Curious Tidbits

“Why the spectacular spray of vapor around the plane? Engineers believe droplets of water form from moisture in the air around the plane as it speeds by, creating a drop in air pressure around it.”

Is it just me, or does this quote make it sound like the water droplets cause the pressure drop? This might make the physics clearer: “The vapor cone forms when the pressure drop accompanying the acceleration of the air around the craft to supersonic speeds causes the water vapor in the air to condense.” But that’s probably too complicated sounding…