three most important events of human life are equally devoid of reason; birth, marriage and death."

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Henry James

Henry James   Three things in human life are important: the first is to be kind; the second is to be kind; and the third is to be kind.

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