Wave explains ‘beast’ sighting

THE description of “the beast” by Aldie Mackay reported on 14 April, 1933, which started the modern legend of Nessie (The Week, 24 February) is consistent with that of a standing wave, a wake-interference effect which is caused by the disturbance of a calm surface by boat movement out of sight somewhere on the lake.

Steuart Campbell, Edinburgh

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