infrared

UFP Historical Society

First Appearance	TOS 03 (13 Oct 1966)
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Infrared was a band of radiation with wavelengths longer than that of visible light. When Eve McHuron went missing on Rigel XII, Captain Kirk initiated a search of the surface with infrared scanners, in hopes of locating her via her body heat's infrared signature.^[1]

Wikipedia

Notes and References

↑ Roddenberry, Gene (Executive Producer). "The Corbomite Maneuver". Star Trek, season 1, episode 10 (Production number 03). Directed by Joseph Sargent. Written by Jerry Sohl. Desilu Productions. 10 November 1966.

[TOS03-1] Roddenberry, Gene (Executive Producer). "The Corbomite Maneuver". Star Trek, season 1, episode 10 (Production number 03). Directed by Joseph Sargent. Written by Jerry Sohl. Desilu Productions. 10 November 1966.

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