Intel and the Department of Energy Are Building America's First Exascale Supercomputer, a Computer Capable of a Quintillion
Calculations Per Second
Intel said on Monday that it would build the US's most powerful supercomputer, so fast that it could process
1 quintillion - 1 billion times 1 billion, or 1,000,000,000,000,000,000 - calculations per second.
put that in perspective: If every person on Earth did one calculation (say, a math problem involving algebra) per second,
it would take everyone over four years to do all the calculations Aurora could do in one second.
Intel and the US Department of Energy said Aurora would be the US's first exascale supercomputer, with a performance of 1 exaflop,
when it's completed in 2021.
That kind of number-crunching brawn, the computer's creators hope, will
enable great leaps in everything from cancer research to renewable-energy development.
to be developed by Intel and its subcontractor Cray at the Energy Department's Argonne National Laboratory near Chicago, would far surpass the abilities
of supercomputers today. It's likely to be the most powerful supercomputer in not just the US but the world, though Rick Stevens, an associate laboratory director at Argonne, said that other countries might also be working on exascale supercomputers.
From "Business Insider"
Harvard University Uncovers DNA Switch That Controls Genes for Whole-Body Regeneration
Humans may one day have the ability to regrow limbs after scientists at Harvard University uncovered the
DNA switch that controls genes for whole-body regeneration.
Some animals can achieve extraordinary
feats of repair, such as salamanders which grow back legs, or geckos which can shed their tails to escape predators and then
form new ones in just two months.
Planarian worms, jellyfish, and sea anemones go even further, actually regenerating
their entire bodies after being cut in half.
Now scientists have discovered that that in worms, a section
of non-coding or ‘junk' DNA controls the activation of a ‘master control gene' called early growth response (EGR)
which acts like a power switch, turning regeneration on or off.
"We were able to decrease the activity of this gene and we found that if you don't
have EGR, nothing happens," said Dr Mansi Srivastava, Assistant Professor of Organismic and Evolutionary Biology at Harvard
From "Yahoo/The Telegraph"