Most wireless communications use RF or radio frequency communications to send data back and forth. But all that information can slow things down. One National Science Foundation supported researcher is using light to send information, and, as we hear from VOA's Kevin Enochs, it’s quicker and more secure than RF.
Women are woefully underrepresented in technology, science, engineering and mathematics jobs in South Africa. But for the last decade, a homegrown, UNICEF-supported program has worked to bring 11,000 lower-income high school girls into these industries. VOA's Anita Powell catches up with a few such "TechnoGirls" in Johannesburg and brings us their stories.
Researchers from Israel's Antiquities Authority and European research institutions used laser technology and advanced photographic techniques to create richly detailed three-dimensional models of the hall built in the Crusader era.