Katie Boer, KREM 2 NEWS weather anchor, has two children demonstrate the sound of thunder by popping a paper bag March 18, 2015, at Fairchild Air Force Base, Wash. Boer taught the students lightning travels faster than sound and is why thunder is heard after lightning is seen. ( Air Force photo/Airman 1st Class Nicolo J. Daniello)

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Size: 1938px × 1290px
Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

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