Testing a new technology, an AP photographer focuses on a hurdler’s eyes from an unusual angle

AP photographer Petr David Josek said being at the finish line gives you a chance to try some new angles specially when ...
pv magazine International

Optimum tilt angle for PV systems ranging from 0° to 90°

A Slovak research team has developed a mathematical model for determining the optimum tilt angle of a solar system ranging from 0° to 90°. Their framework was tested on an experimental setup in ...
Modern Engineering Marvels on MSN

Stealth vs. Thrust Vectoring: J-35 and Su-35 Summed Up in 4 Words

Can pure agility outperform invisibility? In the dynamic chessboard of air combat, Russia’s Su-35 and China’s J-35 embody two diametrically opposed approaches to fighter design one based on ...
Wall Street Journal

Hang Seng Index HSI

Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International stock ...