Hydroponic setups typically have the plants firmly anchored between the stem and the roots. So the plant is held in position. Usually the roots go through a large basket holding the base of the root mass and the rest trail in the liquid solution.
"There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."