The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named for Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves.
This article is about a Hindu caste. For other uses, see Nair (disambiguation). The Nair /ËnÉË.jÉr/, also known as Nayar, are a group of Indian castes, described by anthropologist Kathleen Gough as not a unitary group but a named category of castes. The Nair include several castes and many subdivisions, not all of whom historically bore the name 'Nair'.
Brahmin is a varna in Vedic Hinduism and also a caste of people who are members of it. Members are subdivided into numerous communities known as gotras.he Brahmin castes may be broadly divided into two regional groups: Pancha-Gauda Brahmins from the Northern part of India (considered to be the region north of the Vindhya mountains) and Pancha-Dravida Brahmins from the region south of the Vindhya mountains as per the shloka of Kalhana.