NATS 1880 Lecture Notes - Hertz, Big Bang
Document Summary
Drake equation: r x fp x n x fi x fi x f x l= n (from online versi. on linked to website) Number of communicable civilizations in the milky way today = n. Ideal frequencies would be frequency of 1420 megahertz,( is a signal that neutral hydrogen will blow at. graph shows on the x-axis frequency of radio emission. Signal pales off sharply at about 1 gigahertz. Dark line is the radiation left over from the big bang ( cosmic background) it is the radiation left from big bang. When you add all the sources together = light blue line, peaks are result due to oxygen and water, Ideal place to listen is the quietest (lowest level on y-axis) Blue curve is source of all noise but it doesnot include the. Square kilometer (100 times bigger than all the radio telescopes) world is searching for where to build it,