You throw a ball and it describes
a curve partly high and low.
Depending on the force of vibes
the hurl is faster or just slow.
Trajectory is what you call
the very special way
of any flying thing or ball
shot out or thrown in play.
No wonder that the science looks
like a playful word,
but only printed in the books.
Saying it seems absurd.
The flower in the picture stands
firm on even ground.
The sphere you can touch with your hands
is an accomplished round.