The merger of two massive (about 30 solar masses) black holes has been detected in gravitational waves. This discovery validates recent predictions that massive binary black holes would constitute the first detection. Previous calculations, however, have not sampled the relevant binary-black-hole progenitors—massive, low-metallicity binary stars—with sufficient accuracy nor included sufficiently realistic physics to enable robust predictions to better than several orders of magnitude. Here...
Tag Archives: source
Oil sands operations as a large source of secondary organic aerosols
Worldwide heavy oil and bitumen deposits amount to 9 trillion barrels of oil distributed in over 280 basins around the world, with Canada home to oil sands deposits of 1.7 trillion barrels. The global development of this resource and the increase in oil production from oil sands has caused environmental concerns over the presence of toxic compounds in nearby ecosystems and acid deposition. The contribution...
Geek of the Week: Timothy Crosley is a champion of open source technology
When Timothy Crosley isn’t working on security solutions for DomainTools, he devotes his time to open source projects. He runs Simple Innovation, a software development business that builds apps on a contract...
Earth science: Another energy source for the geodynamo
Magnesium is not usually considered to be a constituent of Earth's core, but its presence there has now been proposed to explain an ongoing enigma — the identity of the energy sources that drive our planet's magnetic field. See Letter p.387
Nature 529 288 doi: 10.1038/529288a
Earth science: Another energy source for the geodynamo
Magnesium is not usually considered to be a constituent of Earth's core, but its presence there has now been proposed to explain an ongoing enigma — the identity of the energy sources that drive our planet's magnetic field. See Letter p.387
Nature 529 288 doi: 10.1038/529288a
Reuters: Apple will source OLED iPhone displays from Samsung and LG
Enlarge / Future iPhones could switch from LED LCDs to OLEDs. (credit: Andrew Cunningham)
According to a report from Reuters, Apple will be buying OLED display panels for future iPhones from both Samsung and LG. The companies are apparently "close to a final agreement," though the screens might not actually make it into a shipping...
AMD embraces open source to take on Nvidia’s GameWorks
AMD's position in the graphics market continues to be a tricky one. Although the company has important design wins in the console space—both the PlayStation 4 and Xbox One are built around AMD CPUs with integrated AMD GPUs—its position in the PC space is a little more precarious. Nvidia currently has the outright performance lead, and perhaps more problematically, many games are to a...