Physics Week in Review: February 16, 2013

We’re re-introducing a weekly feature, offering links to the most interesting physics-ish stories around the Web. (Follow us on Twitter @JenLucPiquant to get the links as they appear.) Earlier this month, everyone’s favorite astrophysicist, Neil de Grasse Tyson, speculated on Twitter that Thor’s hammer, Mjolnir, would weigh as much as a herd of 300 billion [...]