Calm77 : choreando a la banda en el... The White House: Photo of the Day: Presiden... Most Precise Measurement of Scale of the Universe. Physicists on the Baryon Oscillation Spectroscopic Survey (BOSS) have announced the first results from their collaboration, revealing the most precise measurements ever made of the large-scale structure of the universe between five to seven billion years ago.
They achieved this by observing the primordial sound waves that propagated through the cosmic medium a mere 30,000 years after the Big Bang. And so far, the data supports the theory that our universe as flat, comprised of roughly a quarter cold dark matter, and four percent ordinary matter, with the rest made up of a mysterious force dubbed “dark energy.”
ANALYSIS: The Universe is Precisely 13.75 Billion Years Old A hundred years ago scientists believed the universe was steady and unchanging. Einstein invented the cosmological constant to expand the fabric of space-time after his own equations for general relativity wouldn’t allow for the cosmos to remain static as expected in a steady state universe. SDO's Ultra-high Definition View of 2012 Venus Transit. Multimedia - Video Gallery. Multimedia - Video Gallery. In Memorian Carl Sagan - 1934 - 1996. First Contact [Carl Sagan Tribute Series, S02E03] Comparacion del Tamaño de los Planetas HD. Carl Sagan's Cosmos - Star Stuff. Carl Sagan - Pale Blue Dot. In Focus - The 2012 Transit of Venus. Observers around the world (at least those who who were blessed with clear skies) were able to look up yesterday and view our neighboring planet Venus as it passed directly between us and the Sun.
This rare event will not reoccur for another 105 years. Scientists used the six-hour transit as an opportunity to perform experiments, helping refine techniques to observe and measure distant exoplanets. Gathered here are images of yesterday's event, seen from from orbit and from here on Earth. [29 photos] Use j/k keys or ←/→ to navigate Choose: Venus moves across the Sun in this image captured by Japan's satellite Hinode, on June 6, 2012. Details on the relative sizes and distances involved in yesterday's transit of Venus. Planet Venus, visible as a black dot, in transit across the Sun near the Victory Tower in Chittorgarh, India, on June 6, 2012. A girl uses a sun observation glass to watch the transit of Venus in Medellin, Colombia, on June 5, 2012. In Focus - Afghanistan: May 2012. This month, President Obama and members of NATO involved in Afghanistan formally agreed on a transition plan, preparing to hand over security responsibilities to Afghan forces by the summer of 2013.
France's new president, François Hollande, restated an earlier pledge to remove all French combat forces from Afghanistan by the end of this year. Suicide bombings, IEDs, and a growing number of "green on blue" attacks (men in Afghan uniforms attacking coalition forces) continue to take a toll and limit security efforts. Gathered here are images of those involved in this conflict over the past month, as part of the ongoing series here on Afghanistan. [42 photos]
Perpetual Sun. Researchers capture first-ever images of atoms moving inside a molecule. The Science of Prometheus. Prometheus Poses Eternal Questions About Science, Creationism. In Prometheus, David (Michael Fassbender) is an android who lives amongst his makers and is unimpressed.
Photo courtesy 20th Century Fox. Funniest ventriloquist act ever. Dying laughing. Spanish Solar Energy. Photograph by Markel Redondo for Greenpeace In fact, it was too good to last. In the wake of an overheated solar market and the global financial crisis, Spain has slashed its renewable energy subsidies. And the solar boom under the Mediterranean sun has gone bust—a stunning reversal of fortune: In 2008, 40 percent of the world's solar installations were in Spain. But it's hardly the end of the road for the technologies nurtured on the Iberian peninsula. Spanish companies are working to export their know-how to the United States, Latin America and even to other European Union nations.
7-Cartel_Semaforo_Curvas. Blind Man Goes for a Spin in Google's New Driverless Car - Rebecca J. Rosen - Technology. Servicio Sismológico Nacional. Persigue tu objetivo. KONY 2012. Russian guys having fun driving. SEREBRO - Мама Люба. Mexico Adopts an Alarming Surveillance Legislation. The Mexican legislature today adopted a surveillance legislation that will grant the police warrantless access to real time user location data.
The bill was adopted almost unanimously with 315 votes in favor, 6 against, and 7 abstentions. It has been sent to the President for his approval. There is significant potential for abuse of these new powers. The bill ignores the fact that most cellular phones today constantly transmit detailed location data about every individual to their carriers; as all this location data is housed in one place—with the telecommunications service provider—police will have access to more precise, more comprehensive and more pervasive data than would ever have been possible with the use of tracking devices. The Mexican government should be more sensitive to the fact that mobile companies are now recording detailed footprints of our daily lives.
Sensitive data of this nature warrants stronger protection, not an all-access pass. Stay tuned for additional updates: Personal Health: Pedal Power Comes With a Duty for All. Annie Tritt for The New York Times When my mother asked what I wanted for my 16th birthday, I said, “A new bicycle.”
From her response — “How much longer are you going to be riding a bicycle?” — I knew I wasn’t going to get one. I muddled through on my aging Schwinn (bought secondhand when I was 10) for two more years, and then for my 18th birthday I bought myself a new bike. I am now 70, and I’ve never gone a year without a bike — not one that collects dust or serves as a clothes hanger, but a bike that is ridden nearly every day. Video: How MIT's Laser Camera Can See Around Corners. Back in late 2010, MIT Media Lab announced that it was working on technology that would allow a camera to see around corners and image objects that were never in its direct line of sight.
Now, the lab has released a video explaining exactly how they do this and showing the technology in action. Briefly, the system works by firing rapid femtosecond laser pulses--pulses so short they are measured in quadrillionths of a second--at a surface opposite the obscured object it is trying to image, like the wall opposite a doorway for instance. The laser light bounces off the wall and scatters. Some of that light hits the target object and likewise scatters. Centro de Servicio Autorizado Apple - Atajo. Here's How Apple Put a Retina Display in the iPad. The so-called "retina" display for the new iPad is by far its most obvious — and technologically remarkable — feature.
After all, the upgraded screen crams more than 3 million pixels in an area smaller than a piece of paper. How did Apple do it? A display analysis company has the answer.