bird | Bird of prey | Important Bird Area | Marshall Space Flight Center | Goddard Space Flight Center | Pan Am Flight 103 | Flight of the Conchords | Hot Bird | Free Bird | Big Bird | Larry Bird | flight | bird of prey | George Bird Grinnell | Flight of the Conchords (TV series) | Flight | UTA Flight 772 | bird migration | transatlantic flight | Bird migration | Air France Flight 4590 | Flight Lieutenant | Bird | Andrew Bird | American Airlines Flight 11 | Pan Am Flight 103 bombing trial | Operation Deny Flight | Lady Bird Johnson | United Airlines Flight 175 | Korean Air Lines Flight 007 |
He mainly worked in the flying mechanisms of birds and insects, and demonstrated the mechanism of "double equilibrium" in Coleoptera.