The term "ultraviolet catastrophe" refers to a paradox that emerged in scientists' understanding of the way light is emitted by black bodies that exist in thermal equilibrium. According to the classical understanding of physics, a body that emits radiation at the same value it absorbs it from outside sources must emit radiation at ever-higher intensities as the wavelength shortens.Know More
The 19th-century understanding of physics reached an impasse around 1900 when it proved inadequate to explain the way light is emitted from objects. Under the classical model, an object in thermal equilibrium emits radiation of a given intensity at all possible wavelengths. As the frequency of the emitted light increases near the ultraviolet end of the spectrum, so do the wavelengths of light that must be emitted to match classical models. Eventually, the model predicts that black bodies should radiate infinite energy at high frequency.
A finite body cannot radiate infinite energy. This seeming paradox was eventually resolved by Max Planck. Planck reasoned that the problem of infinite radiation from a finite source would disappear if atoms were limited in the range of energy they were allowed to emit. He proposed that light could not be emitted arbitrarily, but only in discreet packets, which he called quanta. This was one of the first insights into what would come to be known as quantum physics.Learn more about Colors
Robert Frost's poem "Fire and Ice" uses figures of speech such as paradox, synecdoche, understatement and alliteration. A paradox has contradictory elements that might be true, a synecdoche is a part of something that represents its whole, an understatement under-emphasizes and an alliteration has lines starting with the same sound.Full Answer >
The color aubergine is the deep, dark purple color of eggplant fruit. The word aubergine is used to refer to eggplants in countries such as Britain and Canada. The word is French and is derived from the Arabic word "al-badinjan," which originated from the Sanskrit word "vatimgana."Full Answer >
Royal blue contains a color intensity of 0 red, 35 green and 102 blue, based on the RGB color intensity scale. The RGB scale assigns a value from 0 to 255 based on the intensity of red, green and blue light within each color.Full Answer >
Clear, or transparent, isn't considered a color. It is a different visual property altogether. The color of a physical object depends on the light that is reflected, absorbed or emitted by the object, while transparent matter lets light pass through it without reflecting or emitting light. Thus, it has no color.Full Answer >