Inspired by the material that makes up oyster and abalone shells, engineers at Princeton have created a new cement composite that is 17 times more crack-resistant than standard cement and 19 times more able to stretch and .
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Narges Mohammadi, an Iranian activist has long advocated against the most sensitive issues in the Islamic Republic of Iran, including the death penalty and imposition on women to wear compulsory.
Iranian campaigner Narges Mohammadi has for decades campaigned on the most sensitive issues in the Islamic republic, opposing pillars of the clerical system including capital punishment and the obligatory hijab, and defiantly refusing to give up her campaigning even behind bars.
Iranian campaigner Narges Mohammadi has for decades campaigned on the most sensitive issues in the Islamic republic, opposing pillars of the clerical system including capital punishment and the obligatory hijab, and defiantly refusing to give up her campaigning even behind bars.First arrested 22 years ago, Mohammadi, 51, has spent much of the past two decades in and out of jail over her unstinting campaigning for human rights in Iran.