A large galaxy cluster — together with a dense halo of dark matter — formed at the centre of the simulated Universe. Courtesy Illustris.
A new virtual depiction of the cosmos developed by scientists in the US, Germany and England shows detail never before achieved in a computer-generated simulation. The numerical-based model Illustris covers the universe's 13 billion-year evolution, starting 12 million years after the Big Bang, or creation. It accurately depicts various galaxies' distribution and makeup.
Mark Vogelsberger, a physicist at the Massachusetts Institute of Technology in Cambridge, and his colleagues created a model of the Universe that follows the evolution of both visible and dark matter starting just 12 million years after the Big Bang (see video). While previous models have either been small and detailed or large and coarse, this simulation covers a region of space big enough to be representative of the whole Universe — a cube 106.5 megaparsecs (350 million light years) across — but is detailed enough to resolve small-scale structures, such as individual galaxies. Unlike previous simulations, it produces a mixture of galaxy shapes that fit observations well. Its also accurately recreates the large-scale distribution of galaxy clusters and neutral gas in the Universe, as well as the hydrogen and heavy element content of galaxies.
Vogelsberger says that the simulation's success is down to its improved algorithms, and the fact that its calculations include a rich variety of physics, such as the formation of supermassive black holes and their effect on their environments. The model, called Illustris, requires a huge amount of computing power: running it on even a state-of-the-art desktop computer would take almost 2,000 years, he adds. Even run across more than 8,000 processors, the simulation still took several months.
I asked Amy Parness, the co-founder of Sparkle Labs, maker of fantastic educational electronics kits, to write a Medium post about gender and the business of being a maker business person. Her terrific essay calls out the problems with “pink girly engineering kits.” From Medium:
Zero UI is the new term for “invisible interfaces”—what happens in the future when all the clicking and tapping and typing is history: “If you look at the history of computing, starting with the jacquard loom in 1801, humans have always had to interact with machines in a really abstract, complex way.” [Fast Company]
It’s time for a power upgrade — throw out that tired-out power strip and swap in this family-size USB charger, packed with 6 high-speed ports. With a built-in control chip, Kinkoo optimizes each port to ensure the fastest charging possible for all your devices. The Kinkoo is made from high-grade and durable materials so you […]
Watching Netflix, Hulu or other streaming services can unfortunately be difficult while traveling outside the US. Rather than bypass these restrictions with the help of a complex and slow VPN, choose a faster and simpler solution with Getflix. Instead of rerouting all your Internet traffic through a different server, this handy service only routes the […]
Shake, stir, and muddle your way to delicious homemade cocktails with this must-have bar set. Expect only the finest quality tools from MakersKit — enabling you to unleash your inner mixologist.Top 12 Favorite Things of 2014, Sunset MagazineQuart-size vintage-style Mason jar shakerRetro double jigger for accurate measurementsStrainer & spouts for a mixologist-style smooth pourHardwood muddler […]