Year: 2011

So a neutrino runs into a tachyon in a bar….

Posted onAuthorChristine Corbett MoranLeave a comment

So a neutrino runs into a tachyon in a bar…. HHere’s a collection of interesting twitter snippets from physicists I follow on twitter about today’s neutrino webcast announcing the surprising, and frankly unbelievable, results that the OPERA collaboration observed superluminal neutrinos. I haven’t watched the webcast myself, nor read the paper beyond the abstract yet so can only comment that I believe it must be systematics. That said it would be insanely interesting to be proven otherwise. Finally, the following highlighted tweets are in reverse chronology, because, well… I’ve been here since the day after tomorrow, said the tachyon. What took you so long? Read More …

Galaxy clothing

Posted onAuthorChristine Corbett MoranLeave a comment

I splurged and bought two galaxy printed items of designer clothing the other week from the lovely http://www.blackmilkclothing.com/. Some colleagues and I couldn’t help but think about possibilities of extending this further: what about layers of astronomy themed clothing each featuring the same image taken in a different wavelength? Interested seamsters and seamstresses or people with an idea how to print high resolution images on fabric, please contact me! Read More …

SSL and packet sniffing with Wireshark.

Posted onAuthorChristine Corbett MoranLeave a comment

SSL stands for the secured socket layer and it is the way many websites handle encrypting your data as you communicate to them and helping you to verify that they are who you think they are, making it more difficult for others to view your traffic. As simple as using SSL is, many services don’t use it. What happens then? Well if an eavesdropper, let’s call her Eve, is somewhere on the same network as you are, for example if you are at a coffee house and she is sitting a few tables down from you, she can run any number of freely available tools (or one she wrote herself) to observe your network traffic. Sounds like a rather far fetched scenario, if you aren’t familiar with how easy it is to be Eve(il) if you so choose. Read More …

Fault tolerant computing

Posted onAuthorChristine Corbett MoranLeave a comment

As a first step to writing my own simulation code while attempting to do something useful, a few days ago I started writing a code to explore failure and recovery from failure in a distributed computation. By failure in this case, I mean when one of the computation units goes down. My test system is N harmonic oscillators on N nodes (or processes on a shared memory machine). Read More …

The Intersection of Productivity and Joy (over the past months)

Posted onAuthorChristine Corbett MoranLeave a comment

Since last we spoke a couple of months ago, I had a hell of a time personally: I moved house, went from one location to another too often, had a major and very stressful financial crisis and had some rough times with friends which rocked the emotional boat. Although there are many things which didn’t Read More …

Probing the dark matter issue in f(R)-gravity via gravitational lensing

Posted onAuthorChristine Corbett MoranLeave a comment

A few days ago in gr-qc  journal club we discussed an interesting paper by a member of our own institute, Probing the dark matter issue in f(R)-gravity via gravitational lensing.1. Background Dark Matter We theoretically expect dark matter to exist based largely on  extensive observations of both dynamics (rotation curves and objects such as the Read More …

Halos gone MAD

Posted onAuthorChristine Corbett MoranLeave a comment

I have previously blogged about Structure finding in cosmological simulations and the Haloes Going Mad conference in Madrid this past spring–there you will find the basic background if you are unfamiliar with the subject and I’ll skip that in this post. The result of this conference was a Halo-finder comparison project and its findings were recent posted on the physics arxiv in the paper Haloes gone MAD: The Halo-Finder Comparison Project. I’ll summarize them here.

The paper concentrates on comparing codes on given test data, not comparing the results of various codes to observations, provides a standard test suite and proposes a standard methodology of comparison, both on test, isolated, halos and on a simulation of cosmological volume. Read More …

Kliq Soft Launch

Posted onAuthorChristine Corbett MoranLeave a comment

Kliq soft launched this weekend. You can schedule a meetup (dinner, drinks, you name it) in just a few thumb taps with your local facebook friends or be adventurous and be introduced to a friend of a friend. This is just a taste of what’s to come. Get Kliq on the iPhone App Store at http://itunes.apple.com/lt/app/kliq/id412169676 or visit http://kliq.in. Read More …