2014-07-26 Mystery in the Perseus Cluster
‘“I couldn't believe my eyes,” says Esra Bulbul of the Harvard Center
for Astrophysics. “What we found, at first glance, could not be
explained by known physics.”’
2014-07-21 Rosetta’s comet ‘sweats’ two glasses of water a second
ESA’s Rosetta spacecraft detects enough water vapor coming
off of comet 67P/Churyumov–Gerasimenko to fill an Olympic swimming
pool in 100 days. “Glasses” and “swimming pools” are the only units of
volume offered by the article on the European Space Agency website, which is otherwise
2014-07-20 Earth-like Soils on Mars
“Phosphorus depletion within the profiles is especially
tantalizing, because it [is] attributed to microbial activity on Earth.”
2014-07-20 Introduction to A*
A* is an algorithm for finding the shortest path on a grid.
This article is a lovely example showing how to use interactive
animation to help the reader understand complex ideas.
2014-07-13 Clojure Grimoire
“Community documentation of Clojure” – A convenient table of
2014-07-01 Me on G-Town Radio
I was interviewed by the gracious hosts of the G-Town Radio
2.0” this past Saturday. You can listen to or download the audio file
The occasional distortion is entirely my fault, for trying to use the
Google Talk Plugin, which kept cranking up the mic gain.
2014-07-01 JuliaCon Presentation Slides
The Julia language
’s first conference has recently wound up
and the PDF
s of the slide decks are available here. Just
click on the topic you want to see and then on the filename to
2014-06-30 Espresso on the ISS
To the relief of the Italian astronauts, there is now an
espresso machine on the space station.
2014-06-26 Vim Awesome
Slick and usefully organized presentation of a large number
of Vim plugins.
2014-06-25 Man Dies After Sand Hole Collapses
a “49-year-old Virginia man vacationing on the Outer Banks
has died after he was buried in 6 feet of sand while digging a tunnel
to connect two large holes.”