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Professor Farnsworth holding the F-ray in the year 3000. [1ACV13]
InventorProfessor Farnsworth
First appearance"Fry and the Slurm Factory" (1ACV13)

The F-ray is a raygun that emits a neutrino beam that allows its user to see through anything, even metal, making it more powerful than an X-ray. It was created by Professor Farnsworth in the year 3000. [1ACV13]

The radiation is capable of sterilizing humans, making it necessary to wear a full-body radiation suit. Fry is not aware of this, and is sterilized when Bender shines it onto his crotch. The first known use of the F-ray was looking inside Bender to find the source of his fever, and it was later used by Fry and Bender to try to find the winning can of Slurm.

In 3013, Zoidberg used the F-ray to check what was wrong with the Professor's kidney replacement, and discovered that he had been given one of Hermes' manwiches instead of a new kidney by mistake, [7ACV24] and the Professor used it to see whether Zoidberg's new girlfriend Marianne was a robo-slave. [7ACV25]

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