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2. A Sound of Thunder - Wikipedia

   en.wikipedia.org/wiki/A_Sound_of_Thunder

   Influence. "A Sound of Thunder" is often credited as the origin of the term "butterfly effect", a concept of chaos theory in which the flapping of a butterfly's wings in one part of the world could create a hurricane on the opposite side of the globe. The term was actually introduced by meteorologist Edward Norton Lorenz in the 1960s.

3. All Summer in a Day - Wikipedia

   en.wikipedia.org/wiki/All_Summer_in_a_Day

   Short story. Publication date. March 1954. " All Summer in a Day " is a science fiction short story by American writer Ray Bradbury, first published in March 1954 for The Magazine of Fantasy & Science Fiction. [1]

4. Radiation - Wikipedia

   en.wikipedia.org/wiki/Radiation

   In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. [1] [2] This includes: electromagnetic radiation consists of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) particle radiation consists of ...

5. Electric ray - Wikipedia

   en.wikipedia.org/wiki/Electric_ray

   Hypnidae. Torpedinidae. The electric rays are a group of rays, flattened cartilaginous fish with enlarged pectoral fins, composing the order Torpediniformes / tɔːrˈpɛdɪnɪfɔːrmiːz /. They are known for being capable of producing an electric discharge, ranging from 8 to 220 volts, depending on species, used to stun prey and for defense. [2]

6. X-ray scattering techniques - Wikipedia

   en.wikipedia.org/wiki/X-ray_scattering_techniques

   X-ray reflectivity is an analytical technique for determining thickness, roughness, and density of single layer and multilayer thin films. Wide-angle X-ray scattering (WAXS), a technique concentrating on scattering angles 2θ larger than 5°. Spectrum of various inelastic scattering processes that can be probed with inelastic X-ray scattering ...

7. Ray (optics) - Wikipedia

   en.wikipedia.org/wiki/Ray_(optics)

   Rays and wavefronts. In optics, a ray is an idealized geometrical model of light or other electromagnetic radiation, obtained by choosing a curve that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow. [1] [2] Rays are used to model the propagation of light through an optical system, by ...