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Author: engineering

Cicada wings may inspire new surface technologies

The wings of Megatibicen dorsatus, a prairie-dwelling cicada, are helping engineers design water-repellent surfaces. Credit: Catherine Dana Researchers are looking to insects – specifically cicadas – for insight into the design of artificial surfaces with de-icing, self-cleaning and anti-fogging abilities. Their wings allow cicadas to fly, of course, but they also are good at repelling water – a condition that humans can appreciate, too. “Our work with cicadas is letting us explore a field called bioinspiration,” said Nenad Miljkovic,…

Engineering Scalable, Isolated Mobile Features with Plugins at Uber

As Uber grows, we continue to refine our approach to architecting mobile applications in order to support the scale of our businesses. When apps grow it can become harder to add new features without breaking other features, experiment with existing features, and decide where new features should be integrated. Our investments in RIB architecture and plugin tooling over the last 18 months targeted these scaling problems and has allowed Uber engineers to measurably increase their productivity, and in many cases,…

Team finds reason behind defects in 3-D printing

High-speed images of a common laser-based metal 3D printing process, coupled with newly updated computer models, have revealed the mechanisms behind material redistribution, a phenomenon that leads to defects in printed metal parts. Credit: Lawrence Livermore National Laboratory High-speed images of a common laser-based metal 3-D printing process, coupled with newly updated computer models, have revealed the mechanisms behind material redistribution, a phenomenon that leads to defects in printed metal parts, Lawrence Livermore National Laboratory (LLNL) researchers reported. In a…

How to Remain Secure While Using Public Wi-Fi

We are stuck to our smartphones the whole day, and businesses are taking advantage of this addiction by offering free public Wi-Fi. It is now being offered almost everywhere and has become a way to attract more people to your business. It has worked wonders for owners all around the globe as they have started to get more and more customers, which comes as no surprise. People are addicted to their smartphones and internet, and when they are getting it…

The Languages Which Almost Became CSS

The history of all the languages which almost became CSS and the development of the styled web. When Tim Berners-Lee announced HTML in 1991 there was no method of styling pages. How a given HTML tag was rendered was determined by the browser, often with significant input from the user’s preferences. To many, it seemed like a good idea to create a standard way for pages to ‘suggest’ how they might prefer to be rendered stylistically. This was adapted from…

The Coffee Shop Kiosk – Square Corner Blog – Medium

When I joined the Developers team at Square, the first thing I did was build an application that uses our APIs. Every new engineer on the team does this (you can read about my colleague’s example Android app here) so that we can walk in our customers’ shoes. It’s become a great tool to reinforce feedback from developers when building real world applications. For my project, I chose to build a customer-facing kiosk application as we’re seeing more and more…

How we built automated support – Kickstarter Engineering

This is the story of how Kickstarter’s Data team collaborated with the Community Support team and the Engineering team to build a support automation tool called Sassy — and how our workplace collaboration was enriched in the process. Origins in empathy Successful companies tend to have a deep, fundamental empathy with their users. At Kickstarter we try to bring empathy to every part of the organization, from the design of human-oriented products to the care and tone of our Community Support emails. On…

July 2017 – Square Corner Blog – Medium

Lightning talks on the theme “Nerd Out Loud.” We just wrapped up another edition of Hear + Now, Square’s quarterly series of lightning tech talks that we offer to marginalized groups as a non-intimidating space to present. After one of our WomEng members attended AlterConf, we decided to open up the speakers to anyone who identifies as belonging to a marginalized group (and wrote a blog post explaining these changes). Our latest event featured six speakers: three technical, two on…

How Uber Engineered a New Feature to Celebrate Drivers

Architecting seamless and enjoyable experiences for our users drives our engineering vision at Uber. As part of this mission, our team constantly develops new ways to better recognize and celebrate drivers. One example is Driver Profiles, a platform designed to enhance the Uber experience by spotlighting driver stories and achievements in the app and creating meaningful connections with riders. From a technical perspective, developing and shipping Driver Profiles seemed straightforward. The data–e.g., name, trip count, and driver-submitted information–that we needed…

Hazards of high oxygen concentration, mixing incompatible materials, and more in process safety newsletters

Posted By Jyllian Kemsley on Aug 1, 2017 in Accidents, Featured, Industry, Safety resources | From AIChE’s “Process Safety Beacon” newsletters: Hazards of high oxygen concentration – “Autoignition temperature (AIT) and minimum ignition energy (MIE) are lowered markedly by higher oxygen content. Substances ignite more readily, burn faster, generate higher temperatures, and are difficult to extinguish.” Mixing incompatible materials in storage tanks – “Understand potential hazardous interactions among different materials that you unload into your plant’s storage…