October 2006 marks the 75th anniversary of the remarkable Tiger Moth's first flight. Thousands of pilots won their wings in this fantastic machine and it's a mark of the Tiger Moth's excellent design ...

When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...

Flutter is a form of aeroelastic instability that manifests itself with oscillations (see Figure 1) which either grow, and eventually lead to a structural failure, or remain at some constant-amplitude ...