Categoria: article
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Professor Doutor Ângelo da Cunha Pinto (In Memoriam)
O Prof. Ângelo da Cunha Pinto nasceu em Marco de Canavezes a 2 de dezembro de 1948. Dois anos mais tarde seus pais emigraram para o Brasil. E foi a partir de então que toda a sua vida começou a ter lugar neste país. Faleceu em Niterói, Rio de Janeiro, a 7 de outubro de…
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Periodic table’s seventh row finally filled as four new elements are added
Discovery of four super-heavy chemical elements by scientists in Russia, America and Japan has been verified by experts and formally added to table Four new elements have been added to the periodic table, finally completing the table's seventh row and rendering science textbooks around the world instantly out of date. The elements, discovered by scientists…
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Food Wrapper chemicals banned
Health: FDA prohibits three perfluorinated substances in packaging. The substances of concern: certaindiethanolaminesalts of mono- and bis-(1H, 1H, 2H, 2H- perfluoroalkyl) phosphates; 4,4-bis-[(γ-ω-perfluoro-C8–20- alkyl)thio] derivatives, and certainperfluoroalkyl- substituted phosphate ester acids. Leia mais…