Biology

David Schindler came from a farming community in northern Minnesota, but despite his small town roots, the academically and athletically gifted student won a prestigious Rhodes Scholarship to Oxford University in England. Twice a day, as was the tradition at Oxford, the young Schindler met for coffee or tea with a gaggle of fellow graduate students and renowned scientists, including Nobel...

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Q: What type of salt melts ice the quickest?

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In the news

Pushing the limits of chemistry with iridium

October 22, 2014

Canadian scientists working with the element iridium in Gary Schrobilgen's lab at McMaster university set a new record for the highest formal oxidation state in the periodic table of the elements. Oxidation state describes the number of electrons an atom loses or gains when it joins with other atoms in chemical compounds; the higher the oxidation state, the more electrons, critical in many applications, especially batteries. Previously the highest number was 8. Working with Chinese and German colleagues, the scientists created a gaseous form of iridium tetroxide reaching an oxidation state of 9. More at the Science Media Centre...

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