WEST PALM BEACH: Pratt & Whitney Rocketdyne, a United Technologies Corp. company, is a step closer to flight testing the world's first hypersonic hydrocarbon-fueled and -cooled scramjet engine. The X-51A Scramjet Engine Demonstrator-WaveRider (SED-WR) successfully demonstrated key flight clearance objectives

Over coal problems

According to analysts of Unicredit Aton, the "bubble" in the real estate market of Russia will burst. First of all within next half year prices on the real estate in Russia will fall down at least by 10%. The reason

A quick check of the charts shows explosive upside potential in the financial sector.

U.S. Air Force analyses show the F-35 Lightning II is at least 400 percent more effective in air-to-air combat capability than the best fighters currently available in the international market.The Air Force's standard air-to-air engagement analysis model, also used by