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What actually causes thunder?

April 26, 2017actually causes thunder

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What actually causes thunder?

1 Answer

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10 Posted

From: James Richmond (Avatar) 6/03/99 11:15:39 Subject: re: Thunder post id: 2977 The flash of lightning heats the air to very high temperatures. Hot air expands – in this case very rapidly, at faster than the speed of sound. This creates a sonic boom, a loud cracking sound. This sound echos off clouds, buildings and the ground, causing the rumbling, rolling sound of thunder. This forum is un-moderated. The views and opinions expressed are those of the individual poster and not the ABC. The ABC reserves the right to remove offensive or inappropriate messages.