An oblong crystal the size of a cigarette packet was found on a ship next to a pair of dividers, suggesting that it was part of the navigational equipment.

科学家在船只废墟中一对圆规旁边发现一块香烟盒大小的长方形水晶，表明这是航行设备的一部分。

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The statue depicts the inventor with a model of the Camborne locomotive under one arm and a pair of dividers in the other.

BBC: Camborne celebrates inventor Richard Trevithick

An oblong crystal the size of a cigarette packet was next to a pair of dividers - suggesting it was part of the navigational equipment.

BBC: 'Viking sunstone' found in shipwreck