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AstroMcGill talk sheds light on the Big Bang

The universe is comprised of billions of galaxies—encompassing all of space, all of time, and all of its contents. It all started with a Big Bang 13.8 billion years ago. On Nov. 16,  particle physicist and cosmologist Oscar Hernández spoke about the Big Bang at AstroMcGill’s event Where, When & Will It Ever End: a… Keep Reading

physics

Sordid tales of quantum physics

More haunting than any ghoul is the occurrence of entanglement, or nonlocality. Entanglement occurs when particles, also known as various small ‘fields,’ are linked. These fields include electrons, photons, atoms, and even molecules, which share a common history that intertwines their futures. Measuring or changing the state of an entangled particle will modify the state… Keep Reading

physics

Gravitational waves when neutron stars collide

A global effort, with contributions by McGill astrophysicists including Assistant Professor of Physics in the McGill Space Institute (MSI), Daryl Haggard, and postdoctoral researcher Melania Nynka, has detected gravitational waves coming from the collision of two neutron stars in orbit. Among the many implications of this discovery, the origin of certain elements—such as gold—emerged.  Gravitational… Keep Reading

physics

Research Briefs—Oct. 28, 2014

Physicists transport marbles with optical tractor beam The tractor beam—a long-distance invisible attraction beam—is a legendary staple in science fiction. In real life, moving objects using only light seems absurd, if not impossible. However, in a paper published in Nature Photonics, a team of Australian and American physicists successfully transferred glass marble ten centimetres using… Keep Reading

physics

Research Briefs — Sept. 30

Face the truth: Mites found on human skin Microscopic eight-legged creatures make their homes in the faces of all people, a study recently published in PLOS ONE has shown. The Demodex mites are a group of hair follicle and sweat gland-dwelling species. Two different species of these mites reside on the face. The first, Demodex… Keep Reading

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