<span>ultrasonic wave i think</span>
Fam im just answering a question so i can get mine answered im sorry im no help but i think its gravity
A transcript of a presidential speech (APEX Class ;)
The problem of the "sound barrier" has to do with moving through
air, and the things the air does when you try to push it out of the
way faster than the speed of sound. Moving through air faster
than sound was an engineering and technological problem, not
a scientific one.
Concerning light, that's about 874 thousand times faster.
See the problem ?
