Converging lenses Diverging Lenses The Lens Equation We can make use of the fact that changing the focal length and position of the object we can change.
OUR SOLAR SYSTEM Our solar system is nearly 5 billion years old. There are eight planets in space Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus,
Stars, Galaxies, and the Universe Section 1. Tools of Modern Astronomy Constellations: Patterns of stars in the sky. Constellations: Patterns of stars.
Optics and Telescopes