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Likewise, the light traveling in the opposite direction of the rotation will travel less than one circumference before hitting the light source on the front side. So the time for this direction of light to reach the moving source again is: = +. The time difference is
Each of the creatures is most closely associated with a cardinal direction and a color, but also additionally represents other aspects, including a season of the year, an emotion, virtue, and one of the Chinese "five elements" (wood, fire, earth, metal, and water). Each has been given its own individual traits, origin story and a reason for being.
The center point of θ is moved to the center of r, and is known as the "poloidal" direction. These terms were first used in a discussion of the Earth's magnetic field, where "poloidal" was used to denote "the direction toward the poles". [5] In modern use, toroidal and poloidal are more commonly used to discuss magnetic confinement fusion devices.
One half-circle (usually light) shows contented people moving upwards to higher states, possibly to the higher realms. The other half-circle (usually dark) shows people in a miserable state being led downwards to lower states, possibly to the lower realms. These images represent karma, the law of cause and effect. The light half-circle ...
The distinction between the alternative terms used in English for various types of halo is rather unclear. The oldest term in English is "glory", the only one available in the Middle Ages, but now largely obsolete. It came from the French gloire which has much the same range of meanings as "glory". "Gloriole" does not appear in this sense until ...
Particles in the air scatter short-wavelength light (blue and green) through Rayleigh scattering much more strongly than longer-wavelength yellow and red light. Loosely, the term crepuscular rays is sometimes extended to the general phenomenon of rays of sunlight that appear to converge at a point in the sky, irrespective of time of day. [3] [4]
In a double ring resonator, two ring waveguides are used instead of one. They may be arranged in series (as shown on the right) or in parallel. When using two ring waveguides in series, the output of the double ring resonator will be in the same direction as the input (albeit with a lateral shift).
Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.