Dark matter could meet its nemesis on Earth - space - 01 March 2010 - New Scientist

via newscientist.com

The key is to cancel out the acceleration of Earth's rotation, its orbit round the sun, and the orbit of the sun round the galactic centre. The basic idea was first proposed in 2007, when Alex Ignatiev calculated that the accelerations all cancel out for a millisecond at two particular points on Earth's surface, twice a year. That makes the experiment possible in theory, but not feasible.

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