Thunder
Thunder is the sound caused by lightning. Depending on the nature of the lightning and distance of the listener, thunder can range from a sharp, loud crack to a long, low rumble (brontide). The sudden increase in pressure and temperature from lightning produces rapid expansion of the air surrounding and within a bolt of lightning. In turn, this expansion of air creates a sonic shock wave, similar to a sonic boom, which produces the sound of thunder, often referred to as a clap, crack, or peal of thunder. The distance of the lightning can be calculated by the listener based on the time interval from when the lightning is seen to when the sound is heard.
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Famous quotes containing the word thunder:
“You will trail across the rocks
and wash them with your salt,
you will curl between sand-hills
you will thunder along the cliff
break retreat get fresh strength
gather and pour weight upon the beach.”
—Hilda Doolittle (1886–1961)
“O the orator’s joys!
To inflate the chest, to roll the thunder of the voice out from the ribs and throat,
To make the people rage, weep, hate, desire, with yourself,
To lead America—to quell America with a great tongue.”
—Walt Whitman (1819–1892)
“It is the mind that is woven, the mind that was jerked
And tufted in straggling thunder and shattered sun.”
—Wallace Stevens (1879–1955)