We treat space and time as bona fide quantum degrees of freedom on an equal footing in Hilbert space. Motivated by considerations gravity, we focus a paradigm dealing with linear, first-order Hamiltonian momentum constraints that lead to emergent features temporal spatial translations. Unlike the conventional treatment, show Klein-Gordon Dirac equations relativistic mechanics can be unified our...

The lower structure of a building construction consists foundation and layer soil to support the load upper construction. condition under is closely related behavior itself when it receives loads, for example failures that occur in sub-grade embankment foundation, namely too soft so carrying capacity withstand small, as result settlement occurs large. So must be strong, stable, safe, does not d...