Instruments

Musical instruments are devices designed to produce music, frequently by plucking or striking a string or bell or drum surface, or by forcing air to resonate (see wind instruments).

Scientific instruments are devices intended to assist in the conduct of science. An example would be the test tubes and other glassware one might find in a chemistry or biology laboratory.

Medical instruments are devices for the diagnosis and treatment of diseases.

Legal and financial instruments are somebody please write something intelligent here.

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