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A phosphene is the phenomenon of seeing light without light entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphenes that are induced by movement or sound may be associated with optic neuritis. [1] [2]
Dark stars and black holes both have a surface escape velocity equal or greater than lightspeed, and a critical radius of r ≤ 2M. However, the dark star is capable of emitting indirect radiation – outward-aimed light and matter can leave the r = 2M surface briefly before being recaptured, and while outside the critical surface, can interact ...
A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.
A dark star is a hypothetical type of star that may have existed early in the universe before conventional stars were able to form and thrive. Properties
Seeing how the nose is the most prominent feature on a person’s face since it sits right between one’s eyes, Arbeau reveals it can be a common way for spirits of the deceased, angels, guides ...
The Dark Star, a 1917 novel by Robert W. Chambers; Dark Star, a 1929 novel by Lorna Moon; The Dark Star, a 1939 novel by Margaret Mackie Morrison, writing as March Cost; Dark Star, a 1969 novel by Norma K. Hemming, writing as Nerina Hilliard
“The only two places that blood can go when you have a nosebleed are from the front of the nose or down the back of the nose and into the throat,” says Dr. Edwards.
A star where gravitational collapse is prevented by radiation pressure resulting from electroweak burning. In this type of star, quarks are converted to leptons via the electroweak interaction. The core of the star would be hand-sized, containing perhaps two earth masses, and might follow from the collapse of a quark star. none: Frozen star