1.媒体来源:yahoo
2.完整新闻标题:
Scientists blew up their own machine to break the record for most intense
magnetic field
3.完整新闻内文:
Scientists are always looking to push the limits of their own creations, but
most of the time that doesn’t mean utterly destroying some very fancy
machines. That’s just what a team of researchers from the University of
Tokyo was willing to break the world record for most powerful indoor magnetic
field ever generated.
The team, which published their resulted in a study in Review of Scientific
Instruments, used a technique known as electromagnetic flux-compression to
see how powerful of a magnetic field they could generate with their new
hardware. Not only did they break the record by a mile, they actually caused
a massive explosion in their own lab in the process. Success!
Electromagnetic flux-compression might sound like something straight out of
Back To The Future, but the magnetic field the researchers detected was
anything but fiction. The physicists wanted to really max out what their
generator was capable of, and were willing to break it to find out, but they
got even more than they expected.
Speaking with IEEE Spectrum, lead researcher Shojiro Takeyama explained that
his team was hoping to achieve a magnetic field that reached 700 Tesla (the
unit of measurement for gauging the strength of a magnetic field). At that
level, the generator would likely self destruct, but when pushed to its
limits the machine actually achieved a strength of 1,200 Tesla.
To put that in perspective, an MRI machine — which is the most intense
indoor magnetic field most people would ever encounter — comes in at just
three Tesla. Needless to say, the researchers’ machine didn’t survive the
test, but it did land them in the record books.
“Decades of work, dozens of iterations and a long line of researchers who
came before me all contributed towards our achievement,” Takeyama said in a
statement. “I felt humbled when I was personally congratulated by directors
of magnetic field research institutions around the world.”