· How long is a second? One second is the time that elapses during 9.192631770 x 109 cycles of the radiation produced by the transition between two levels of Cesium 133.
· How long is a meter?One meter is the distance traveled by a ray of electromagnetic (EM) energy through a vacuum in 1/299,792,458 (3.33564095 x 10-9) second.
Tus ojos negros y la curvatura de tu espacio producen en mi espacio-tiempo que todo se contraiga.