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Mark Lewis
Works at Trinity University
Attended Trinity University
Lives in San Antonio, TX
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Mark Lewis

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I really want to work on getting my collision simulations running under Scala with Akka. There will be quite a few challenges in doing this, but the possibilities for scaling things out and getting really massive simulations aer just too tempting.
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Mark Lewis

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Curiosity is doing great things, but I have to admit that I simply love HiRISE images.
 
Look closely! Our Curiosity Mars rover and its tracks are visible in this view from orbit, acquired on April 11 by the High Resolution Imaging Science Experiment (HiRISE) camera on our Mars Reconnaissance Orbiter. The rover is near the largest butte in the lower left quadrant of the image, at about a two o'clock position relative to the butte. It appears bright blue in the exaggerated color of this image. Curiosity entered the area included in this image on March 12, along the tracks visible near the upper left corner.

The multi-layered location filling much of the left half of this image is called "the Kimberley." Curiosity's science team chose it, based on other HiRISE images, as a potential gold mine for the rover mission. Black gold, that is, as organic material that, if found at the Kimberley could be a biomarker (sign of past life) -- the holy grail of Mars exploration.

Image credit: NASA/JPL-Caltech/Univ. of Arizona

#mars #marscuriosity #msl #hirise #uarizona #planets #space #nasa #science

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Mark Lewis

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This sounds really cool, but I have significant reservations. The definition of P and NP in this write-up is remarkably poor. That was likely just done to make things understandable. I dislike that it is also flat out wrong.

The more interesting thing is the relationship between physics and computational complexity. I'm not certain I think much of that either. His whole premise is based on the idea that the Universe has to explicitly "do computations" to make things happen. I don't see any reason to believe that is the case. I might like the image of the Universe as a computing device, but I don't think I'm willing to take it as far as he does. I'd want to think more on that and probably discuss it with people though.

I pulled up the link for the full paper, but I don't expect I will be taking the time to actually read it soon though. Simply too much to do for that.
With some straightforward logic, one theorist has shown that macroscopic quantum objects cannot exist if P≠NP, which sud…
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Pancomputationalism for the win!
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Gotta love xkcd. Explaining tech in terms everyone can understand.
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Yes, even a non-tech person should feel a suitable level of dread once reading that!
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Great article. Lots of humor and thought provoking ideas.
Our robot overlords are already here. We’re just anthropomorphizing our technology in more subtle ways than we’d imagined in the past.
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Have him in circles
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Mark Lewis

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This advice column highlights why small colleges are in for a very rough ride. I'm sure that a few years ago the advice would have been very different. Public perception has turned against colleges in many ways and that is a hard thing to deal with, even if the perception is wrong.
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It lacks details, but it follows a theme that we are hearing a lot recently. Anyone who has been following me know that I completely agree. I expect to see the ranks of small colleges in the US thinned dramatically in the next decade.
These are agonizing times for small, private colleges. Enrollment is falling. Debts are rising. Tuition is high as it can go. And since the financial crisis, schools have been shuttering more often than normal. Now, Moody’s Investor Service, which analyzes the credit worthiness of more than 500 public and private...
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Mark Lewis

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This has a nice little description of the basics of railguns. Hopefully we won't get many opportunities to see what these can do.
New technology capable of launching projectiles over 200 kilometers at Mach 5 or higher.
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"Scala catches a lot of unwarranted flack. Rather than stretch themselves, some developers with short attention spans lash out and run away to more familiar languages. That’s fine. The problem is that they leave a trail of online discouragement in their wake, which is unfair to Scala as a language and makes interested developers question the value of the language."
Advice from a developer who helped rebuild Walmart.ca with Scala and Play
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If you like static typing I would argue that Scala is a good choice. Of course, there are many other factors. If you don't like the JVM, you should probably consider other options. I'm just not certain what I would recommend. As always, it depends greatly on what you want to do.
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Get them started early.
 
HTML for Babies. http://youtu.be/-jWRYs4A2LU
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Wonderful 
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People
Have him in circles
11,824 people
Work
Occupation
Associate Professor
Skills
Programming (Scala, Java, C++, C, plus experience with many others), Planetary Dynamics, Writing (since I have publish a textbook to the inevitable dismay of my HS English teachers)
Employment
  • Trinity University
    Associate Professor, 2001 - present
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
San Antonio, TX
Previously
Austin, TX - Boulder, CO - Westminster, CO - Arvada, CO
Contact Information
Home
Email
Work
Phone
210-999-7022
Email
Address
Department of Computer Science, 1 Trinity Place, San Antonio, TX 78212
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Story
Tagline
I have two kids, I love to program, I study the dynamics of planetary rings, and I enjoy roller skating.
Introduction
I use Google+ to share ideas with people, including students. I also find hangouts to be a nice way to "meet" with students when I can't be on campus. If you would be interested in seeing the things I post related to computing, AI, robotics, or other stuff, just let me know.

A possible view of how to run the world in a post-scarcity future: "To each according to his usage. From each according to his desire. Automate the rest."
Bragging rights
It has been said that I make students cry. (Generally by the students.) However, I simply view my job to be working to build a better person, more equipped to handle the world in 5-10 years. If that means I have to completely destroy what they are today, so be it. :P
Education
  • Trinity University
    Physics, 1992 - 1996
  • Trinity University
    Computer Science, 1992 - 1996
  • University of Colorado at Boulder
    Astrophysics and Planetary Science, 1996 - 2001
  • University of Colorado at Boulder
    Computer Science, 1998 - 2000
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Gender
Male
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Friends, Networking
Relationship
In a relationship
Nice rink. Adult night had a lot of good skaters.
Public - 5 months ago
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