Harvard University

Measuring the mass of 'massless' electrons

(Phys.org)—Individual electrons in graphene are massless, but when they move together, it's a different story. Graphene, a one-atom-thick carbon sheet, has taken the world of physics by storm—in part, ...

Jun 23, 2014
4.8 / 5 (13) 3

Adjusting Earth's thermostat, with caution

A vast majority of scientists believe that the Earth is warming at an unprecedented rate and that human activity is almost certainly the dominant cause. But on the topics of response and mitigation, there ...

Nov 17, 2014
3.2 / 5 (19) 25

New evidence on Neanderthal mixing

New research on a 45,000-year-old Siberian thighbone has narrowed the window of time when humans and Neanderthals interbred to between 50,000 and 60,000 years ago, and has shown that modern humans reached ...

Oct 23, 2014
4.8 / 5 (12) 19