Search Results for: Computer

Cosmology

How Many Informational Bits Are In The Universe If It is A Gaint Computer Simulation? (Cosmology)

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Using Shannon’s equations, Melvin M. Vopson calculated that a proton or neutron should contain the equivalent of 1.509 bits of encoded information. He then derived an estimate for the total number of particles in the observable universe — around 1080, which accords with previous estimates — to determine the total information content of the cosmos. … Continue reading How Many Informational Bits Are In The Universe If It is A Gaint Computer Simulation? (Cosmology) →

Cosmology

Jet From Giant Galaxy M87: Computer Modelling Explains Black Hole Observations (Cosmology)

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The black hole of the giant galaxy M87 shoots out an enormous jet of particles. A theoretical model of this jet has now been developed that fits astronomical observations very well. The galaxy Messier 87 (M87) is located 55 million light years away from Earth in the Virgo constellation. It is a giant galaxy with … Continue reading Jet From Giant Galaxy M87: Computer Modelling Explains Black Hole Observations (Cosmology) →

Computer Science

A New Method To Protect WebAssembly Against Spectre Attacks (Computer Science)

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Computer scientists have developed a new compiler framework, called Swivel, to protect WebAssembly, or Warm, against Spectre attacks—the class of execution attacks, which exploit the way processors predict the computations that need to happen next. The team will present its research at the USENIX Security Symposium taking place Aug. 11 to 13, 2021.  Wasm is … Continue reading A New Method To Protect WebAssembly Against Spectre Attacks (Computer Science) →

Quantum Mechanics

Emergent Magnetic Monopoles Isolated Using Quantum-annealing Computer (Quantum)

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Project offers new step toward study of emergence, ‘materials by design,’ and future nanomagnets Using a D-Wave quantum-annealing computer as a testbed, scientists at Los Alamos National Laboratory have shown that it is possible to isolate so-called emergent magnetic monopoles, a class of quasiparticles, creating a new approach to developing “materials by design.” “We wanted to study … Continue reading Emergent Magnetic Monopoles Isolated Using Quantum-annealing Computer (Quantum) →

Medicine

Computerised Image Analysis Identifies New Subtype of Debilitating Lung Disease (Medicine)

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Scientists at UCL have used computer-based imaging analysis to identify new patterns of lung damage in patients with Idiopathic pulmonary fibrosis (IPF), providing the first evidence of a previously unknown and life-limiting lung disease subtype. IPF is a condition where scar tissue or fibrosis builds up in the lungs, making them thick and hard. It … Continue reading Computerised Image Analysis Identifies New Subtype of Debilitating Lung Disease (Medicine) →

Material science

Novel Heat-management Material Keeps Computers Running Cool (Material Science)

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UCLA engineers have demonstrated successful integration of a novel semiconductor material into high-power computer chips to reduce heat on processors and improve their performance. The advance greatly increases energy efficiency in computers and enables heat removal beyond the best thermal-management devices currently available. The research was led by Yongjie Hu, an associate professor of mechanical … Continue reading Novel Heat-management Material Keeps Computers Running Cool (Material Science) →

Neuroscience

A Novel Method of Generating Sensation Using a Brain Computer Interface (Neuroscience)

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Study in a Sentence: With a mini-electrocorticography grid implanted in patients’ brains, researchers mapped the area of the brain that corresponds to sensation in the hand and demonstrated the utility of a novel sensory brain computer interface (BCI) in humans. Healthy for Humans: Restoring loss of limb function, including sensation, is an important challenge for … Continue reading A Novel Method of Generating Sensation Using a Brain Computer Interface (Neuroscience) →

Neuroscience

Brain-Computer Interface Turns Mental Handwriting Into Text (Neuroscience)

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Study in a Sentence: Using an implanted sensor to record the brain signals associated with handwriting, scientists have developed a brain-computer interface (BCI) designed to restore the ability to communicate in real-time in people with spinal cord injuries and neurological disorders such as amyotrophic lateral sclerosis (ALS). Healthy for Humans: Locked-in syndrome, commonly caused by a spinal … Continue reading Brain-Computer Interface Turns Mental Handwriting Into Text (Neuroscience) →

Computer Science, Maths

Julia Programming Language Tackles Differential Equation Challenges (Computer Science / Maths)

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Casting models of a complex system in terms of differential equations on networks allows researchers to use its underlying structure for efficient simulations Emerging open-source programming language Julia is designed to be fast and easy to use. Since it is particularly suited for numerical applications, such as differential equations, scientists in Germany are using it … Continue reading Julia Programming Language Tackles Differential Equation Challenges (Computer Science / Maths) →