Web 2.0 has taken on buzzword status. It's now shorthand for everything that is new, cutting-edge, and gaining momentum online. Web 2.0 can describe particular Web sites; cultural trends like social networking, blogging, or podcasting; or the underlying technology that makes today's coolest Web applications possible. Many Web 2.0 innovations...

A programmable logic controllers (PLC) is a real-time system optimized for use in severe conditions such as high/low temperatures or an environment with excessive electrical noise. This control technology is designed to have multiple interfaces (I/Os) to connect and control multiple mechatronic devices such as sensors and actuators.
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In this second edition of Future Spacecraft Propulsion Systems, the authors demonstrate the need to break free from the old established concepts of expendable rockets, using chemical propulsion, and to develop new breeds of launch vehicle capable of both launching payloads into orbit at a dramatically reduced cost and for sustained operations in...

• Travel to Eastern Europe is booming-international arrivals to Eastern Europe have increased by an average of 3.9 percent each year since 2004
• Destinations covered in this guide are Bulgaria, the Czech Republic, Croatia, Hungary, Poland, Romania, Moscow & St. Petersburg, Slovakia, Slovenia,and Kaliningrad...