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b'It\\u2019s elementary, Watson.\\xa0Things are in flux \\u2013 from the elements in the air you breathe to party balloons.\\xa0\\xa0We investigate the massive, historic loss of nitrogen from the atmosphere and meet the culprits behind a modern-day helium shortage.\\xa0\\nBut it\\u2019s not all a disappearing act: be thankful that oxygen showed up in our atmosphere a few billion years ago.\\xa0Meanwhile, atom smashers have recently produced some new elements.\\xa0Their appearance was brief, but long enough to fill out the periodic table.\\nAnd perhaps the tastiest use of an element \\u2013 one that gives Seth a chilly reception.\\nGuests:\\xa0\\n\\n\\nInna Vishik \\u2013 Postdoctoral fellow in physics at MIT\\n\\n\\nRoland Pease \\u2013 Science reporter in the U.K.\\xa0\\n\\n\\nMark Stoyer \\u2013 Nuclear chemist, Lawrence Livermore National Laboratory\\n\\n\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'