PCCL | INTERACTIVE OPTICS SIMULATIONS | Flash animations - applet - for free on-line optics learning | Interactive Physics Simulations | Interactive Physics Animations | Educational, interactive and animated support to be viewed in class or at home for sciences. Lens, light, microscope, light, speed, moon, dispersive, emission, spectra, absorption, Snell, Descartes, refraction, reflexion. Physics and Chemistry by a Clear Learning in High School, Middle School, Upper School, Secondary School and Academy. Fun for teens. Free & interactive teaching for courses. Corrected exercises.