## Second Xamuel.com Linkfest

It’s that time again, time for another irregular linkfest. I’m still getting the hang of running these. Maybe this batch is a bit larger than I was anticipating. I guess two weeks is too long a period when there’s so much interesting material to share

The previous linkfest is here: The First Xamuel.com Irregular Linkfest

## Blogs and Similar Writings

Ngô Quốc Anh: Cofactor matrix has divergence-free rows

John Armstrong: Bump Functions

John Baez: This Week’s Finds (Week 312), (Week 313)

Ken Baker: Whiteheadtangletangle…adnauseum

John Bamberg: An exercise in number theory?

Ruben Berenguel: Road Trip Through Iceland: Day 4 – Two magic places, Svartifoss and Jökulsárlón

Ben Burgis: Some Objections to the Meaninglessness Solution to the Liar Paradox

David Corfield: Tarski’s Two Approaches to Modal Logic

Diana Davis: Choosing a graduate school

Default User: Propaganda

Cory Doctorow: War on the PC and the network: copyright was just the start

Brian Dunbar: Dear JPMorgan Chase

Nathan Eady: Three-Balloon Clown (with Twisting Instructions)

Mark Eichenlaub: Visualizing Elementary Calculus: Introduction, Visualizing Elementary Calculus: Trigonometry, A Non-mathematician’s Non-apology, My Brown Big Spiders

Enigman: Curry’s paradoxes, Simmons’ paradox

Lance Fortnow: Computer Science Takes Over

Bill Gasarch: Update on 17×17 problem

Victor Gijsburs: IF Theory Reader: “Crimes against Mimesis” by Roger S. G. Sorolla

Timothy Gowers: Milnor wins 2011 Abel Prize

Simon Grey: Private Protection of IP

Johann Hari: You Are Being Lied To About Pirates

Hilbertthm90: Gauss-Manin Connection, Connections and Curvature … on Schemes! … in Characteristic p?!

Khatzumoto: Timeboxing Trilogy, Part 10: Timeboxing, Tony Schwartz and Recovery

Emmanuel Kowalski: The group algebra as “universal endomorphisms”

JSE: How the Hippies Saved Physics: David Kaiser visits UW April 1

Dick Lipton: Happy St. Patrick’s Day–Again Again, Levin’s Great Discoveries

Michael Lugo: What is the origin of Kirillov’s lucky number problem?

Akhil Mathew: Polynomial-map involutions on

Mersenne: Nerdy chat-up lines

Mikko Mononen: Simulating Human Collision Avoidance, Layers in Detour

Jeffrey Morton: HGTQGR – Part IIIa (Workshop)

Matt Novak: Lunar Crawlers (1964)

Vik Olliver: Double Wade sighted in the workshop

Orchid64: Won’t Miss #299 – missing sisters, The Situation Now In Tokyo

Christopher Olah: To Print A Vacuum Cleaner

Alex Papadimoulis: The Glitchy SVN, The Disgruntled Bomb

Paul: Earthquake, three days later

Chad Perrin: Project Activity != Project Health

The Physicist: What is going on in a nuclear reactor, and what happens during a meltdown?

Roadwolf: My Ideal Computer Game

Steven Sam: Dickson Invariants

Sam Shah: Books! Books! Books!

Jeffrey Shallit: No Smoking Fail

Derek Sivers: There’s No Place Like Home

Three-Toed Sloth: Speaking Truth To Power About Weblogs, Or: How Not To Draw a Straight Line, The Distribution of Library Book Circulation Is Not a Power Law, or, Gauss and Man at Huddersfield

Derek Smith: Space Math Repetition Repetition

South Bend Seven: GE’s Taxes, Should I Have…, Arab league tries the ol’ one-two

David Speyer: How to think about Hodge decomposition

Branden Stone: Math, Communication, and Kids

Terence Tao: Bezout’s inequality, The shallow water wave equation and tsunami propagation

Luca Trevisan: Beauty and the Computer, CS261 Lecture 18: Using Expert Advice

Ulysses: Small Observations on Consumption Directed Toward Kids

Moor Xu: Happy Pi Day!

Kelly Yancey: More TSA Lunacy

Qiaochu Yuan: Pi is still wrong

Yan Zhang: Why Hopf Algebras

## Art/Photography

Mike Fenwick: Bike Lane Guys

Jessica Hagy: Just Pick One

Locohama: Earthquake Damage in my Neighborhood

Telefunker: Papeterie L et C (Belgium), Needle Factory (Germany)

## Music

Ibojima, Higher Energy

John Stanford, Ambient Music

Jamie Thompson: Ode to the Flying Buttress