Example sentences of "by the naked eye " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | He showed some incredible coloured slides giving close-up detail of petal formation and patterns not often seen by the naked eye . |
| 2 | The bone shows very fine splitting along the lines of orientation of the collagen fibres ( Fig. 1.4A ) and slight erosion of the pits and canals , but these are only visible under high magnification and can not be seen by the naked eye . |
| 3 | During this time Alcock had begun the long process of memorising the night sky ; by 1932 he already knew the position of most stars that can be seen by the naked eye . |
| 4 | Others including Anthias species , Cardinal fish and the colourful Royal Gramma are zooplankton feeders specialising in feeding upon macro planktonic organisms , that is zooplankton of a size easily seen by the naked eye . |
| 5 | It presupposes the false theory that the size of small light sources is accurately gauged by the naked eye . |
| 6 | They involved the absence of parallax in the observed positions of the stars and the fact that Mars and Venus , as viewed by the naked eye , do not change size appreciably during the course of the year . |
| 7 | Soon it could no longer be seen by the naked eye , but the professor continued to watch it through binoculars . |
| 8 | It would have been no use asking him whether he thought there was a unifying purpose in life , whether it could really be chance that an animal so small that it could n't be seen by the naked eye could die millions of years ago in the depths of the sea and be resurrected by science to prove a man innocent or guilty . |
| 9 | The adult worms which measure up to 2.5 cm are bloodsuckers , have a reddish colour and can be seen by the naked eye . |