A few butterflies and many moth species spin a silk case or cocoon prior to pupating, while others do not, instead going underground. A butterfly pupa, called a chrysalis, has a hard skin, usually with no cocoon.
4. tension - (physics) a stress that produces an elongation of an elastic physical body; the direction of maximum tension moves asymptotically toward the direction of the shear. natural philosophy, physics-the science of matter and energy and their interactions; his favorite subject was physics.
Part 3 in a series exploring the use of various dramatic elements. My definition of tension: Tension can sometimes be used as an interchangeable term with conflict. But where it differs, lies in the development of suspense in a performance. As the audience anticipates certain outcomes in the plot, the tension builds.An obvious example of rising tension is in a mystery or whodunit.ension can sometimes be used as an interchangeable term with conflict. But where it differs, lies in the development of suspense in a performance. As the audience anticipates certain outcomes in the plot, the tension builds.