Because all of the Rescued Film Project images are scanned to digital, the necessity of a darkroom is null.
Blacks are saying that the old contract with America is null and void.
Journals aren't interested in null results or "yup, we replicated that other study"; they want new studies with new findings.
A special value used in several languages to represent the thing referred to by an uninitialised pointer. database
A special value that may be stored in some database columns to represent an unknown, missing, not applicable, or undefined value. Nulls are treated completely differently from ordinary values when evaluating SQL expressions and there are several SQL constructs for dealing with nulls.