Hartland Point is the north-coast-of-Devon headland where an international scientific gathering became the scene of a catastrophic weapons demonstration. Its exposed landscape—rabbit-cropped turf above the sea, with Lundy Island visible offshore—provided both the audience’s natural meeting place and the line of sight for an experiment that split the island apart and sent a destructive sea wall toward the coast.

Setting and approach

An international society of scientific workers was meeting at Plymouth when a young Chinese physicist requested an opportunity to report to a select committee. Because his experiments concerned the use of subatomic energy through the annihilation of matter, the forty international representatives travelled north to Hartland Point as instructed. The meeting thus moved from an organized scientific gathering to a bare headland chosen for the demonstration’s distant target.

The morning was bright after rain. Eleven miles to the northwest, the cliffs of Lundy Island stood out in unusual detail. Sea-birds circled above the party, whose members sat together on their raincoats on turf cropped short by rabbits. The account’s precise description of weather, distance, and terrain establishes the calm visibility that made the distant island seem available for inspection—and, moments later, for attack.

The scientific gathering

The visitors were described as individually distinctive but also marked by national types and by the scientific culture of their period. Their beliefs reflected a shift: where scientists had once tended toward materialism and cynicism, it had become fashionable to treat natural phenomena as manifestations of a cosmic mind. The narrator presents both tendencies as forms of belief adopted casually beyond the boundaries of serious scientific work.

Several figures give the meeting its international character. The German anthropologist displayed the athletic ideal associated with Nordic man; the elderly French psychologist watched with kindly cynicism and collected weapons; and the English physicist pursued the history of English expletives and slang alongside his scientific work. The society’s West African president was a biologist known for interbreeding humans and apes. These details make the committee more than an undifferentiated audience: they arrive with contrasting national identities, eccentric pursuits, and professional authority, but the demonstration will place them all in the same position as witnesses.

The demonstration at Hartland Point

The physicist presented his instrument as a means to end the war and, with a further device he said he would soon perfect, to provide unlimited industrial power. He claimed that the apparatus could make its users masters of the planet. He then turned toward Lundy Island, describing it as uninhabited and a danger to shipping, and announced his intention to remove it.

From Hartland Point he aimed at the distant cliff and explained that the instrument’s first trigger would cause the positive and negative charges in atoms at a chosen point to annihilate one another, with the process spreading to neighboring atoms. A second trigger would stop the reaction; without it, he warned, annihilation might continue until the planet itself disintegrated. The spectators moved anxiously as he took aim and pressed the triggers in quick succession.

At first there was no sound and no visible change to the island’s smiling outline. The Englishman began to laugh, then stopped as a dazzling point appeared on the cliff. It swelled into a brightness that blinded the observers, illuminated the undersides of clouds, and erased the shadows cast by gorse beside them. Steam rose from the boiling sea and veiled the light. Then three miles of granite split apart: great rocks shot upward, followed by a vast mushroom of steam and debris. The sound reached the headland after the sight, and the witnesses covered their ears while continuing to stare toward the bay, now white with falling rocks.

Consequences and narrative significance

The explosion did not remain confined to Lundy Island. A great wall of sea advanced from the upheaval, engulfed a coasting vessel, and continued toward Bideford and Barnstaple. From Hartland Point, the committee saw both the sudden destruction of the island and the outward-moving consequences of the experiment. The physicist watched with exultation, though he appeared surprised by the magnitude of what he regarded as secondary effects.

Hartland Point’s narrative importance lies in this contrast between a quiet, legible landscape and the scale of the force unleashed upon it. The island first appears as a clearly visible object across the water, then becomes the site of a reaction that threatens shipping and coastal settlements. The headland remains the observers’ vantage point throughout: its open view makes the demonstration possible, while the witnesses’ alarm registers how quickly a scientific claim of control has become a perilous material event.