Libros de Rafael Andrés Alemañ Berenguer (2 libros)

Are we visited by alien civilizations whose advanced technology far exceeds our own? Are there individuals whose mind power can challenge the laws of nature? Is there an afterlife beyond death that we can contact in exceptional circumstances? These and other similar questions, which have worried the mankind since time immemorial, are analyzed in this work without passion and with the utmost objectivity. It considers only the facts with maximum fairness. A pleasant and rigorous examination of these enigmas will show unexpected conclusions for all those who dare to read these pages without...

Apenas nadie pudo augurar el éxito que la expresión agujero negro, inventada en 1968 por el físico estadounidense John Archibald Wheeler, alcanzaría con el correr de los tiempos. La idea de un cuerpo cuya masa fuese tan enorme que su gravitación retuviese incluso a la luz impidiéndole escapar de su influjo...