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Category: Construction Engineering

No Do-Over for New Orleans Hard Rock Hotel

There is a saying I’ve heard more than once from fellow engineers involved in a rush job:  “There’s not enough time to do it right, but there’s always enough time to do it over.”  In other words, sometimes the only way managers will give engineers enough time to do a thing right is if it fails the first time.  Unfortunately for three construction workers who died and numerous other people injured and otherwise harmed by the collapse on Oct. 12…

A day in the life of a Backend Foundation Engineer at Slack

While it’s not always easy to get up before seven, particularly when the sun hasn’t risen yet, being able to get a head start on the day before most of the city begins their commute makes it worthwhile. I sneak out of bed and get ready for work. I’m typically out the door, down the four flights of stairs, and walking to the BART by 6:50. I’ll pop in my earbuds and boot up the latest podcast in my queue:…

Lymphatic system found to play key role in hair regeneration — ScienceDaily

Given the amount of wear and tear it’s subjected to on a daily basis, the skin has a phenomenal ability to replenish itself. Spread throughout it are small reservoirs of stem cells, nested within supportive microenvironments called niches, which keep a tight rein on this repair process. Too much tissue might cause problems like cancer, while too little might accelerate aging. Until now, scientists were uncertain whether the stem cells themselves could instruct other stem cells to form new skin…

Going Keyless Everywhere

Time flies. The Heartbleed vulnerability was discovered just over five and a half years ago. Heartbleed became a household name not only because it was one of the first bugs with its own web page and logo, but because of what it revealed about the fragility of the Internet as a whole. With Heartbleed, one tiny bug in a cryptography library exposed the personal data of the users of almost every website online. Heartbleed is an example of an underappreciated…

Modernizing our Android build system: Part II, the execution

What does an engineer do after planning and decision on an approach? More planning! This time, the planning was laser-focused on what features to build into the new Android build system. Our team created a doc which outlined the milestones of the project and shared it to our internal customers for feedback. Subsequently, we agreed on the project scope and the key ideas for the migration. Foundation for migration Our goal in implementing a Gradle-only solution was to introduce flexibility,…

TLS Post-Quantum Experiment

In June, we announced a wide-scale post-quantum experiment with Google. We implemented two post-quantum (i.e., not yet known to be broken by quantum computers) key exchanges, integrated them into our TLS stack and deployed the implementation on our edge servers and in Chrome Canary clients. The goal of the experiment was to evaluate the performance and feasibility of deployment in TLS of two post-quantum key agreement ciphers. In our previous blog post on post-quantum cryptography, we described differences between those…

Taking City Visualization into the Third Dimension with Point Clouds, 3D Tiles, and deck.gl

To better understand Uber’s aerial ridesharing and business data in the context of urban mobility, our engineers and data scientists routinely visualize large geospatial data sets. One of Uber’s primary tools for working with these data sets is deck.gl, our open source web-based geospatial visualization framework. Highly GPU-accelerated, deck.gl is capable of fluidly visualizing and animating several million data items on modern laptop computers. However, the size of geospatial data sets is growing rapidly and is already several orders of…

50 Years of The Internet. Work in Progress to a Better Internet

It was fifty years ago when the very first network packet took flight from the Los Angeles campus at UCLA to the Stanford Research Institute (SRI) building in Palo Alto. Those two California sites had kicked-off the world of packet networking, of the Arpanet, and of the modern Internet as we use and know it today. Yet by the time the third packet had been transmitted that evening, the receiving computer at SRI had crashed. The “L” and “O” from…

Blue Ribbon Panel on Hyperloop Releases Report

Engineering Dean Elizabeth Loboa (l), Lt. Gov. Mike Kehoe, House Speaker Elijah Haahr, UM President Mun Choi, Sen. Caleb Rowden, MU Chancellor Alexander Cartwright and Treasurer Scott Fitzpatrick field questions at the Blue Ribbon Panel on Hyperloop news conference Oct. 28. Missouri’s Special Blue Ribbon Panel on Hyperloop (BRPH) released its final report during a news conference on the Francis Quadrangle Oct. 28. Missouri House Speaker Elijah Haahr created the panel in March following a feasibility study completed by engineering…

Supporting the latest version of the Privacy Pass Protocol

At Cloudflare, we are committed to supporting and developing new privacy-preserving technologies that benefit all Internet users. In November 2017, we announced server-side support for the Privacy Pass protocol, a piece of work developed in collaboration with the academic community. Privacy Pass, in a nutshell, allows clients to provide proof of trust without revealing where and when the trust was provided. The aim of the protocol is then to allow anyone to prove they are trusted by a server, without…