Brigadier Lethbridge-Stewart's Map of the World

The Brigadier marks this world map with locations of global radio telescopes—Haystack, Algonquin, Arecibo, Cambridge, Tokyo, Vorograd—to triangulate the Mars Probe 7 signal's origin. He traces lines across continents, pinpointing an abandoned London warehouse seven miles from Space Control. The Doctor peers at it amid tense collaboration, bypassing the room's digital systems lacking a local map. Creases from handling reveal its urgent deployment as a physical tool.

2 appearances

Purpose

Triangulate the mysterious signal's source using positions of worldwide radio telescopes

Significance

Transforms abstract signal analysis into a concrete target—the warehouse—for UNIT's direct intervention, heightening urgency and propelling the plot from speculation to action

Appearances in the Narrative

When this object appears and how it's used

2 moments

S7E12 · The Ambassadors of Death Part 1

Triangulation reveals London warehouse source

The Brigadier’s Map of the World is a critical tool in this event, serving as the physical interface for triangulating the signal’s origin. The Brigadier marks locations of global radio telescopes (Haystack, Algonquin, Arecibo, etc.) with pins, then traces lines across continents to pinpoint the warehouse. The map’s tactile, analog nature contrasts with Space Control’s digital systems, symbolizing the Brigadier’s reliance on direct, actionable intelligence. Its creases and handled condition reflect its urgent deployment, reinforcing the stakes. The map’s role is functional (providing coordinates) and symbolic (representing the shift from global speculation to local action).

Before: Unmarked, representing the team’s initial lack of a precise location.

After: Annotated with pins and lines, now displaying the exact triangulated location of the warehouse.

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S7E12 · The Ambassadors of Death Part 1

Signal triangulated to London warehouse

The Global Radio Telescopes (Haystack, Algonquin, Arecibo, Cambridge, Tokyo, Vorograd) are the technical backbone of the triangulation effort, their combined data essential to narrowing down the signal’s origin. The Brigadier and Doctor list them methodically, their names becoming a litany of global cooperation. Liz’s relay of Nancy’s confirmation from France integrates these telescopes into a cohesive network, their data converging to pinpoint the warehouse. Without their precision and range, the triangulation would be impossible, making them indispensable tools in the race against time.

Before: Standing by, ready to monitor and relay signal data as part of the global network.

After: Actively engaged in the triangulation process, their data contributing to the identification of the warehouse as the signal’s source.

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