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Space-time variation of the electron-to-proton mass ratio in a Weyl model
Space-time variation the electron-to-proton mass ratio
2011/1/13
We consider a phenomenological model where the effective fermion masses depend on the local value of Weyl tensor as a possible explanation for the recent data indicating a space-time variation of the...
Space–time invisibility cloak could 'edit history'（图）
Space–time invisibility cloak 'edit history'
2010/11/30
Physicists in the UK have proposed a "space–time" invisibility cloak that, if built, could be used to prevent signal interference or give the illusion of a Star Trek teleportation device. The idea com...
Fermi Telescope Caps its First Year with a Glimpse of Space-Time
Fermi Telescope First Year Space-Time
2009/11/4
During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity. It captured more than one thousand discrete sources of...