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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. 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 ⁠ .

  4. Eratosthenes - Wikipedia

    en.wikipedia.org/wiki/Eratosthenes

    The son of Aglaos, Eratosthenes was born in 276 BC in Cyrene.Now part of modern-day Libya, Cyrene had been founded by Greeks centuries earlier and became the capital of Pentapolis (North Africa), a country of five cities: Cyrene, Arsinoe, Berenice, Ptolemias, and Apollonia.

  5. 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.

  6. 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).

  7. History of trigonometry - Wikipedia

    en.wikipedia.org/wiki/History_of_trigonometry

    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. One half of the bisected chord is the sine of one half the bisected angle, that is, [13]

  8. Archimedes - Wikipedia

    en.wikipedia.org/wiki/Archimedes

    It is the locus of points corresponding to the locations over time of a point moving away from a fixed point with a constant speed along a line which rotates with constant angular velocity. Equivalently, in modern polar coordinates ( r , θ ), it can be described by the equation r = a + b θ {\displaystyle \,r=a+b\theta } with real numbers a ...

  9. Robert Ettinger - Wikipedia

    en.wikipedia.org/wiki/Robert_Ettinger

    [citation needed] While Ettinger was the first, most articulate, and most scientifically credible person to argue the idea of cryonics, [citation needed] he was not the only one. In 1962, Evan Cooper had authored a manuscript entitled "Immortality: Physically, Scientifically, Now" [ 13 ] under the pseudonym Nathan Duhring. [ 14 ]