What was the first man made object to break the sound burrier?

Many people think it was the XFJ-1 in 1952, but it was not.What was the first man made object to break the sound burrier?
From wiki: http://en.wikipedia.org/wiki/Sound_barri鈥?/a>





The bullwhip, or sparewhip, was probably the first human-made object to move faster than sound. The tip of the whip breaks the sound barrier and causes a sharp crack鈥攍iterally a sonic boom. Many forms of ammunition also achieve supersonic speeds.What was the first man made object to break the sound burrier?
Actually, the first object to break the sound burrier was the mole rat. As to the sound barrier, I'd have to Google it.
I agree with elaine, but if you are talking sound barrier it was probably the whip as the'; crack'; sound of a whip is the end of the lash breaking the speed of sound as it is snapped.


next would be a projectile fired from a gun of some sort but the sound is overpowered by the guns explosion
Chuck Yeager in 1947 flying the Bell X-1
A bullwhip.
the X1 in 1947. Chuck Yeager
chuck yager