Profile

Cover photo
Joseph Lust
Works at MC10, Inc
Attended Duke University
251 followers|373,563 views
AboutPostsPhotosYouTube+1'sReviews

Stream

Joseph Lust

Shared publicly  - 
 
If your first two attempts to rotate and take off don't work, just keep on trying.
1
Add a comment...

Joseph Lust

Shared publicly  - 
 
Pretty much details why I do things right at work, much to the dismay of coworkers. Why can't we keep creds on the wiki or in git? Why do we only run each service as a separate user with the bare minimum possible rights? Why are all dev resources secured on a private VLAN, subnet, and VPN? Why only SSH key access? Read on.
1
jeff williams's profile photo
 
yes, but now that you live in the $2 wirelessly connected arm cores world (most with homebrew stacks) don't you think it's going to get a lot harder for a while? no mmu? well, no two-bank firmware updates. no ring 0? priv escalation trivial! btle? replay, bce, and who knows (b/c it's all sdr now and you can't know your vendor stack code).

something (someone) trusts your sticker. it's even a hard question to know how to manage thousands or millions of keys at scale when ce margins are already thin. (quality mgmt is expensive.)

i worry about this embedded stuff constantly. it's not like we can go back and redo it right five years from now when there's billions of them in/on our bodies.

haxors have setup shop in embedded and the connected device makers are somewhat naive. this is not a criticism at all - i do this stuff everyday and it's not easy, and like you i'm conscientious.

the heroku/container crowd have always done a good job of sharing/coordinating best practices. probably because they've had their networked teeth kicked in for 30 years. we need more of that in embedded - and pronto. 
Add a comment...

Joseph Lust

Shared publicly  - 
 
Anyone else tired of waiting until near midnight to see the marquee tape delayed outcome of the #RioOlympics women's gymnastics last night? Luckily, to pass the time, we got to watch Phelps sit around for 40 minutes, live, to make sure he did well in a semi, for a race he has 3 medals, the Olympic, and world records in. It's like NBC has monkeys running their programming department.

So what did I do? I read Google news, saw that the US won, and went to bed, because we'd already been watching for 4 hours as NBC screwed around.
Read more of our latest coverage of the 2016 Summer Olympic Games, in Rio de Janeiro.
1
1
Add a comment...

Joseph Lust

Shared publicly  - 
 
Seems the #Orion capsule has a minor design flaw; it's too heavy for the rocket that will launch it. Oops. #FML  
The pressure hull for Boeing's CST-100 Starliner structural test article sits inside a repurposed space shuttle hangar at NASA's Kennedy Space Center in Florida in this July 25 photo. Credit: NASA/Kim Shiflett. Boeing says engineers are resolving concerns with the mass and aerodynamic shape of ...
1
Add a comment...

Joseph Lust

Core Language  - 
 
Confusing misuses of Unit and the loss of type checking.
10
Atamert Ölçgen's profile photo
 
FYI; case object Good extends Result
Add a comment...

Joseph Lust

Shared publicly  - 
 
Just finished Zubrin's a Case For Mars so I'm ready to parse the Mars colonization architecture announcement by #SpaceX in September. This is flying under the radar of the mainstream press, but the JFK, we're going to #Mars speech of our generation has been scheduled for months.

The book, based on papers published 26 years ago, left me frustrated that we are wasting this generation's talent serving more targeted ads, building chat apps, and milking another microsecond from financial transactions. We could have a colony on Mars today and be in the opening decades of terraforming the planet. Why is everyone pissing away their talent working on social networks?
books.google.com - "Leading space exploration authority Robert Zubrin has crafted a daring new blueprint, Mars Direct, that experts are hailing as the most visionary and pragm...
3
Add a comment...

Joseph Lust

Shared publicly  - 
 
Software Engineering and Math, #ForTheWin. This presentation likely flew under the radar, but Computational Fluid Dynamics (CFD) let's you model crazy stuff and is crucial to SpaceX's success. The hardest stuff to model is combustion instability inside a rocket engine. Read about the V2, Saturn V, or N1 development, and you'll learn that modeling this is the hardest part of rocketry. The Saturn V's F-1 engine required tons of trial and error to develop the most powerful engine ever made by man (~5M horsepower) blowing up many engines to get there.

SpaceX, like in all of Elon's pursuits, flipped the old modeling processes on its head, and can run very high resolution simulations on a single GPU that would have taken a grid of machines thousands of hours to compute before. Add to that, that such simulations are likely very handy for the models used during the Supersonic Retropulsion return flight of each Falcon 9, which undoubtedly has something to do with the last 3 flights hitting the bull's eye from over 100mi up in space.

w00t #math!


1
Add a comment...
Have him in circles
251 people
anton wardani's profile photo
João Marcelo's profile photo
Giovanni Sanchez's profile photo
Colin Alworth's profile photo
Raymond Jean's profile photo
Ryan Beck's profile photo
faiyaz sami's profile photo
Stephen Haberman's profile photo
Elizabeth Ryan's profile photo

Communities

4 communities

Joseph Lust

Shared publicly  - 
1
Add a comment...

Joseph Lust

Shared publicly  - 
 
Turn that oh fudge moment into a jk moment.
1
Add a comment...

Joseph Lust

Discussion  - 
 
Phoenix framework guys put out some benchmarks, and Play! kicked butt. I can attest to this performance, as the API's at my office never break a sweat when API clients go nuts and start hammering an API endpoint, but Play! just plows through it.
1
Joseph Lust's profile photoJonathan Pugh's profile photo
3 comments
 
Joseph, I was referring to this:
https://www.techempower.com/benchmarks/#section=data-r12&hw=peak&test=json
spray did quite poorly compared to play in that benchmark. I had always heard spray was quite fast as well so I was surprised. Any ideas why?
Add a comment...
 
The surprising impact of different modulo algorithms in Java and Scala.
My textbooks used modulo, yet my boss told me not to. Where had I gone wrong?
7
1
Mk Chan's profile photo
Mk Chan
+
1
2
1
 
Try (n < b ? n : n % b)
That's what I've been using
Add a comment...

Joseph Lust

Shared publicly  - 
 
You've got to love it. The book price inversion is happening. I went to pickup a copy of The Case for Mars in advance of ICS 2016, only to notice the Kindle edition is 78% more expensive than the hardcover (free shipping).

That's right, people supposedly value the non-transferable digital version at 78% higher value than the resalable physical artifact. Nuts.

ProTip (tm): I picked it up for $0.75 on half.com instead.
3
Add a comment...
People
Have him in circles
251 people
anton wardani's profile photo
João Marcelo's profile photo
Giovanni Sanchez's profile photo
Colin Alworth's profile photo
Raymond Jean's profile photo
Ryan Beck's profile photo
faiyaz sami's profile photo
Stephen Haberman's profile photo
Elizabeth Ryan's profile photo
Communities
4 communities
Work
Occupation
Big Data development at Cloud scale, plus API and webapp development to showcase the results.
Skills
AWS, Cloud, Cassandra, Spark, Kafka, Play! Framwork, Java, GWT, SQL, Spring, PHP, JS
Employment
  • MC10, Inc
    Senior Software Engineer, 2015 - present
  • Fidelity Investments
    Senior Software Engineer, 2013 - 2015
  • Deutsche Bank
    Application Developer, 2010 - 2013
Basic Information
Gender
Male
Story
Tagline
Runner, code simian, wordsmith
Introduction
A connoisseur of the esoteric and astute, he is fond of charts, numbers, and screens full of code and relaxes by reading books on metallurgy and other complicated things.

Always a fan of criticism, Joe invites your pedantry.
Bragging rights
Bringing back the three piece suit
Collections Joseph is following
Education
  • Duke University
    Engineering Management
  • University of Rochester
    Biomed Engineering, Optical Engineering
Links
Other profiles
Contributor to
Joseph Lust's +1's are the things they like, agree with, or want to recommend.
TeamCity 8: Setup On Linux - fd Blog
blog.fire-development.com

Introduction This tutorial shows how to install TeamCity on a Linux server. Please note that you will need a Build Agent that runs on Window

Java WebDriver BDD framework using Cucumber-JVM
roadtoautomation.blogspot.com

In this post I will show you how to create BDD framework in webdriver selenium using cucumber-jvm. Cucumber –JVM is based on cucumber framew

New Scene Graph Renderer | Qt Blog
blog.qt.digia.com

Few phrases are more misused in software, whispered in social channels, promised over the negotiating table or shouted out loud in blogs, as

Octotree
chrome.google.com

Display GitHub code in tree format

2014 Boston Marathon
karaleighb.blogspot.com

Though Boston was not my "A" race of spring and I hadn't been training specifically for a marathon, I'd been excited about it for weeks... F

2014 Boston Marathon Race Report
chasingtaj.blogspot.com

A marathon teaches resilience. The Boston Marathon teaches how to maintain resilience over not just a day, but a long period of time. Resili

Software in 2014
www.tbray.org

We’re at an inflection point in the practice of constructing software. Our tools are good, our server developers are happy, but when it come

On Amazon EC2 Spot Price Spikes
www.somic.org

Personal blog of Dmitriy Samovskiy, focuses on cloud computing, infrastructure as a service, platform as a service, infrastructure as code,

G1 Garbage Collector - Big Heaps and Low Pauses?
www.slideshare.net

Devoxx 2012 talk by Jaromir Hamala, C2B2 Senior Consultant. The Garbage-First (G1) is the latest garbage collector in the JVM, aiming to be

Nexus
www.google.com

Discover the new Nexus smartphone and tablets from Google.

gwt-examples
code.google.com

Google Web Toolkit examples with eclipse

gwt-platform
code.google.com

GWTP: A complete model-view-presenter framework to simplify your next GWT project.

Research In Motion Limited: TSE:RIM quotes &amp; news - Google Finance
www.google.com

Get detailed financial information on Research In Motion Limited (TSE:RIM) including real-time stock quotes, historical charts &amp; financial n

Google Developers
plus.google.com

Inspiring developers everywhere

Gmelius · Towards a Cleaner Gmail™
gmelius.com

Gmelius is poly-browser extension that enhances your Gmail experience by removing ads and putting in place diverse UI changes. Get it now at

Google Mobile
mobile.google.com

Get Google Maps, Sync, Gmail, YouTube, and Latitude for your phone. Never be stumped with Google mobile in your pocket. Available for BlackB

Widgets &amp; Units - Google Web Toolkit Examples &amp; Demos
sites.google.com

Examples, Demos and Source for some of my Google Web Toolkit GWT examples.

Great Indian. Not Americanized. Enough to leave me full every time.
Public - a year ago
reviewed a year ago
Great spot for lunch after climbing around the beach. Eclectic assortment of healthy fare. Loved the burrito and the tuna salad sandwich (bread was fresh and delicious). Service was quick.
Public - 2 years ago
reviewed 2 years ago
6 reviews
Map
Map
Map