In this lesson we will be exploring the world of chemical relaxing. This lesson will serve as a basic guide to the process of using chemicals to permanently straighten the hair. Upon completion of this lesson, students will be able to...

At the end of this tutorial, the learner will understand and be able to use basic techniques to reduce intensity of their own fight or flight reaction. It is 2 of 3 in the series titled "Quelling the Adrenaline Response."

Learners are introduced to the concept of viscoelasticity and some of the material behaviors of viscoelastic materials, including strain rate dependence, stress relaxation, creep, hysteresis and preconditioning. Viscoelastic material...