Using matrix representations of l, to prove ,l-h

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

technology is the application of the knowledge gained by science.