Just click on “next’ for some totally fascinating photos of children and the material cultures of their lives.

At Harvey Mudd College in California, about 40 percent of the computer science majors are women. That’s far more than at any other co-ed school. And it’s thanks in large part to the school’s president, Maria Klawe. She has worked hard to keep women interested in computer science and empower them to succeed in the field.

Researchers reported evidence that years and billions of dollars had been wasted following false leads on at least three major killers in humans — sepsis, burns and trauma.