Example sentences of "[is] visible [prep] the naked eye " in BNC.

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1 Because they are so faint , not a single one is visible to the naked eye .
2 This stripe , which gives rise to the alternative name for this area , the striate cortex , is visible to the naked eye in sections of the human brain .
3 It is a majestic ciliated sphere , the largest known sperm of any organism , plant or animal , so big that a single one is visible to the naked eye .
4 However , there are two exceptions : the Magellanic Clouds , so named because they were recorded by the Portuguese explorer Magellan in his voyage round the world — though they must have been noticed earlier , because they are very bright — and the Large Cloud is visible with the naked eye even in moonlight .
5 The Eta Carinæ nebula is visible with the naked eye .
6 It is visible with the naked eye , and its position close to Eta and Mu makes it very easy to locate .
7 It is visible with the naked eye , and with × 12 I have suspected individual stars ; with × 20 there is undoubtedly some degree of resolution .
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