How the XB-1 #aircraft went supersonic without a #sonicboom
In this case, the #BoomSupersonic #XB1 took advantage of a #physics phenomenon called the Mach cutoff. Because sound moves more slowly at higher altitudes, an aircraft breaching the sound barrier at those heights will produce a boom that cannot reach the ground – if the boom moves downward, the increasing speed of sound will deflect it, pushing its shock waves upward instead. https://www.newscientist.com/article/2467745-how-the-xb-1-aircraft-went-supersonic-without-a-sonic-boom/
New Scientist · How the XB-1 aircraft went supersonic without a sonic boom
NEW REVIEW
Olympic Games Tokyo 2020 (2021, Xbox One)
attendants d back baby! Full Video: XB-1 Takes Flight 
