Source: GMA News 
August 22, 2012
"A team of Filipino scientists and engineers has built what might be the most affordable equipment in the world to assess damaged coral reefs.
University of the Philippines physics professor Maricor Soriano said that the equipment, "Teardrop," is a better alternative to other reef assessment technologies on the market that can cost thousands of dollars, like high-tech remote video equipment.
Teardrop could be had for only $380 or P16,000. “Nobody has done this before on the cheap,” Soriano said."
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