A real school chalkboard prop


The Man from U.N.C.L.E. which was aired  on NBC from  1964-1968 in the United States was about secret agents, played by Robert Vaughn and David McCallum, who work for a secret international counter espionage and law and enforcement agency named U.N.C.L.E.

This James Bond like TV program spawned by Sam Rolfe left the  meaning of U.N.C.L.E. unclear though many believe it meant “Uncle Sam” or the United Nations. Due to legal concerns from Metro-Goldwyn-Mayer legal counsel, Rolfe promulgated that U.N.C.L.E. was an acronym for the United Network Command for Law and Enforcement.

We watched an episode of it on MeTV recently and were quite intrigued by the David McCallum elementary classroom scene where he appeared to be checking a doll for a bomb or a detonator.

The chalkboard in the background was marked up as though a real teacher had conducted a lesson with the well known perfect square trinomial factoring formula stating that a squared plus 2ab plus b squared equals a plus b quantity squared. Next to this was an incomplete tic-tack-toe game.

The most cryptic scribbling on the chalkboard was LBJ=HH=Hsquared=RFK. Do these symbols mean Lyndon Baines Johnson, Hubert Humphry , and Robert Fitzgerald Kennedy intimating some sort of assassination or conspiracy or plot? Also, is pig being used as the 60’s offensive substitute for police officer here. Would love to hear from my nostalgic past on this one!

aperture in Venturi part may be partially occluded.
Some real algebra and mysterious history from famous detective series scene

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