Computing
-
Quantum PhysicsCommercial quantum computer fails to impress in new test
Fifteen million dollar D-Wave machine runs no faster than traditional computer in head-to-head challenge.
By Andrew Grant -
LifeGenetic mutation quenches quantum quirk in algae
Studying algae that can and cannot use quantum coherence to harvest light could lead to better organic solar cells and quantum-based electronic devices.
-
TechSelf-driving cars are not a thing of the past
Engineers have not given up on self-driving cars. The focus has shifted from a mechanical approach to using batteries and GPS.
-
ComputingDiffusion may keep big knots out of DNA
A new computer simulation shows the way two knots on a strand of DNA could pass through each other without adding any additional snarls.
-
Quantum PhysicsMajor step taken toward error-free computing
Physicists have achieved nearly perfect control over a bit of quantum information, bringing them a step closer to error-free computation.
-
ComputingApp could cut jet lag short
A new app calculates lighting schedules to help travelers adjust quickly to new time zones.
By Meghan Rosen -
ComputingA tale of touching tubes
Mathematicians solve the challenge of putting seven cylinders in contact without using their ends.
-
ComputingMaterials’ light tricks may soon extend to doing math
A simulation paves the way toward metamaterials that can perform ultrafast complex mathematical operations using light waves.
-
Health & MedicineForecasting system predicts peaks in flu outbreaks
A real-time forecasting system has accurately predicted the peak flu cases up to nine weeks before the outbreak.
-
ComputingFastest supercomputers
The new list of the world’s fastest computers, now in its 20th year, has China’s Tianhe-2 on top with a processing speed of 33.9 petaflops — or quadrillions of calculations per second.
-
PhysicsSingle atoms hold on to information
Minutes-long data storage by individual atoms beats previous record of tiny fraction of a second.
By Andrew Grant -
TechMemory upgrade
The demands of modern computing call for a seismic shift in data storage and retrieval.
By Andrew Grant