Physicists have confirmed the existence of pear-shaped nuclei,
which challenges the fundamental theories of physics that explain our
Universe.
"We've found these nuclei literally point towards a direction
in space.
This relates to a direction in time, providing there's a
well-defined direction in time and we will always travel from past to
present," Marcus Scheck from the University of the West of Scotland told Kenneth MacDonald at BBC News.
Until recently, it was generally accepted that nuclei of atoms could
only be one of three shapes: spherical, discus, or rugby ball.
The first
discovery of a pear-shaped nucleus was back in 2013, when physicists at
CERN discovered isotope Radium-224.
Now, that find has been confirmed by a second study,
which shows that the nucleus of the isotope Barium-144 is also
asymmetrical and pear-shaped. In regard to time travel, Scheck says that
this uneven distribution of mass and charge caused Barium-144's nucleus
to "point" in a certain direction in spacetime, and this bias could
explain why time seems to only want to go from past to present, and not
backwards, even if the laws of physics don't care which way it goes.
Ya but what about...
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