Numerical answer
The following paragraph has five sentences, numbered 1-5. Four of them form a coherent paragraph when arranged correctly; one sentence does not belong at all. Identify the sentence number that does not fit.
1. The Antikythera mechanism, recovered from a shipwreck off a Greek island in 1901, is now understood to be an astronomical calculator of remarkable sophistication for its time, roughly the second century BCE.
2. Ancient Greek shipwrecks have yielded numerous other artefacts, including amphorae used to transport wine and olive oil across the Mediterranean.
3. X-ray imaging of its corroded bronze fragments revealed over thirty interlocking gears, used to predict the positions of the sun, moon, and possibly the known planets.
4. No comparable geared mechanism appears again in the historical record for well over a thousand years, raising the question of how such expertise was lost.
5. Scholars now regard it as evidence that ancient Greek engineering was considerably more advanced in precision mechanics than previously assumed.
1. The Antikythera mechanism, recovered from a shipwreck off a Greek island in 1901, is now understood to be an astronomical calculator of remarkable sophistication for its time, roughly the second century BCE.
2. Ancient Greek shipwrecks have yielded numerous other artefacts, including amphorae used to transport wine and olive oil across the Mediterranean.
3. X-ray imaging of its corroded bronze fragments revealed over thirty interlocking gears, used to predict the positions of the sun, moon, and possibly the known planets.
4. No comparable geared mechanism appears again in the historical record for well over a thousand years, raising the question of how such expertise was lost.
5. Scholars now regard it as evidence that ancient Greek engineering was considerably more advanced in precision mechanics than previously assumed.
Show answer and solution
Answer: 2
Sentences 1, 3, 4 and 5 all concern the Antikythera mechanism specifically: its discovery and identification (1), the gear mechanism revealed by imaging (3), its historical isolation (4), and its implication for our view of ancient engineering (5). Sentence 2, about amphorae and general Mediterranean shipwreck cargo, shifts to an unrelated topic and does not contribute to the paragraph's focus on the mechanism itself. It is the odd one out.
Saved on this device. Sign in or create a free account to keep it on every device.