¿Hay algo mal en mí?

Planck consideró como tarea científica suprema la búsqueda de las leyes que rigen el absoluto, el invariante oculto en la realidad externa. Le cupo el privilegio de descubrir uno de esos elementos universales: el quantum de acción, la constante h.

Provides examples and tips for making things better when one has made a mistake that upsets someone else.

In the winter of 1856, a storm delays the lighthouse keeper's return to an island off the coast of Maine, and his daughter Abbie must keep the lights burning by herself.

This book offers a fun way to learn about 16 of the Prado's most important paintings. Each two-page spread teaches about the artist and the painting and asks readers to locate five objects in the artwork.