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A storage disk made from Tungsten can stand natural calamities, thereby
retaining data for over a million years. Here’s taking a look.
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Innovation knows no bounds. The world of digital storage is changing and
evolving with every passing day. The problem with magnetic disk storage
system that was introduced by IBM in 1956 is that it cannot retain data
for more than a couple of years. Many storage devices can keep data for
slightly over 10 years.
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As stated on crazyengineers.com, Jeroen De Vries from University of
Twente (Netherlands) has come up with a solution for solving this
problem. De Vries along with co-researchers have created a storage disk
that can keep data for nothing less than a million years.
The
team uses tungsten that has a high melting temperature (about 3422
degree Celsius) with a lower thermal expansion coefficient with a
protective layer that is made from Silicon Nitride (Si3N4). The
recording of data by the team was done in the form of QR codes having
100nm wide lines on the media.
It was then exposed to different
temperatures for viewing how the medium retained the data. The team also
conducted accelerated aging tests and discovered that the medium could
store data for a long time, for over a million years without any
problems. De Vries and his team feel confident that they can construct
much better and stronger storage media that can withstand house fires,
floods or even a meteor strike. |
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