Example of simile and analogy used in popular science writing,
"It would be quite futile to look for neutron tracks in the cloud-chamber pictures, since, having no electric charge, these 'dark horses of nuclear physics' pass through matter without producing any any ionisation whatsoever. But when you see the smoke from a hunter's gun, and the duck falling down from the sky, you know there was a bullet even though you cannot see it. Similarly looking at the cloud-chamber photograph…which shows a nucleus of nitrogen breaking up into helium (downwards track) and boron (upwards track), you cannot help feeling that this nucleus was hit hard by some invisible projectile coming from the left."
George Gamow (1961) One, Two, Three…Infinity. Facts and speculations of science, Revised Edition, Dover Publications, Inc., New York.
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