Communications of the ACM
Why the Simplex Method, at Age 75, is Still the Go-To Algorithm
Daniel A. Spielman and colleague Shang-hua Teng solved the mystery of the Simplex Method using a technique called smoothed analysis… From ACM NewsAn edited collection of advanced computing news from Communications of the ACM, ACM TechNews, other ACM resources, and news sites around the Web.
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Clouds Get High on Climate Change
Clouds are moving up, up and away. An analysis of satellite data has found that, since the early 1980s, clouds have shifted towards Earth's poles and cloud tops...
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Expansion of Early niverse Modelled in nprecedented Detail
For the first time, cosmologists have used the full power of Albert Einstein's general theory of relativity to perform detailed calculations of the Universe's evolution...
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First Crispr Clinical Trial Gets Green Light from S Panel
CRISPR, the genome-editing technology that has taken biomedical science by storm, is finally nearing human trials.
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Quantum Computer Makes First High-Energy Physics Simulation
Physicists have performed the first full simulation of a high-energy physics experiment—the creation of pairs of particles and their antiparticles—on a quantum...
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Ligo Detects Whispers of Another Black-Hole Merger
Just before 4 a.m. on 26 December, B. S. Sathyaprakash woke up to some good news: gravitational waves had been detected for only the second time in history.
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A Simpler Twist of Fate
Until the day it dies, a cell that has become a skin cell remains a skin cell—or so scientists used to think.
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Google Moves Closer to a niversal Quantum Computer
An experimental prototype of a universal quantum computer can solve a wide range of problems and has the potential to be scaled up to larger systems, researchers...
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Google Moves Closer to a niversal Quantum Computer
For 30 years, researchers have pursued the universal quantum computer, a device that could solve any computational problem, with varying degrees of success.
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CRISPR Gene-Editing System nleashed on RNA
Researchers who discovered a molecular "scissors" for snipping genes have now developed a similar approach for targeting and cutting RNA.
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Plan to Synthesize Human Genome Elicits Mixed Response
Proposals for a large public-private initiative to synthesize an entire human genome from scratch—an effort that could take a decade and require billions of dollars...
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Two-Hundred-Terabyte Maths Proof Is Largest Ever
Three computer scientists have announced the largest-ever mathematics proof: a file that comes in at a whopping 200 terabytes1, roughly equivalent to all the digitized...
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Illuminating Life's Building Blocks
Biophysicist Joerg Bewersdorf says that 2006 was fluorescence microscopy's annus mirabilis—a 'miraculous year' as momentous in its own way as 1905, when Albert...
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1,500 Scientists Lift the Lid on Reproducibility
More than 70% of researchers have tried and failed to reproduce another scientist's experiments, and more than half have failed to reproduce their own experiments...
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Light-Controlled Genes and Neurons Poised For Clinical Trials
Every time something poked its foot, the mouse jumped in pain.
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Computer Gleans Chemical Insight from Lab Notebook Failures
Did your experiment fail? Don't bin the data just yet—they could be useful.
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The Struggle with Image Glut
As the fruit-fly larva wriggles forwards in the video, a crackle of neural activity shoots up its half-millimetre-long body.
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Software Error Doomed Japanese Hitomi Spacecraft
Japan's flagship astronomical satellite Hitomi, which launched successfully on 17 February but tumbled out of control five weeks later, may have been doomed by...
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Gene-Editing Hack Yields Pinpoint Precision
A painstaking re-engineering of the CRISPR gene-editing system has given researchers the ability to alter individual DNA letters efficiently in a given gene.
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Zoo of Theories Showcased in Publications on Lhc Anomaly
Hints of a new subatomic particle at the world’s most powerful atom smasher have inspired theoretical physicists to write more than 300 papers in the past four...
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