Template:Sister project Null may refer to:

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Science, technology, and mathematicsEdit

AstronomyEdit

  • Nuller, an optical tool using interferometry to block certain sources of light

ComputingEdit

  • Null (SQL) (or NULL), a special marker and keyword in SQL indicating that a data value does not exist, is not known, or is missing.
  • Null character, the zero-valued ASCII character, also designated by Template:Mono, often used as a terminator, separator or filler. This symbol has no visual representation.
  • Null device, a virtual file that discards data written to it, on Unix systems /dev/null
  • Null pointer or reference (sometimes written NULL, nil, or None), an object pointer (or reference) not currently set to point (or refer) to a valid object

MathematicsEdit

PhysicsEdit

Arts and mediaEdit

People with the surnameEdit

See alsoEdit

Template:Srt

Template:Disambiguation