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Category: Electronics Engineering

(Binary) Searching for your affordable home – Wealthfront Engineering Blog

It’s an exciting time to be on the Path team. Two months ago, we released some new features for Path, and just two weeks ago, we added home planning. At a high level, our home planning feature aims to answer three questions: What can I afford? How does a home affect my overall finances? Where can I afford to buy? What can I afford? This is a deceptively simple question that often lacks a clear answer. If you have a…

Engineering Ethics Blog: The Latest Amtrak Crash: A Deadly Combination

Many accidents in complex systems happen when two or more failures align like tumbler pins in a lock, opening the way to tragedy.  That is apparently what happened around 2:45 AM on Sunday, Feb. 4, outside the central South Carolina town of Cayce.  Here’s what led up to the crash. For the last several years, U. S. railroads have been under the federal gun to complete installation of Positive Train Control (PTC), a complicated system involving GPS receivers on trains,…

Building Series for web – Medium Engineering

medium haaaaack week 2018 coming in hot this is why they don’t let me design things for production The first week of January this year Engineering was left to its own devices for the time honored tradition of following your own heart, and developing features for Medium that personally interest you — hackweek!. This year Emma Zhou, Herzog and I with our powers combined are so excited to present to you Series for Web We launched Series on the Medium mobile apps last year…

Using technology to detect hidden threats

Post-doctoral fellow Philip Saponaro demonstrates the imaging technology being developed in the VIMS lab, which picks up signals from a person in the camera’s view. Credit: University of Delaware/ Evan Krape Soldiers in combat have to constantly scan their surroundings for improvised explosive devices (IEDs), a signature weapon of modern warfare. These homemade bombs are often hidden—nestled in bushes, buried underground, or sometimes stuffed inside other objects. Now, a research group at the University of Delaware is developing technology to…

Keeping Related Pins fresh – Pinterest Engineering – Medium

Jenny Liu | Software Engineer, Discovery If you’ve ever heard someone mention “the Pinterest Rabbit Hole,” they’re likely referring to Related Pins, the ideas you see below a Pin you’ve tapped. Related Pins is a feed of content relevant to the closeup Pin and accounts for 40 percent of engagement on Pinterest. With such high usage, it’s critical these recommendations are as personal, relevant and useful as possible. We dug a bit further and found an opportunity to make Related…

New brain disease test for Parkinson’s, dementia with Lewy bodies — ScienceDaily

National Institutes of Health scientists developing a rapid, practical test for the early diagnosis of prion diseases have modified the assay to offer the possibility of improving early diagnosis of Parkinson’s disease and dementia with Lewy bodies. The group, led by NIH’s National Institute of Allergy and Infectious Diseases (NIAID), tested 60 cerebral spinal fluid samples, including 12 from people with Parkinson’s disease, 17 from people with dementia with Lewy bodies, and 31 controls, including 16 of whom had Alzheimer’s…

Chicken pox vaccine linked with shingles at the vaccination sight in some children — ScienceDaily

New research in Pediatric Dermatology reports several cases of shingles that developed at the original vaccination site in healthy children after they were immunized against chicken pox.  Most of these cases were initially misdiagnosed as other skin rashes. While some of these patients underwent tests to help make the diagnosis, all of the children recovered without complications.  Infection with the varicella-zoster virus leads to chickenpox, or primary varicella. The virus then lies dormant and can later reactivate as shingles, or herpes zoster.  The varicella-zoster…

Improving drone performance in headwinds

Quad-rotor configuration with outer side tiled rotor. Credit: Hikaru Otsuka The prevalence of multi-rotor drones has increased dramatically in recent years, but in headwinds, they pitch upwards unpredictably. Engineers from Tohoku University, Japan, have shown that angling the rotor blades of a quad-rotor unmanned aerial vehicles by just 20 degrees can reduce pitching by a quarter. Their work is published in the International Journal of Micro Air Vehicles. Multi-rotors have gotten much smaller since the turn of the century, and…

Tumblr Engineering — NYC PHP Reboot

Reviewing code is one of the most important parts of an engineer’s job at Tumblr, even more so than writing code. Our codebases are shared by hundreds of engineers, so it’s critical to make sure we’re not just writing the best code we can, but that the code being written can be understood by others. Taking the time to review someone else’s code is the most critical opportunity to ensure all of that is happening. At Tumblr, every code change…

Mathematics pushes innovation in 4-D printing

Recent advances in digital factory science make it possible to print more compliant objects across a wider range of length-scales than conventional engineering processes. A bottleneck for enabling the next technological progress resides in filling the gap in the comprehension of the unprecedented degree of complexity dominating this novel technology. Mathematics plays a pivotal role in this contemporary industrial revolution: a study recently published by Nature Communications solves a problem of utmost importance for the development of 4-D printing, i.e.…