In classical physics, the diffraction phenomenon is described as the interference of waves according to the HuygensâFresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength.iffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.
Voya Financial. Voya Financial is an American financial, retirement, investment and insurance company based in New York, New York. Voya began as ING U.S., the United States operating subsidiary of ING Group, which was spun off in 2013 and established independent financial backing through an initial public offering. In April 2014, the company rebranded itself as Voya Financial. Voya's predecessors had first entered the U.S. market in the 1970s.
Vodun (a.k.a. Vodoun, Voudou, Voodoo, Sevi Lwa) is commonly called Voodoo by the public, especially Hollywood. The name is traceable to an African word for spirit. Vodun's c â¦ an be directly traced to the West African Yoruba people who lived in 18th and 19th century Dahomey.oodoo/Voudo/Voodu is very real and is practiced by thousands of people the world over. It originated in Africa, and with the diaspora of black slaves throughout the Americas â¦ , it's strongest concentrations can be found in Louisiana (US), Cuba, Haiti, and Brazil. It is a faith as real as any other.