Naslov
Submarine paradox softened

Autori
Nikolić, Hrvoje

Izvornik
American journal of physics (0002-9505) 90 (2022), 11; 841-847

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
submarine paradox ; general covariance ; relativistic fluid

Sažetak
In Supplee’s submarine paradox, a naive argument based on Lorentz contraction leads to a contradiction that a fast submarine should sink in the water’s reference frame but float in the submarine’s reference frame. Due to the submarine’s rigidity constraints, it is not easy to resolve the paradox in a manifestly covariant form. To simplify the problem, we consider a version of the paradox in which one fluid moves through another fluid. An analysis of ideal relativistic fluids in a weak gravitational field shows that the moving fluid has a larger pressure and, hence, sinks, in agreement with known results for the rigid submarine.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA