Doctor Who
Object

Doctor Tyler's Developing Plate

A darkened glass tray marked with etched gridlines, positioned on Tyler’s workbench before the catastrophe. Its surface is streaked with residue from previous cosmic ray exposures, the edges chipped from repeated handling. The Doctor identifies this plate as the origin point of the kinetic energy release that dispersed Tyler, noting that the plate’s mass and position disrupted the antimatter entity’s arrival sequence. Benton secures nearby drains after the incident, implying residual contamination risks.
2 appearances

Purpose

Serves as the containment vessel for Tyler’s cosmic ray experiments, designed to absorb and direct energy bursts for temporal migration studies.

Significance

The developing plate becomes the pivotal artifact linking Tyler’s disappearance to the antimatter entity’s manifestation, demonstrating how mundane equipment can trigger existential threats when misused.

Appearances in the Narrative

When this object appears and how it's used

2 moments
S10E1 · The Three Doctors Part 1
Brigadier learns Tyler vanished in disaster

The developing plate produced by Tyler lies inside the open investigation box; it becomes the primary physical evidence of Tyler’s disappearance and the kinetic energy release, its displaced state and gridlines crucial to the Doctor’s analysis of the antimatter breach.

Before: Under personal development by Tyler on the workbench; mass and position later disrupted by the antimatter entity’s arrival sequence.
After: Moved from workbench to inside the open investigation box; part of the crime scene of Tyler’s disappearance.
View full event
S10E1 · The Three Doctors Part 1
Doctor deduces antimatter entity hunts him

Doctor Tyler’s developing plate, found open in the evidence box, holds distorted radiographic evidence of a faceless void and skewed cosmic ray trajectories. The Doctor identifies it as the origin point of the kinetic energy release that dispersed Tyler, linking the plate’s disruption to the entity’s arrival.

Before: Contained within the evidence box, showing partial cosmic ray exposure
After: Opened and examined, revealing clues to Tyler’s disappearance and the entity’s method
View full event