When I launched the First Linkfest, I called it the first “Irregular” linkfest, and I tentatively stand by that, but besides having a handy excuse in case I later deviate, it definitely seems to be starting to look like a regular “every fortnight, on Saturday” kind of thing.
I am learning a lot from doing these linkfests. You’ll notice that starting with this one, I’m getting a little more organized. The main articles are now divided into “Technical” and “Non-Technical”. A word on the Technical articles: some of these are like math department colloquia. A grad student does not generally attend a math department colloquium/read a highly technical blog post to understand it, but rather in hopes of soaking something up through osmosis. So don’t feel bad if a lot of the posts under “Technical” seem to be written in a foreign language: a lot of them seem that way to me as well.
The previous linkfest was Linkfest III.
Scott Aaronson: Top 150 computer science events to be decided once and for all
Ken Baker: Seifert surfaces of dual knots
Tim Carlson: Categoricity for Patterns of Order 2 (PDF)
Matthew Compher: Arguing Semantics: the obelus, or division symbol: ÷
David Corfield: Report on Peter Freyd’s Lecture
Mark Eichenlaub: Visualizing Elementary Calculus: Graphs, Tangents, Derivatives
Rhys Jones, Patrick Haufe, Edward Sells, Pejman Iravani, Vik Olliver, Chris Palmer and Adrian Bowyer: RepRap – the replicating rapid prototyper
Emmanuel Kowalski: The other theorem of Burnside
Dick Lipton: Even Great Mathematicians Guess Wrong
Jeffrey Morton: Explanation, Fundamentals, an Agrippa-type Trilemma
Igor Ostrovski: Is two to the power of infinity more than infinity?
The Physicist: What is the evidence for the Big Bang?, Is the edge of a circle with infinite radius curved or straight?, As a consequence of relativity, objects becomes more massive when they’re moving fast. What is it about matter that causes that to happen?
Kenneth Regan: Could Euler Have Solved This?
Urs Schreiber: Axioms for Infinitesimal Cohesion
Mike Shulman: Enhanced 2-categories and Limits for Lax Morphisms
Noah Snyder: When confusions annihilate
Terence Tao: A proof of the Fredholm alternative
Ben Webster: Hall algebras are Grothendieck Groups
Scott Aaronson: Three museum reviews
Andrew Ash: Show Me The Code
Ruben Berenguel: Doing (Really) Nothing
Stuart Buck: Educational Waste
Kareem Carr: Don’t be too Risk Averse
Chazisop: Long-term access to information
James Colliander: NSERV Peer Review System is Broken for Mathematics
Timothy Gowers: Is Alternative Vote better than First Past The Post?
Alex Hoban: How to protest like the Japanese
Workshy Joe: Suddenly, Beards Are Everywhere
Khatzumoto: When the universal translators come
Tanya Khovanova: Fractional Voting Power
LabRat: Give Me Space
Izabella Laba: NSERV peer review system: broken and unreliable
Mark Lee: Nitpicking “Terminator”
Michael Lugo: On the inclusion of solutions in textbooks
Hunter Nuttall: The death of online poker
Orchid64: Will Miss #311: Free Calendars
Alex Papadimoulis: The Nondeterministic Hash
Remy Porter: Contract Termination
Sam Shah: Geometry
Photography and Pictures:
John Baez: Higher Structures in China II
URBEX Israel: Kfar Saba Flour Mill
Mikko Mononen: Temporary Obstacle Progress
Telefunker: Red Red Wine (Belgium)