“LA VERDADERA IGNORANCIA NO ES LA AUSENCIA DE CONOCIMIENTOS, SINO EL HECHO DE REHUSARSE A ADQUIRIRLO” Karl Popper, filósofo austriaco
Explique y argumente sobre la frase anterior. ¿dónde crees que se origina el conocimiento?

Which planet do you think would be easiest for humans to colonize some day?

If a star is moving toward earth, it is

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?