Photons

Presentation Dialogue
Presentation Dialogue
Presentation Dialogue SOLAR ENERGY. All life on Earth depends on energy from the sun. Solar energy is the source of energy for photosynthesis. It provides the warmth necessary for plants and animals to survive. The heat from the sun causes water on the Earth's surface to evaporate and form clouds that eventually provide fresh rainwater. Solar energy is the result of thermonuclear fusion reactions deep within the sun. These reactions produce so much energy that they keep the surface temperature
Lasers
Lasers
Lasers The light from lasers differs from ordinary light in several important aspects. Ordinary light from a light bulb travels randomly in all directions (unless the bulb is equipped with an integral reflector that directs the light). The light is thus incoherent. Even when incoherent light is directed with a reflector, it still spreads rapidly. The light from a laser is temporary and spatially coherent. This means that all of the wave-fronts of light are lined up in time and space (see Diagra
Solar Energy And Its Social Consequences
Solar Energy And Its Social Consequences
Solar Energy and Its Social Consequences To understand the social consequences of solar energy, one must be aware of what solar energy is. Solar energy is a radiant energy produced in the sun as a result of nuclear fusion reactions. It is transmitted to the earth through space in quanta of energy called photons, which interact with the earth?s atmosphere and surface. The strength of solar radiation at the outer edge of the earth?s atmosphere when the earth is at its average distance from the su
The Elegant Universe
The Elegant Universe
The Elegant Universe Part I: The Edge of Knowledge Chapter 1: Tied Up with Strings This is the introductory section, where the author, Brian Greene, examines the fundamentals of what is currently proven to be true by experimentation in the realm of modern physics. Green goes on to talk more about The Basic Idea of string theory. He describes how physicists are aspiring to reach the Theory of Everything, or T.O.E. Some suspect when string theory is completely understood that it might turn out t
Albert Einstein
Albert Einstein
Albert Einstein This German born physicist is considered one of the world's greatest thinkers in history. Not only did he shape the way people think of time, space, matter, energy, and gravity but he also was a supporter of Zionism and peaceful living. Einstein was born on March 14, 1879 in Ulm Germany, and spent most of his youth living in Munich, where his family owned a small electric machinery shop. He attended school in Munich, which he found unimaginative and dull. In addition to this he t