Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out.

In a recent paper [1], the author shows that in spacetime physics, the Selleri transformations (STs) are viable alternatives ...

Abstract: This article proposed robust control algorithms to cope with dynamic uncertainties in nonlinear bilateral teleoperation system with variable time delays and without relative velocity. With ...