Phil Bull (philbull)

Phil Bull

Don't know why I find GR calculations so fun. Maybe it's the sense of achievement when they go right? #cosmology

Phil Bull

I'm at the Inhomogeneous Cosmologies workshop in Jyvaskyla, Finland. http://is.gd/qWDbfT #cosmology

Phil Bull

Our paper's on the archive: kSZ effect in LTB models rules out simple voids http://arxiv.org/abs/1108.2222 #cosmology

Phil Bull

Finished the first draft of my paper. Bed time!

Phil Bull The Physics Group

Pluto is a greedy, greedy moon hog: http://www.nasa.gov/mission_pages/hubble/science/pluto-moon.html #astronomy !physics

Phil Bull

Went to see Harry Potter last night. Pretty good film, despite the cheesy ending. Now no-one has to pester me to read the books ever again.

Phil Bull

Annoying numerical integration problem solved. Lesson learned: don't give variables similar-looking names :( #coding

Phil Bull

They terminated JWST! #astronomy #nasa

Phil Bull

"Man makes appt. with old enemy. Dies--body keeps appt." Lovecraft (sorta) tweets from beyond the grave, c/o @boingboing http://is.gd/gyJLMb

Phil Bull

How inhomogeneous can the early #universe be? LTB models with early shell crossing singularities are telling us something... #cosmology #gr

Phil Bull

Shell crossings galore! #cosmology

Phil Bull

2011 is the centenary of Rutherford's paper on the discovery of the atomic nucleus. Great talk by Robin Marshall this pm #oxford #physics

Phil Bull

Interpolation debugging: Take d = (interp. fn) - (exact fn). If d ~ sawtooth, off-by-one error. If |sin(x)|, intrinsic interp error. #coding

Phil Bull

Do you use fabs() in your (C++) numerical codes? Yeah, it's super slow. #cosmology #coding

Phil Bull Guardian Guardian

Credulous bullshit in the @guardian: http://is.gd/8x7fdz Astrobiology's interesting, why misrepresent it by reporting shallow conjecture?

Phil Bull

Well done New York! http://yfrog.com/ked8jqrj

Phil Bull

Ooh, interesting problem for my weekend: 3D interpolation of likelihood when the three coordinate variables are strongly covariate. #cmml

Phil Bull

(Finally) playing with Amazon S3 and EC2. Good fun! Should be interesting if I can get my MCMC code running on it. #cosmology

Phil Bull GNOME , ryan lortie , Shaun McCance

Congratulations to @shaunm, @desrt and others on their election to the !GNOME Foundation Board of Directors!

Phil Bull Ubuntu users

Loving that #oxford has an !ubuntu mirror. One minute to download the Natty ISO :)