When a cricketer throws a cricket ball the ball executes a parabola.
When a nuclear bomb detonates the mushroom cloud is actually a parabola.
Rockets fired from launching pads execute a parabola in space.
Streamlined flow of fluid through a pipe forms a parabola.
Hertz stress profile on metals takes the shape of a parabola.
Lubricating film under load forms a parabola.
Shape of tree top is parabolic.
Shape of a mountain peak is approximately a parabola.
Vapor coming off a cooling tower tries to form a parabola before it disperses.
Why?
Is parabolic motion antigravity?