- How to Hire (Henry Ward) — this isn’t holy writ for everyone, but the clear way in which he lays out how he thinks about hiring should be a model to all managers, even those who disagree with his specific recommendations.
- From the Ground Up: Reasoning About Distributed Systems in the Real World (Tyler Treat) — When we try to provide semantics like guaranteed, exactly-once, and ordered message delivery, we usually end up with something that’s over-engineered, difficult to deploy and operate, fragile, and slow. What is the upside to all of this? Something that makes your life easier as a developer when things go perfectly well, but the reality is things don’t go perfectly well most of the time. Instead, you end up getting paged at 1 a.m. trying to figure out why RabbitMQ told your monitoring everything is awesome while proceeding to take a dump in your front yard. An approachable argument for shifting some consistency checks to application layer so the infrastructure can be simpler.
- 3D Printed Ceramics to 1700°C (Ars Technica) — The key step used in the new work is to replace the standard polymers used to create ceramics with a chemical that polymerizes when exposed to UV light. (These can have a variety of chemistries; the authors list thiol, vinyl, acrylate, methacrylate, and epoxy groups.) This means they’re able to be polymerized using a fairly standard 3D printer setup. In fact, the paper lists the model number of the version the authors bought from a different company.
- Guesstimate — spreadsheet for things that aren’t certain.
"materials science" entries
Liza Kindred on the evolving role of data in fashion and the growing relationship between tech and fashion companies.
In this podcast episode, I talk with Liza Kindred, founder of Third Wave Fashion and author of the new free report “Fashioning Data: How fashion industry leaders innovate with data and what you can learn from what they know.” Kindred addresses the evolving role data and analytics are playing in the fashion industry, and the emerging connections between technology and fashion companies. “One of the things that fashion is doing better than maybe any other industry,” Kindred says, “is facilitating conversations with users.”
Gathering and analyzing user data creates opportunities for the fashion and tech industries alike. One example of this is the trend toward customization. Read more…
DNS Benchmarking, Intro to Macroeconomics, Materials-Sensing Cameras, and 3D Printing Lab Messed Around
- Namebench (Google Code) — hunts down the fastest DNS servers for your computer to use. (via Nelson Minar)
- Primer on Macroeconomics (Jig) — reading suggestions for introductions to macroeconomics suitable to understand the financial crisis and proposed solutions. (via Tim O’Reilly)
- Smarter Cameras Plumb Composition — A new type of smarter camera can take a picture but also assess the chemical composition of the objects being imaged. This enables automated inspection systems to discern details that would be missed by conventional cameras. Interesting how cameras are getting smarter: Kinect as other significant case in point. (via Slashdot)
- Not So Open — 3D printing lab at the University of Washington had to stop helping outsiders because of a crazy new IP policy from the university administration. These folks were doing amazing work, developing and sharing recipes for new materials to print with (iced tea, rice flour, and more) (via BoingBoing)
Fair Use Economy, Deconstituted Appliances, 3D Vision, Redis for Fun and Profit
- Fair Use in the US Economy (PDF) — prepared by IT lobby in the US, it’s the counterpart to Big ©’s fictitious billions of dollars of losses due to file sharing. Take each with a grain of salt, but this is interesting because it talks about the industries and businesses that the fair use laws make possible.
- Disassembled Household Appliances — neat photos of the pieces in common equipment like waffle irons, sandwich makers, can openers, etc. (via evilmadscientist)
- GelSight — gel block on a sheet of glass, lit from below with lights and then scanned with cameras, lets you easily capture 3D qualities of the objects pressed into it. Very cool demo–you can see finger prints, pulse, and even make out designs on a $100 bill.
- Redis Tutorial (Simon Willison) — Redis is a very fast collection of useful behaviours wrapped around a distributed key-value store. You get locks, IDs, counters, sets, lists, queues, replication, and more.
Smart Materials, Google OCR API, Teaching Webinar, HistEx
- Smart Materials in Architecture — Using thermal bimetals can allow architects to experiment with shape-changing buildings, Ritter said. Thermal bimetals include a combination of materials with different expansion coefficients that can cause a change in. Under changing temperatures this can lead one side of a compound to bend more than the other side, potentially creating an entirely different shape, he said. A little impractical at the moment, but think of it as hackers experimenting with what’s possible, iterating to find the fit between materials possibility and customer need. (via Liminal Existence)
- Google OCR API — The server will attempt to extract the text from the images; creating a new Google Doc for each image. Experimental at this stage, and early users report periodic crashes. Still, it’s a useful service. I wonder whether they’re seeing how people correct the scan text and using that to train the OCR algorithms. (via Waxy)
- My O’Reilly Podcast: Dan Meyer — I’m not pimping this because it’s O’Reilly (O’R do heaps of stuff I don’t mention) but because it’s the astonishingly brilliant Dan Meyer. For everything it does well, the US model of math education conditions students to anticipate narrowly defined problems with narrowly prescribed solutions. This puts them in no place to anticipate the ambiguous, broadly defined, problems they’ll need to solve after graduation, as citizens. This webcast will define two contributing factors to this intellectual impatience and then suggest a solution.
- Inflation Conversion Factors for Dollars 1774 to Estimated 2019 — in PDF and Excel format. I’ve wanted such a table in the past for answering those inevitable “… in today’s dollars?” historical business questions. (via Schuyler on Delicious)
- Bioweathermap — crowdsourcing the gathering of environmental samples for DNA sequencing to study the changing distribution of microbial life. Another George Church project. (via timoreilly at Twitter)
- We Are All African Now — a great article about our genetic history and the computational genomics that makes it possible. (via Tim Bray)
- Standing Out In The Crowd — OSCON keynote by Kirrily Robert on women in open source. Excellent.
- Energy Harvesting Powers Printed LED — an interesting combination of two emerging technologies. Like an RFID, the circuit has a current induced by the presence of a changing RF field. The EL display and the RFID circuit are printed in organic compounds, whereas the power control is built with traditional circuit fabrication techniques. (via Freaklabs)