×
Please click
here
if you are not redirected within a few seconds.
All
Images
Videos
News
Maps
Shopping
Books
Search tools
Any time
Any time
Past hour
Past 24 hours
Past week
Past month
Past year
All results
All results
Verbatim
Sound barrier
<
>
View all
The sound barrier or sonic barrier is the large increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound.
Wikipedia