Dope

Technology / Aviation / Dope: Preservative and pigmented coloring for fabric aircraft covering and paints, generally nitrate lacquer but generically used to denote all early shellac and coal-tar mixtures on up to present-day acrylics.

Erbium (Er)

Science / Periodic Table of Elements / Erbium (Er): Atomic number: 68, Atomic mass: 167.26 g.mol -1, Electronegativity: 1.2, Density: 9.2 g.cm-3 at 20°C, Melting point: 1522 °C, Boiling point: 2510 °C, Vanderwaals radius: unknown, Ionic radius: unkn MORE

Thulium (Tm)

Science / Periodic Table of Elements / Thulium (Tm): Atomic number: 69, Atomic mass: 168.93 g.mol -1, Electronegativity: 1.2, Density: 9.3 g.cm-3 at 20°C, Melting point: 1545 °C, Boiling point: 1947 °C, Vanderwaals radius: unknown, Ionic radius: unkn MORE

Ytterbium (Yb)

Science / Periodic Table of Elements / Ytterbium (Yb): Atomic number: 70, Atomic mass: 173.04 g.mol -1, Electronegativity: 1.1, Density: 7 g.cm-3 at 20°C, Melting point: 824 °C, Boiling point: 1466 °C, Vanderwaals radius: unknown, Ionic radius: unknown MORE

Pericope

Entertainment / Literature / Pericope: (1) In biblical studies, a story, brief passage, or selection from gospel narrative or passage found embedded inside another story, narrative, or passage. (2) Passages of gospel text inserted at the h MORE

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