Normally, a plane moves along three rotational axes. “Inertia coupling” takes place when the plane inadvertently moves on two at the same time, usually resulting in loss of control.

Figure 2: Degree of negative ambient gravity for (29075) 1950 DA. The free parameters to be constrained by the WISE observations in the model fitting include the diameter, thermal inertia, surface ...

(Phys.org)—Newton's gravitational constant, G, has been measured about a dozen times over the last 40 years, but the results have varied by much more than would be expected due to random and ...