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Category: Electronics Engineering

Astronomers find plane of dwarf satellites orbiting Centaurus A — ScienceDaily

An international team of astronomers has determined that Centaurus A, a massive elliptical galaxy 13 million light-years from Earth, is accompanied by a number of dwarf satellite galaxies orbiting the main body in a narrow disk. In a paper published today in Science, the researchers note that this is the first time such a galactic arrangement has been observed outside the Local Group, home to the Milky Way. “The significance of this finding is that it calls into question the…

New radiation detectors developed at Sandia used for New START inspections

Sandia National Laboratories designed new radiation detection equipment for New START Treaty monitoring. This new equipment detects neutron levels to confirm that objects are non-nuclear, consistent with the provisions of the treaty. Credit: Randy Montoya Sandia National Laboratories designed, tested and delivered new radiation detection equipment for monitoring under the New START Treaty. Defense Threat Reduction Agency inspectors recently used this equipment for the first time in Russia for a New START inspection. New START, or the New Strategic Arms…

Efficient use of resources in manufacture of metal components

Structurally optimized wheel bearing for an ultralightweight vehicle designed for Additive Manufacturing – made in the 3D-Printing Lab for Metals and Structural Materials at Fraunhofer EMI. Credit: Fraunhofer EMI Additive Manufacturing has established itself in many industrial sectors as a method for making plastic parts. The 3-D printing of metals is on the road to becoming a similar success story. In the newly opened 3-D-Printing Lab for Metals and Structural Materials at the Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI,…

Fast JSON API serialization with Ruby on Rails – Netflix TechBlog – Medium

by Shishir Kakaraddi, Srinivas Raghunathan, Adam Gross and Ryan Johnston We are pleased to announce the open source release of the Fast JSON API gem geared towards Ruby on Rails applications. Introduction Fast JSONAPI is aimed at providing all the major functionality that Active Model Serializer (AMS) provides, along with an emphasis on speed and performance by meeting a benchmark requirement of being 25 times faster than AMS. The gem also enforces performance testing as a discipline. AMS is a…

Red-tailed Hawk » Curious Cat Science and Engineering Blog

Backyard Wildlife: Red-tailed Hawk Posted on January 31, 2018  Comments (0) I see red-tailed hawks in my backyard occasionally. This one has a squirrel on a high tree branch in my backyard. The video shows it fly away. When I hear a murder of crows squawking loudly I often can spot a red-tailed hawk (or perhaps some other hawks) near my yard. Related: Backyard Wildlife: Sharpshinned Hawk – Red-shouldered Hawk – Backyard Wildlife: Fox – Backyard Wildlife: Blue Jay Source…

Sharing Code Between Web & Electron Apps

🎂 Path 1: The Shortcut Just load your remote web app into Electron, like a browser Photo by Dave Catchpole (CC BY 2.0) You scour the perimeter of the labyrinth, searching for the nearest entrance. As your eyes travel along the tiled, immaculate path, you notice that it continues, like a hallway, straight ahead without twist or turn. You spy an ornate, dazzling goblet, arrayed in jewels and gold, sitting atop a pedestal glinting off in the distance at the very end of…

Steps to Buy Ethereum Cryptocurrency in India

Ethereum is a project that combines a digital currency, the Ether, like Bitcoin, but takes advantage of the possibilities offered by blockchain, an unalterable record that since the birth of Ethereum has been aimed at the creation of smart contracts. Smart contracts, as a rule, include a financial transaction, act transparently for both parties and their operation is very similar to the programming codes If they do that. All this information is reflected in the blockchain, an unalterable record where…

Improving Android video on News Feed with Litho | Engineering Blog | Facebook Code

As video consumption on mobile devices grows rapidly, Facebook mobile engineers are faced with new challenges for rendering content efficiently. Videos demand more resources than simpler UI elements like text and photos. They use decoders that keep the CPU busy; they allocate large amounts of memory to set up; and they use more network bandwidth to download video data from the servers. Playing videos inside a scrollable container like News Feed is especially challenging – pressure on the device’s resources…