The Rise of the SuperProfessor | SM Where is M13? - Home Where is M13? — A Three Dimensional Galactic Atlas! We all have our favorite deep sky objects that we've looked at hundreds and hundreds of times. Where is M13? At home, Where is M13? Using paired face-on and edge-on views, the Galaxy View shows you where that cluster or nebula is actually located relative to the center and plane of the Galaxy, providing a unique 3-D perspective. Below the paired views, the Object List provides important physical information about the objects. The Sky View shows you where the objects are found in the night sky, using a star map plotted in galactic coordinates. Where is M13? Where is M13?
HippoCampus - Homework and Study Help - Free help with your algebra, biology, environmental science, American government, US history, physics and religion homework 100+ Sites to Download All Sorts of Things These days you can find all sorts of things online, from audio books to flash files, from sound effects to CSS templates. Below we compiled a list with over 100 download sites that serve that purpose. We will also try to keep the list updated, so if your favorite download site is not here, let us know about it with a comment. Audio Books Librivox: One of the most popular audio libraries on the web. Podiobooks: Similar to podcast, Podiobooks are serialized audiobooks that are distributed through RSS feeds. Oculture (Audio & Podcast): Offers a rich array of educational and cultural media. Learn Out Loud: A one-stop destination for video and audio learning resources. BitTorrent The Pirate Bay: The web’s largest collection of bit torrent trackers. Mininova.org : What started as an alternative to the now defunct Supernova that went offline in 2004, Mininova has become the biggest torrent search engine and directory on the web. Books and Documents eBooks Ebookee: A free book search engine. Clipart
Electromagnetic Spectrum - Introduction The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays. You know more about the electromagnetic spectrum than you may think. The image below shows where you might encounter each portion of the EM spectrum in your day-to-day life. The electromagnetic spectrum from lowest energy/longest wavelength (at the top) to highest energy/shortest wavelength (at the bottom). Radio: Your radio captures radio waves emitted by radio stations, bringing your favorite tunes. Microwave: Microwave radiation will cook your popcorn in just a few minutes, but is also used by astronomers to learn about the structure of nearby galaxies.