In the face of global catastrophe, how will you ensure the survival of yourself and your loved ones?END-TIMES SURVIVAL TACTICS offers essential strategies for navigating the chaos of a world in coliapse. From protecting your family during conflict to preparing for long-term self-sufficiency, this guide provides crucial knowledge for the most chalienging times.Learn to recognize and respond to end-time dangersDevelop practical survival strategies for extreme ...

Dive into a mind-bending exploration of the physics of black holesBlack holes, predicted by Albert Einstein’s general theory of relativity more than a century ago, have long intrigued scientists and the public with their bizarre and fantastical properties. Although Einstein understood that black holes were mathematical solutions to his equations, he never accepted their physical reality—a viewpoint many shared. This all changed in the 1960s and 1970s, when a deeper...

«I buchi neri di Gubser e Pretorius sono una breve ed elegante introduzione alle proprietà fondamentali dei buchi neri e alla presenza di questi giganti nell’universo. Ne raccomando caldamente la lettura a chiunque. »Roger Penrose, autore di La strada che porta alla realtà e La mente nuova dell’imperatore«Divertente e informativo. I buchi neri è scritto bene, bene organizzato e molto godibile.»Gary Horowitz, University of Cal...

Black holes, predicted by Albert Einstein's general theory of relativity more than a century ago, have long intrigued scientists and the public with their bizarre and fantastical properties. Although Einstein understood that black holes were mathematical solutions to his equations, he never accepted their physical reality?a viewpoint many shared.After introducing the basics of the special and general theories of relativity, this book describes black holes both as astrophysical obje...