Ripped from the pages
of a sci-fi novel, physicists have crafted a wormhole that tunnels a magnetic
field through space.
"This
device can transmit the magnetic field from one point in space to another
point, through a path that is magnetically invisible," said study
co-author Jordi Prat-Camps, a doctoral candidate in physics at the Autonomous
University of Barcelona in Spain. "From a magnetic point of view, this
device acts like a wormhole, as if the magnetic field was transferred through
an extra special dimension."
The
idea of a wormhole comes from Albert Einstein's theories. In 1935, Einstein and
colleague Nathan Rosen realized that the general theory of relativity allowed
for the existence of bridges that could link two different points in
space-time. Theoretically these Einstein-Rosen bridges, or wormholes, could allow
something to tunnel instantly between great distances (though the tunnels in
this theory are extremely tiny, so ordinarily wouldn't fit a space traveler).
So far, no one has found evidence that space-time wormholes actually exist. [Science Fact or
Fiction? The Plausibility of 10 Sci-Fi Concepts]
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