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Milestones in Science & Engineering Episode: 47 Quantum mechanics, a theory created by physicists to explain phenomena of a nuclear nature, was introduced into chemistry by Linus Pauling. With this theoretical tool at his disposal he was able to explain chemical bonding in physical terms.
Cable Highlights The MHP panel talks about the issues facing our water infrastructure, from water pollution to water droughts and shortages.
Cable Highlights Alex Witt talks to NBC News Olympic Security Analyst Andrew Weiss about the current state of affairs at the Sochi Olympics and Russia.