Q: My horn quit working on my ’99 Civic; I was hoping to fix it myself. Can you offer pointers? A: Fixing your horn will be a great way to learn and apply basic electrical tests. Think of your battery ...

As a group of students stand by, watching, one fifth-grader places her hands on a silver globe as static electricity makes her hair stand on end. At another station, a student is peddling a stationary ...

In 2012, [Bruno] wanted to detect some bats. Detect bats? Some varieties of bat (primarily the descriptively named “microbats”) locate themselves and their prey in space using echolocation, the same ...