sixpenceee:Many people have heard of sonic booms but few have seen one. . When an airplane travels at a speed faster than sound, waves of sound emitted by the plane cannot precede the plane, and so accumulate in a cone behind the plane. When this

sixpenceee:Many people have heard of sonic booms but few have seen one. . When an airplane travels at a speed faster than sound, waves of sound emitted by the plane cannot precede the plane, and so accumulate in a cone behind the plane. When this

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from: https://www.tumblr.com/blog/view/allthingsgoodandbad/113861316402