Steve Caniano, vice president of AT&T Hosting and Cloud Services, describes network-based on demand computing. Known as AT&T Synaptic Compute as a Service, the new service is designed to give companies of all sizes simple, on-demand access to scalable computing capacity. For more information on this global cloud-based service, go to http://www.synaptic.att.com.
Duration : 0:3:45
developerWorks interviews Steven Gerhardt, vice president of business development for Ixion, an IBM Premier Business Partner, focused on portal and collaboration solutions. Steve talks about the value of now having access to IBM software through the Amazon Elastic Compute Cloud (EC2).
Duration : 0:7:34
developerWorks interviews Steven Gerhardt, vice president of business development for Ixion, an IBM Premier Business Partner, focused on portal and collaboration solutions. Steve talks about the value of now having access to IBM software through the Amazon Elastic Compute Cloud (EC2).
Duration : 0:7:34
Tutorial for novice webmaster that want to learn how to deploy a linux server from a cloud server. I use Rackspace for this tutorial. After you deploy the server I should how easy it is to install Mysql, Apache2, and PHP5.
All the steps can be copied and pasted from my blog post: http://bit.ly/7ARFwy
Duration : 0:9:34
Klaus Oestermann of Citrix and Peter Weber of Carpathia Hosting discuss enterprise and federal cloud solutions.
Duration : 0:1:24
Engine Yard executives talk about the Engine Yard Cloud, Ruby on Rails, and the future of web development.
Duration : 0:4:33
Chapter 5 Homework
1. Why was Pluto recently closer to the Sun than Neptune?
•For most of its orbit, Pluto is more distant than Neptune, reaching out as far as 49 astronomical units (49 times the distance from the Earth to the Sun). But it has such an eccentric, elliptical orbit that it gets much closer, reaching a mere 29 AU. And during that time, it’s actually orbiting within the orbit of Neptune. The last time Pluto and Neptune made this switch was between February 7, 1979 and February 11, 1999. And give it another couple of hundred years and it’ll happen again
2. Why do astronomers believe that the solar nebula was rotating?
•Rotation occurred because the formation of nebulae is turbulent, meaning that they are created with many slowly swirling regions, like so much smoke rising for a fire.
3. To test your understanding of the formation of the solar system, do Interactive Exercise 5-1 on the Web site. Explain what is happening in each figure. You can print out your results, if required.
•
4. Describe four methods that exist for discovering extrasolar planets.
•A) A planet and its star both orbit around their common center of mass, always staying on opposite sides of that point. The planet’s motion around the center of mass often provides astronomers with the information that a planet is present.
•B) As a planet moves toward or away from us, its star moves in the opposite direction. Using spectroscopy, we can measure the Doppler shift of the star’s spectrum, which reveals the effects of the unseen planet or planets.
•C) If a star and its planet are oving across the sky, the motion of the planet causes the star to orbit its center of mass. This motion appears as a wobbling of the star across the celestial sphere
•D) If a planet happens to move in a plane that takes it across its star as seen from earth, then the planet will hide some of the starlight, causing the star to dim. This change in brightness will occur periodically and can revel the presence of a planet.
5. What two properties of a planet must be known in order for its average density to be determined? How are these properties determined?
•Total mass and total volume.
•Kepler’s laws enable us to determine the mass of each planet from the periods of their moons’ orbits.
•The measured diameters of the planets (determined from their distance; from Earth and angular sizes in the sky) yield their volumes
6. How can Neptune have more mass than Uranus but a smaller diameter? Hint: See table 5-2
•It’s made up of different elements.
7. The Earth had formed around the of the first generation stars created in the universe? What chemical elements would the Earth then be composed of? Could we humans exist on that version of Earth? Why or why not?
•Carbon, silocone, & Iron. Yes. We are carbon based life forms
9. The accretion process of planet formation was still going on? How would life in general on Earth be different and how might we be different?
•Earth would be bombarded by other pieces of rock collecting together which would create a hostile environment. We would probably be subterranean.
10. The solar system passed through a cloud of gas and dust that was beginning to collapse to form a new star and planet system? What might happen to the Earth and how would the passage affect the appearance of the sky?
•The Earth might heat up and the sky would turn the color of the nebula.
11. Search the Web for information about recent observations of protoplanetary disks. What insights about the formation of the solar system have astronomers gained from these observations? Explain the evidence astronomers have, from these observations, that planets are forming in these disks.
•As accretion continues within a protoplanetary disk, sizable objects known as planetesimals form which, after several million years, give rise to small, rocky planets close to the host star. Further out, where it is cold enough for ice to form in the disk, more solid material is available for world-building. Gas giants, like Jupiter and Saturn, may start with cores of rock and ice of about 10 Earth-masses and then sweep up large quantities of light gases to form thick atmospheres. This should result in the creation of a central cavity within the circumstellar disk, similar in size to the solar system, and a drastic depletion of the disk’s gas content. Recent observations, for example of the 10-million-year-old star HR 4796A, provide evidence for this view.
13. Search the Web for information about the planet orbiting the star HD 209458. This planet has been detected using two methods. What are they? What have astronomers learned about this planet?
•By transit and Spectroscopic studies.
•The atmosphere is at a pressure of one bar at an altitude of 1.29 Jupiter radii above the planet’s center
•on November 27, 2001 the Hubble Space Telescope detected sodium, the first planetary at
google it. and if your in high school i dont think your teacher would mind if you get questions wrong as long as you attempted to do it and made it look like you put more than 15 min of effort in it
This word cloud best describes our customer service focus.
Duration : 0:0:13
Shattering earthquakes, massive tidal waves and simultaneous volcanic eruptions will follow. Nuclear reactors will melt, buildings will crumble, and a cloud of volcanic dust will block out the sun for 40 years. Only the prepared will survive, Geryl said, and not even all of them.
These may sound like the ravings of a madman, or perhaps the head of a small apocalyptic sect. But Geryl is not the only one who believes in the apocalypse. Thousands of people worldwide seem to be preparing, in one way or another, for the end of days in 2012. Survival groups exist in Europe, Canada and the United States. A simple Google search for "2012" and "the end of the world" brings up nearly 300,000 hits. And the video-sharing Web site YouTube hosts more than 65,000 clips informing and warning viewers about their fate in 2012.
And what was that blocking out in Fox News>
http://www.youtube.com/watch?v=rTBqMnZinEY
2012 Conference on Fox 11 Los Angeles
http://www.youtube.com/watch?v=0AK-eXlyg
http://abcnews.go.com/International/story?id=5301284&page=1 ABC NEWS
personally i do think that something of significant historical impact will happen in the time around 2012. I think that there will likely be SOME sort of specific event that happens then, and likely relating to the astronomical phenomena(which is a known fact that will happen… not speculation) in some way.
but I don’t think its gonna be some sort of the worst case Y2K imaginings to the n’th power or any such nonsense. I think its much more likely to be subtle things.
I find people such as that, to be rather amusing and absurd. I mean why would nuclear power plants spontaneously melt down or things like that? I think against some of the things they think will happen, "the system" is more resillient than they think.
and I find little to suggest that things of the magnitude and breadth that they are so certain about, are even anything to expect.
Mosso has just become The Rackspace Cloud. At Structure 09, we spoke with Lew Moorman, President of The Rackspace Cloud, about the company’s strategy and enterprise interest in cloud computing.
For more data center news and video, visit our web site: http://www.DataCenterKnowledge.com
Duration : 0:9:14