Facts about 7

                   INTERESTING FACTS ABOUT 7

  • There are seven basic musical notes, namely, 'do', 're', 'me', 'fa', 'so', 'la' and 'te'. In Indian music they are 'sa', 're', 'ga', 'ma', 'pa', 'dha' and 'ni'.
  • A ladybug commonly has seven spots!
  • Most of the mammals' necks have seven bones.
  • The number of rows in the periodic table is seven.
  • The neutral pH value that lies between acidity and alkalinity is seven.
  • The code for international direct dial phone calls to Russia and Kazakhstan is seven. Seven is also the number of digits in an American or a Canadian telephone number.
  • Digital devices use a seven-segment display.
  • The OSI model has seven layers.
  • There are seven logic gates namely, NOT, NOR, XNOR, XOR, AND, NAND and OR.

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