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  2. James Bedford - Wikipedia

    en.wikipedia.org/wiki/James_Bedford

    In his first suspended animation stages, his body was stored at Edward Hope's Cryo-Care facility in Phoenix, Arizona, for two years, then in 1969 moved to the Galiso facility in California. Bedford's body was moved from Galiso in 1973 to Trans Time near Berkeley, California , until 1977, before being stored by his son for many years.

  3. Eratosthenes - Wikipedia

    en.wikipedia.org/wiki/Eratosthenes

    The two cities used were Alexandria and Syene (modern Aswan), and the distance between the cities was measured by professional bematists. [16] A geometric calculation reveals that the circumference of the Earth is the distance between the two cities divided by the difference in shadow angles expressed as a fraction of one turn.

  4. Suspended chord - Wikipedia

    en.wikipedia.org/wiki/Suspended_chord

    Suspended second chords are inversions of suspended fourth chords, and vice versa. For example, G sus2 (G–A–D) is the first inversion of D sus4 (D–G–A) which is the second inversion of G sus2 (G–A–D). The sus2 and sus4 chords both have inversions that create quartal and quintal chords (A–D–G, G–D–A) with two stacked perfect ...

  5. Robert Ettinger - Wikipedia

    en.wikipedia.org/wiki/Robert_Ettinger

    Ettinger had two children with his first wife, Elaine, David (1951) and Shelley (1954). [1] David gave his first cryonics interview to journalists at the age of 12 and was an attorney. He served as legal counsel to the Cryonics Institute and the Immortalist Society.

  6. Ptolemy's table of chords - Wikipedia

    en.wikipedia.org/wiki/Ptolemy's_table_of_chords

    A chord of a circle is a line segment whose endpoints are on the circle. Ptolemy used a circle whose diameter is 120 parts. Ptolemy used a circle whose diameter is 120 parts. He tabulated the length of a chord whose endpoints are separated by an arc of n degrees, for n ranging from ⁠ 1 / 2 ⁠ to 180 by increments of ⁠ 1 / 2 ⁠ .

  7. Chord (geometry) - Wikipedia

    en.wikipedia.org/wiki/Chord_(geometry)

    Equal chords are subtended by equal angles from the center of the circle. A chord that passes through the center of a circle is called a diameter and is the longest chord of that specific circle. If the line extensions (secant lines) of chords AB and CD intersect at a point P, then their lengths satisfy AP·PB = CP·PD (power of a point theorem).

  8. Cryonics - Wikipedia

    en.wikipedia.org/wiki/Cryonics

    Technicians preparing a body for cryopreservation in 1985. Cryonics (from Greek: κρύος kryos, meaning "cold") is the low-temperature freezing (usually at −196 °C or −320.8 °F or 77.1 K) and storage of human remains in the hope that resurrection may be possible in the future.

  9. History of trigonometry - Wikipedia

    en.wikipedia.org/wiki/History_of_trigonometry

    The chord of an angle subtends the arc of the angle. Ancient Greek and Hellenistic mathematicians made use of the chord. Given a circle and an arc on the circle, the chord is the line that subtends the arc. A chord's perpendicular bisector passes through the center of the circle and bisects the angle.