Light Waves
Light Waves In this universe there are many thing that we cannot explain. Among these many things is light. Light, as far as we know, come in different wavelengths and the size of the wavelength determine what type of light it is. The middle wavelength lights are what gives us the seven basic colors of red, orange, yellow, green, blue, indigo and violet. Beside these visible lights there are the lights that cannot be seen by the human eye. These invisible lights can be grouped into two other groups the long waves and short waves. The first group of waves is the longer wavelength of light including infrared and radio waves. Radio waves, the longest wavelengths, alternate and can be volatile. Arthur C. Clarke said in the essay "The Light of Common Day" that since radio waves fluctuate so much no animal has ever been able to sense them. He goes on to say that if you had an eye big enough to see radio waves your eyes would be millions of times larger than a normal eye. The next longest wave is the infrared light waves. Infrared light is used nowadays to see in the night. Special goggles are designed to pick up infrared light making it possible to see at night. The next group of light waves are the shorter waves of ultraviolet and x-rays. Ultraviolet light, sometimes referred to as UV, is right next to violet and is just beyond sight. UV light is what causes sunburns and can
Universe - Definitions
Quasars Possibly extremely dense neutron stars giving off radiation. Once thought to be the bright centre of other galaxies. Pulsars These are neutron stars that emit an enourmous amount of radiation. They spin hundreds of times a second and we pick up the radio waves on Earth. Neutron Stars Formed from very large stars collapsing. Between 10 and 100 km in diameter a they can have a mass many times that of the sun. A star 8 times that of the sun creates a neutron star 1.5 times that of the sun. The rest of the mass is blown into the space. Black Holes Black holes that are worth considering are only found at the centre of galaxies. The centre of every galaxy has a black hole. It keeps the galaxy together with its immense gravity and is 10 times denser than what would be expected if there were just stars at the centre of our galaxy. Nothing escapes, not even light. Photons are captured and added to the gravity. 0 point field No dimensions. Cells take light from it to tell other cells where to go in growing. Where does gravity come from? There is infinite energy from gravity so in theory it could be converted into infinite