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Covering the basics of the forex market The foreign exchange, or forex, market is relatively young, having begun in the early 1970s after the United States dropped the gold standard and national currencies started to fluctuate widely. For about 30 years prior to that, most nations had agreed to keep their currency values stable [...] Who’s Linking to Your Web Site and What Does That Say About You to Google? By Stone Reuning (c) 2010 Linking is the mechanism that connects all the pages on the Internet. You’ve got links throughout your web site to let people navigate their way around. You may have links going out to other web sites that [...] It is the year 2010. Towards the end of 2009 I recapped on what I have achieved since I started this blogging thing, and where I am going. Looking back at when I started, to where I am now, actually surprised me. It is amazing how much knowledge and experience one can gain in a short [...] Today is the last day of the year 2009. For all of you I wish 2009 will have a happy ending and that 2010 will be a year of prosperity for everyone. For South Africans, especially Capetonians, it means that long awaited “Worldcup 2010” is around the corner. I went back into my archives. It is now [...] Sydney – A New Zealander was fined by an Australian court on Tuesday after a guilty plea over his part in a syndicate capable of sending 10 billion spam emails a day. Lance Atkinson, was fined 210 000 Australian dollars (about R1,3-million) for breaching the Spam Act 2003 in a case brought by the Australian Communications [...] Why 2010 Will Be A White Knuckle Ride For Web Marketers By Titus Hoskins (c) 2009 Next year may just prove to be one of the most challenging times for pursuing online or Internet marketing on the web. It may just be a watershed moment for many marketers struggling to keep abreast of all the different factors [...] Hackers using fake YouTube pages A deceptive YouTube attack evolving as it spreads on the Internet is part of a growing trend of hackers to prowl popular online social networking communities in which people trustingly share web links and mini-programs. “We are seeing tools like this not just for YouTube, but for MySpace, Facebook, America Online instant [...] How fake sites trick search engines by: Jordan Robertson San Fransisco – Even search engines can get suckered by Internet scams. With a little sleight of hand, con artists can dupe them into giving top billing to fraudulent websites that prey on consumers, making unwitting accomplices of companies such as Google, Yahoo and Microsoft. Online charlatans typically try to [...] Are you experiencing the following problems with your computer? * Computer becomes slower and slower over time? Don’t worry, Advanced Defrag can [...] A new version of Driver Checker 2.7.4 has been published recently. We would like you to notice the changes and new features of this version. 1. New look: The new software interface of Driver Checker looks more concise and easy-to-use. 2. Driver List Export: A brand new Driver List Export feature has added [...] |
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Snapshot of the International Space Station
 On March 13, 2008, the International Space Station passed across the field-of-view of Germany's remote sensing satellite, TerraSAR-X, at a distance of 195 kilometers, or 122 miles, and at a relative speed of 34,540 kilometers per hour, or more than 22,000 mph. In contrast to optical cameras, radar does not 'see' surfaces. Instead, it is much more aware of the edges and corners which bounce back the microwave signal it transmits. Smooth surfaces such as those on the station's solar generators or the radiator panels used to dissipate excess heat, unless directly facing the radar antenna, tend to deflect rather than reflect the radar beam, causing these features to appear on the radar image as dark areas. The radar image of the station therefore looks like a dense collection of bright spots from which the outlines of the space station can be clearly identified. The central element on the station, to which all the modules are docked, has a grid structure that presents a multiplicity of reflecting surfaces to the radar beam, making it readily identifiable. This image has a resolution of about one meter (about 39 inches). In other words, objects can be depicted as discrete units--that is, shown separately--provided that they are at least one meter apart. If they are closer together than that, they tend to merge into a single block on a radar image. Since this image was taken, the station has expanded and is more than 90 percent complete, including a full complement of solar arrays. Image Credit: DLR Read More |
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