Scientists can’t just purify radioactive elements and put them in Tupperware. Clarice Phelps explains how isotope separation works for space batteries.
General Electric and Pratt & Whitney are fighting over the next F-35 engine. It s the most expensive defense program in history, so the stakes are high.
A student of nautical archaeology at Texas A&M University has created a naval ram, a nearly 3,000-year-old weapon used by the ancient Greeks and Romans.