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ultrathin-organic-solar-cell-is-efficient-and-durable

Ultrathin organic solar cell is efficient and durable

Scientists from the RIKEN, in collaboration with international partners, have succeeded in creating an ultrathin organic solar cell that is both highly efficient and durable. Using a simple post-annealing process, they created a flexible organic cell that degrades by less than 5 percent over 3,000 hours in atmospheric conditions and that simultaneously has an energy […]

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the-economic-cost-of-female-genital-mutilation

The economic cost of female genital mutilation

An interactive data tool launched by WHO reveals for the first time the current and future financial cost of health care for women living with conditions caused by female genital mutilation (FGM). The total costs amount to USD 1.4 billion annually. The FGM Cost Calculator is being launched on this year’s International Day of Zero Tolerance

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Rare American Coins and Gobrecht Designed Silver Dollars

[ad_1] Congress suspended the production of silver dollars in 1804 and finally lifted it in 1831. No silver dollars were struck between 1804 and 1834, except when they were used as diplomatic presentation sets. In 1835 interest was growing to reinstate silver dollars as regular issue coins. Christian Gobrecht was invited to present designs of

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