"Torpedo" is a genus of rays, commonly known as electric rays, torpedo rays, or torpedoes. They are slow-moving bottom-dwellers capable of generating electricity as a defense and feeding mechanism.
Canal rays, also called anode rays, were observed by Eugen Goldstein, in 1886.
Grenz rays are part of the electromagnetic spectrum comprising low energy (ultrasoft) X-rays.
During his investigations of radioactivity, Ernest Rutherford coined the terms alpha rays, beta rays and gamma rays for the three types of emissions that occur during radioactive decay.
He observed tubes with energy rays extending from a negative electrode.
The propagation of light through optical fibre can take place via meridional rays or skew rays.
Malus-Dupin theorem implies that no amount of reflection and refraction could convert such a pencil of rays into a pencil of parallel rays, or a pencil of rays converging on one point, or any pencil of rays that are perpendicular to a surface.
It has 72–79 dorsal soft rays, 58–65 anal soft rays and 22–29 pectoral soft rays.
Radiation therapy uses high energy rays to destroy cancer cells or to shrink tumors. The kind of rays used are x-rays, gamma rays, electron beams or protons.
Maṅgala Buddha had brighter rays than other Buddhas.
The above two-rays approach can easily be extended to add as many rays as required.
Manta rays are the nomads of the Great Barrier Reef.
Ionizing radiation includes rays of "particles" as well as rays of "waves".
All sharks and rays are cartilaginous fishes, contrasting with bony fishes.
Methods of detection for gamma-rays: Sometimes cosmic gamma rays (photons) are not grouped with nuclei cosmic rays.
These medullary or pith rays are essential for the radial conduction of the water, minerals and other organic substances.
Rhinopristiformes [...] is an order of rays, cartilaginous fishes related to sharks, containing shovelnose rays and allied groups.
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