32 NEW PLANETS IN OTHER SOLAR SYSTEMS ARE DISCOVERED – REVEAL HOW PLANETS ARE FORMED – LIFE APART FROM US?

Posted by admin | Security Issues | Friday 29 January 2010 4:51 pm
32 new Planets are discovered in 2009

The smallest is five times the size of the earth



This picture taken in January 2009 illustrate the eksoplanet HD80606b which is around 200 lightyears away from earth. European astronomers disclosed that they had discovered 32 new previously unkown eksoplanets orbiting other stars than our own sun. Photo: Scanpix/AFP PHOTO / NASA / Spitzer Space Telescope

HD 80606 b is a superjovian planet (Eccentric Jupiter) 190 light-years distant in the constellation of Ursa Major. The planet was discovered orbiting the star HD 80606 in April 2001 by a team led by Michel Mayor and Didier Queloz. Based on its mass, at 4 times that of Jupiter, it is a gas giant. Since the planet transits its star, its radius is determined to be at 73,560 km (slightly larger than planet Jupiter).

The planet has wild variations in its weather as it orbits its parent star. Computer models predict the planet heats up 555 °C (1,000 °F) in just a matter of hours triggering “shockwave storms” with winds that move faster than the speed of sound

European astronomers have up till now discovered 32 previously unknown plants orbiting other stars than our own sun. The number of eksoplanets is then up to over 400 at the moment.

The smalles of the newly discovered eksoplanets is around 5 times the size of the earth, while the largest is around 5 times larger than our solar system planet Jupiter which is the largest plant in our own solarsystem.

This was revealed at a statement given by the European Space Agency astronomers this Monday.

The astronomers stated that more than 40 percent of the stars looking like our own sun have planets with small masses.

The new observations have given the astronomers a large insight into the variety of planet systems. Nuno Santos, one of the project researchers stated that this helps us to understand how planets are formed- De nye observasjonene har gitt astronomene stor innsikt i planetsystemets mangfold.

The astonomers used HARPS, which is a special designed instrument at the European observatory in Chile to map the new eksoplanets.

This instrument gives the researchers the chance to calculate the size and mass of objects observed and discovered in the Universe.

HARPS WEB SITE 

HARPS is a spectrometer dedicated to the search for extrasolar planets by means of the technique of precise radial velocity measurement. HARPS is developped by a consortium headed by the Geneva Observatory. It is installed at the Coude room of the 3.6 meter telescope at La Silla, with an optical fiber link to the Cassegrain focus.



Desktop Applications Vs. Web Applications

Posted by admin | Security Issues | Saturday 16 January 2010 11:24 pm


Software application development began with desktop applications, which could be used on standalone machines only. However, with the advent of internet and online commerce, web application development gained importance. Word processors and media players can be considered to be typical desktop applications, while an online shopping cart on an ecommerce website can be considered as a web application.

By definition, a desktop application means any software that can be installed on a single computer (laptop or a desktop) and used to perform specific tasks. Some desktop applications can also be used by multiple users in a networked environment. Web application development, however, soon started replacing desktop applications for reasons of portability and better functions from usability point of view. Web application development is usually made on client-server architecture and use a web-browser as the client interface. This is one of the reasons why web applications are so widely getting popular. Though web applications offer a slight advantage over desktop applications, there is a very narrow chance of desktop applications becoming outdated. The primary reason for this could be the security issues and legalities associated with web based applications.

Following is a basic comparison on desktop and web based applications based on certain parameters:



Maintenance – web based applications need to be installed only once where as desktop applications are to be installed separately on each computer. Also updating the applications is cumbersome with desktop applications as it needs to be done on every single computer which is not the case with web applications.

Ease of use – desktop applications are confined to a physical location and hence have usability constraint. Web applications development on the other hand makes it convenient for the users to access the application from any location using the Internet.

Security – web applications are exposed to more security risks than desktop applications. You can have a total control over the standalone applications and protect it from various vulnerabilities. This may not be the case with web applications as they are open to a large number of users in the Internet community thus widening the threat.

Connectivity – web application development relies significantly on Internet connectivity and speed. Absence of Internet or its poor connectivity can cause performance issues with web applications. Desktop applications are standalone in nature and hence do not face any hindrances resulting from Internet connectivity. Connectivity also significantly affects the speed at which desktop and web applications operate.

Cost factor – web application development and its maintenance involve higher costs and mostly recurring in nature. Desktop applications are purchased one time and there are not continually occurring charges. However, in certain cases, maintenance fees may be charged.



Having considered the basics of desktop and web application development, the selection of a suitable type will depend on the business needs and factors discussed in the comparison given above.

How to Repair Win32 Errors

Posted by admin | Security Issues | Friday 8 January 2010 10:07 am


Computer malfunctions that require the user to repair Win32 errors will take a couple of different approaches depending on the true nature of the file involved.  Once the error’s true cause is determined, steps should be taken to repair Win32 errors in order to regain safe use of the computer.

Win32: Malware, Virus, or DLL File?

A Win32 error may be one of a few different options.  It is important to pay close attention to any error messages containing the “Win32″ description.  If a Win32 file is found on the PC in conjunction with computer errors, note the entire file name associated with the file.

A Win32 file may be a necessary (but missing or malfunctioning) component of the PC termed a “DLL file” (so named by the final three letters of the file name, *.dll).  Or it could be spyware or a virus with a plausible name to convince the user that it should indeed be left on the computer.

A virus scan and a spyware scan should determine quickly the nature of the Win32 file causing problems on the PC.  (Note: It may be necessary to run both a virus scan and a spyware scan to rule out this file as a security threat to the PC.)

Remedies for Win32

If the Win32 file is found to be a virus or spyware, it is important to get this security threat off the computer.  Up-to-date scanning and removal programs should be able to successfully remove the malicious software from the PC.

However, a persistent infection may require more advanced techniques.  Take the computer to a repair shop or search online for computer forums that can address the issue.

If the Win32 file is simply a missing or malfunctioning DLL file, this is less of security threat, but may still need prompt repair if the error is preventing the user from accessing certain programs.  The first way to address a missing or malfunctioning DLL file is to reverse any changes made to programs or settings in the recent past.  Begin with the most recent first, and continue back, checking each time to see if the Win32 error persists.

Advanced Repair

If the first step does not produce results or no changes have been made in the recent past, it may be necessary to reinstall the file or the program.  Only obtain a new DLL file from the software manufacturer, rather than a DLL directory site.  Finally, for persistent issues, learn how to use a trusted registry cleaner to repair Win32 errors.

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