Sambar (dish) sambar are popular for breakfast or an evening snack in the south Indian states. Roadside restaurants often offer free refills of sambar for idli and vadas. Sambar is also served as a side dish for dosa. Sambar (dish) Sambar, also spelled sambhar or sambaar, and pronounced saambaar, is a lentil-based vegetable stew or chowder, originating from the Indian subcontinent, cooked with a tamarind broth. It is popular in South Indian and Sri Lankan cuisines. According to food historian K. T. Achaya, the earliest extant mention of sambar in literature can be dated to the 17th century. Sambar is made either
Pulse-position modulation Pulse-position modulation Pulse-position modulation (PPM) is a form of signal modulation in which "M" message bits are encoded by transmitting a single pulse in one of formula_1 possible required time shifts. This is repeated every "T" seconds, such that the transmitted bit rate is formula_2 bits per second. It is primarily useful for optical communications systems, which tend to have little or no multipath interference. An ancient use of pulse-position modulation was the Greek hydraulic semaphore system invented by Aeneas Stymphalus around 350 B.C. that used the water clock principle to time signals. In this system, the draining of water