This is the science of what, where, and how of rip currents. Most lifeguard rescues on ocean beaches in the United States are for rip currents. See how to avoid rip currents and learn safety from these killer currents on beaches. They...

Howcast - Learn about the top seven museums to visit when you're in Boston in this Howcast travel video.

From the section: Steps for Ethical Hacking. In this part, you are going to learn how hackers think and act before and after they hack a system, and how they gather sensitive information. We’ll follow the same steps to test whether...

Leslie T. Fenwick, PhD, is a nationally-known education policy and leadership studies scholar who served as Dean of the Howard University School of Education for nearly a decade. A former Visiting Scholar and Visiting Fellow at Harvard...