Ciencia La ciencia considera distintos hechos, que deben ser objetivos y observables. Estos hechos observados se organizan por medio de diferentes métodos y técnicas, (modelos y teorías) con el fin de generar nuevos conocimientos. Para ello hay que establecer previamente unos criterios de verdad y asegurar la corrección permanente de las observaciones y resultados, estableciendo un método de investigación. La aplicación de esos métodos y conocimientos conduce a la generación de nuevos conocimientos objetivos en forma de predicciones concretas, cuantitativas y comprobables referidas a hechos observables pasados, presentes y futuros. Con frecuencia esas predicciones pueden formularse mediante razonamientos y estructurarse como reglas o leyes generales, que dan cuenta del comportamiento de un sistema y predicen cómo actuará dicho sistema en determinadas circunstancias. Unidad del saber científico: clasificación de las ciencias[editar] En la Ilustración escribe D'Alembert:
Wallpaper Search Picture Album Wallpaper Show Titles Applying and removing HubbleSite wallpaper Email list: Inbox Astronomy RSS feed: NewsCenter HubbleSite iPhone App Get Involved Reference Desk Servicing Missions Hubble's 25th Anniversary eBooks HubbleSite: WebbTelescope: About Contact Us Copyright How Far Away is the Sun? Another Visualization. - Brad BlogSpeed Alright, this one’s a doozy. After the reasonable popularity of last week’s scale picture that illustrated the distance between the Earth and the Moon, I just had to take things to the next logical level. Today I’ve reduced the scale, and increased the image size dramatically, to represent one astronomical unit (AU), or the distance between the earth and the Sun.* So allow me to just say ahead of time that I apologize if this post breaks anyone’s computer. I also realize that this down scrolling visual device, one that worked so well on the moon example, strains its usefulness here. But try not to, at least for a while. I had a thought while working on this today, the kind of thought that always gives me pause. If you enjoyed this post, please consider: Vidpicks is where I aggregate all the cool science/art videos I either create or scour up from across the web, and is filled with interesting, informative, and inspiring content. Cheers! *The mean distance of course. <<back to blog
Lawrence Krauss: Life, the Universe and Nothing Video Log in Get Smart Cynthia Yildirim Lawrence Krauss: Life, the Universe and Nothing Lawrence Krauss is a professor in the Department of Physics at Arizona State University. posted 3 years ago wmayeaux liked this N30Sniip3r liked this lecnt liked this Mycroft liked this ccromp liked this Tyler Terrell liked this Mick Rogers liked this Iliya Dgidgi liked this Janet Bloem liked this MP Oddity liked this bigdaddy1225 liked this © 2014 Redux, Inc. about redux | contact us | copyright | legal The Nine Planets Solar System Tour 12 Must-See Skywatching Events in 2012 | 2012 Skywatching Events Guide & 2012 Venus Transit | Amateur Astronomy This story was updated on Jan. 2. As the year 2011 comes to a close, some might wonder what is looming sky-wise for 2012? What celestial events might we look forward to seeing? I've selected what I consider to be the top 12 "skylights" for this coming year, and list them here in chronological order. Not all these events will be visible from any one locality … for the eclipses, for instance, you'll probably have to do some traveling … but many can be observed from the comfort of your backyard. Hopefully your local weather will cooperate on most, if not all, of these dates. Jan. 4: Quadrantid meteor shower peaks This meteor shower reaches its peak in the predawn hours of Jan. 4 for eastern North America. From the eastern half of North America, a single observer might count on seeing as many as 50-to-100 "Quads" in a single hour. The first major meteor shower of 2012 takes place on the night of Tuesday, Jan. 3 and the morning of Wednesday, Jan. 4. March 3: Mars arrives at opposition
NRAO Very Large Array If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system Mercury Venus Earth You Are Here Moon Mars Jupiter Io Europa Ganymede Callisto Saturn Titan Uranus Neptune Pluto(we still love you) That was about 10 million km (6,213,710 mi) just now. Pretty empty out here. Here comes our first planet... As it turns out, things are pretty far apart. We’ll be coming up on a new planet soon. Most of space is just space. Halfway home. Destination: Mars! It would take about seven months to travel this distance in a spaceship. Sit back and relax. When are we gonna be there? Seriously. This is where we might at least see some asteroids to wake us up. I spy, with my little eye... something black. If you were on a road trip, driving at 75mi/hr, it would have taken you over 500 years to get here from earth. All these distances are just averages, mind you. If you plan it right, you can actually move relatively quickly between planets. Pretty close to Jupiter now. Sorry. Lots of time to think out here... Pop the champagne! We're always trying to come up with metaphors for big numbers.