(I) Scientists who study tornadoes have a wide variety of powerful research tools at their disposal. (II) Moreover, they classify tornadoes based on the damage they wreak on manmade structures. (Ill) For instance, advances in computer technology make it possible to stimulate the thunderstorms that cause tornadoes. (IV) Doppler radars allow meteorologists to see the winds inside the storms, and modern video camera footage provides an unprecedented amount of high-quality documentation. (V) All these contribute greatly to the scientific understanding of tornadoes, which may eventually lead to increased tornado warning times, better guidelines for building construction, and improved safety tips.