Worlds Largest Radio Telescope under Construction in SW China

The building of the 500meter aperture Spherical Radio Telescope (FAST) is progressing well in southwest China s Guizhou Province with reflector units being installed. FAST will effectively help mankind better probe the universe after completion in 2016, according to scientists. The installation of 4, 450 reflector units underway is a complicated process which will affect the accuracy of the telescope, whose dish is the size of 30 football grounds. Each panel is an equilateral triangle with a side length