Author Archives: Kevin

About Kevin

Kevin Jarnot is a technologist who lives just South of Boston, MA. He is currently employed as Chief Technology Officer at DebtX, a financial services technology company based in Boston.

RIP George Duke

George Duke, dead at 67.

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An Open Letter to the Worst Wax Museum in America

From vice.com:

An Open Letter to the Worst Wax Museum in America | VICE United States

Dear Hollywood Wax Museum,

I recently visited your Los Angeles location and was exceptionally disappointed with what I saw.

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How Netflix Deploys Code

I find this incredibly fascinating. After almost 20 years of carefully planning and executing website releases, Netflix’s process both makes sense and scares the hell out of me.

Netflix, the popular movie streaming site, deploys a hundred times per day, without the use of Chef or Puppet, without a quality assurance department and without release engineers. To do this, Netflix built an advanced in-house PaaS (Platform as a Service) that allows each team to deploy their own part of the infrastructure whenever they want, however many times they require.

Additionally, they purposely introduce failures into their infrastructure to test resiliancy:

Failure happens continuously in the Netflix infrastructure. Software needs to be able to deal with failing hardware, failing network connectivity and many other types of failure. Even if failure doesn’t occur naturally, it is induced forcefully using The Simian Army. The Simian Army consists of a number of (software) “monkeys” that randomly introduce failure. For instance, the Chaos Monkey randomly brings servers down and the Latency Monkey randomly introduces latency in the network. Ensuring that failure happens constantly makes it impossible for the team to ignore the problem and creates a culture that has failure resilience as a top priority.

Good stuff.

via InfoQ

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Sad, but possibly true

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It’s Not About the Nail

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The Scientific 7-Minute Workout

Unless you’re going for above-normal strength, extreme muscle definition or cardio fitness, this really is all you need to do.

The Scientific 7-Minute Workout – NYTimes.com

Exercise science is a fine and intellectually fascinating thing. But sometimes you just want someone to lay out guidelines for how to put the newest fitness research into practice.

An article in the May-June issue of the American College of Sports Medicine’s Health & Fitness Journal does just that. In 12 exercises deploying only body weight, a chair and a wall, it fulfills the latest mandates for high-intensity effort, which essentially combines a long run and a visit to the weight room into about seven minutes of steady discomfort — all of it based on science.

“There’s very good evidence” that high-intensity interval training provides “many of the fitness benefits of prolonged endurance training but in much less time,” says Chris Jordan, the director of exercise physiology at the Human Performance Institute in Orlando, Fla., and co-author of the new article.

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Yuni: A Headphone for People With Single-Sided Hearing Loss

This is a brilliant idea if it actually works.

Our team is proud to present the Yuni — the first headphone offering true stereo sound for individuals with unilateral deafness or hearing impairment!

Since most headphone manufacturers ignore the needs of unilaterally deaf listeners, the options have been limited. Either miss half the music, or find a way to collapse the two stereo channels into a single channel and listen with one ear. But the interference between the two channels coming from the same speaker will boost some frequencies and cut others, resulting in a messy, cramped sound.

The Yuni gets around this problem with a revolutionary new stereo technology (patent pending) that places both stereo channels in a single earpiece, but with two separate speakers instead of just one — one above, and one below the ear opening. This design takes advantage of our ear’s natural shape, which functions to help us localize where sound is coming from. With the Yuni, you can hear and distinguish the two channels, identifying which sound is coming from which speakers. Even better, the music will sound truly spacious, not squished, and you can finally hear true stereo panning as the sound moves from one channel to the other!  If you’re a unilaterally deaf music-lover who has never experienced these effects through headphones before, it may be difficult to appreciate how much your music will open up and come alive when it’s played the way it was meant to be enjoyed…in stereo.

I have been ~75% deaf in my right ear ever since I suffered nerve damage from a viral infection 15 years ago (who knew you could go deaf from sinusitis‽). I can still hear music decently well if I use headphones, so I’m not sure if I need a Yuni. It would be great to try a pair and see if the quality of the listening experience improves significantly.

Check out: Yuni: A Headphone for People With Single-Sided Hearing Loss by Daniel Glass — Kickstarter

Posted in Interesting, Music, Tech | 6 Comments

J.J. Abrams talks about new Star Trek and Star Wars movies

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Simon Sinek: How great leaders inspire action

Simon Sinek’s TEDx talk on “How great leaders inspire action”

“People don’t buy what you do, they buy why you do it.”

Posted in DeepThoughts, Management | Leave a comment

Ode to a Shipping Label

c/o @Shyhoof – “An ode to the journey of ó on a shipping label.

ODE TO A SHIPPING LABEL

Once there was a little o,
with an accent on top like só.

It started out as UTF8,
(universal since ’98),
but the program only knew latin1,
and changed little ó to “ij” for fun.

A second program saw the “ij”
and said “I know HTML entity!”
So “ij” was smartened to “ó”
and passed on through happily.

Another program saw the tangle
(more precisely, ampersands to mangle)
and thus the humble “˜³”
became “ó”

Shipping label

Posted in Amusements, Tech | 1 Comment