Search results
- Dictionaryumbra/ˈʌmbrə/
noun
- 1. the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.
- 2. shadow or darkness: literary "an impenetrable umbra seemed to fill every inch of the museum"
Powered by Oxford Dictionaries
2 days ago · Vulva - Wikipedia. In mammals, the vulva (pl.: vulvas or vulvae) comprises mostly external, visible structures of the female genitalia leading away from the interior parts of the female reproductive tract, starting at the vaginal opening.
Define umbra the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse. About us
1 day ago · However, one can define the normal distribution with zero variance as a generalized function; specifically, as a Dirac delta function translated by the mean , that is () = ().
1 day ago · In physics, time is a fundamental concept to define other quantities, such as velocity. To avoid a circular definition, [16] time in physics is operationally defined as "what a clock reads", specifically a count of repeating events such as the SI second. [6] [17] [18] Although this aids in practical measurements, it does not address ...
5 days ago · Chinese Umbrellas. China is believed to be the home to umbrellas, which are still widely used in the country. The earliest umbrellas are known to have existed at least two thousand years ago, first made of silk and later popularly paper. The Chinese waxed and lacquered their paper parasols because oil repels water.
1 day ago · Astronomers define stellar brightness in terms of magnitudes: the apparent magnitude (the perceived and measured brightness of a star) and the absolute magnitude of the brightness of the star, which is the brightness of a star seen from a standard distance of 32.6 light-years, or 10 parsecs.
