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By Maciej Onoszko WARSAW (Reuters) - Drilling at Poland's first shale gas exploration well using the controversial technique known as fracking has not harmed the environment, according to a government study published on Friday. Hydraulic cracking, or fracking, performed at a site in northern Poland operated by 3Legs Resources did not pollute groundwater or the atmosphere, said the study by the Polish Geological Institute. Fracking involves injecting water mixed with sand and chemicals into shale formations at high pressures to extract gas, a technique some fear pollutes underground aquifers and harms the environment

The development of periodic structures in embryos giving rise to the formation of, e.g., spine segments, is controlled not by genes but by simple physical and chemical phenomena.

This and more important news from your Fast Company editors, with updates all day. Google Buys A Thousand IBM Patents .

John Warrillow explains how professionals-such as architects, accountants, doctors and dentists-can grow their business beyond themselves. Dear John: I'm a criminal defense lawyer. As much as I would like to, I don't see how I could apply the Built To Sell philosophy to my practice

Tuesday, July 05 Long before Comic Sans mimicked comic-book writing, Gutenberg aped the lettering of handwritten manuscripts with his printing press.