In 2007, Pretorius and Khurana [Black hole mergers unstable circular orbits, Classical Quantum Gravity 24, S83 (2007).] did ``speculate that at threshold [at a critical impact parameter], all of the kinetic energy system [two ultrarelativistic black holes] is converted to gravitational waves, which can be an arbitrarily large fraction total energy.'' However, in 2012, Sperhake et al. [Universal...

Gravity balancing techniques allow for the reduction of energy consumptions in robotic systems. With appropriate arrangements, often including springs, overall potential a manipulator can be made configuration-independent, achieving an indifferent equilibrium any position. On other hand, such arrangements lose their effectiveness when some system parameters change, mass. This paper proposes met...

In this paper, we will discuss the traveler’s dilemma, a problem famous for its ability to point out how theoretical results of game theory don’t always translate properly into real life applications. We explore the paradox of rational agents being outperformed by agents playing randomly and explain what is the problem with backward induction. We comment on the results obtained by [CGGH99] when...