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Visualisation of the expansion of IKEA
Watch how IKEA expanded around the world in this data visualisation
New
The latest blog posts to take off on Hacker News. 2,038 posts.
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Analysis of suspected MH370 pings recorded by Ocean Shield
So this is a bit of a deviation from my normal MATLAB oriented posts. In-fact MATLAB was not used once in this analysis! I've been followi...
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American Chemical Society bans university after "spider-trap" is clicked
The society (closed access) journal ‘Copeia’ also has these spider trap links in it’s HTML, e.g. on this contents page: http://www.asihcopeiaonline.org/toc/cope/2013/4
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Why are roller coaster loops not circular?
Why are the loops on roller coasters never circular?
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How a Light Saber Works
[ Metanote: This explanation arose out of a lunch-time discussion with a colleague who claimed a light saber could not exist since the light beam it emits could not just stop in mid-air after 75 cm. I thank this colleague for the challenge. ]
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Machines are better referees than humans but we’ll be sued if we use them
Andy Howlett and Mark Williamson in our group have been developing fantastic software. It can read the whole scientific literature and analyse it in minute detail. One of the things we are starting with is chemistry. ChemVisitor (part of AMI2) can read chemical structure diagrams and chemical names and work out what…
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Nootropics Survey Results And Analysis
In case you are just joining us: nootropics are substances which purportedly improve mental functioning with relatively few side effects when used responsibility. Caffeine is a good example. It imp…
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95% of climate models agree: the observations must be wrong
I’m seeing a lot of wrangling over the recent (15+ year) pause in global average warming…when did it start, is it a full pause, shouldn’t we be taking the longer view, etc.
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The Weight of Rain
My talk at Visualized.
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The Great Ptolemaic Smackdown: TABLE OF CONTENTS
1. The Great Ptolemaic Smackdown 2. The Great Ptolemaic Smackdown: Down for the Count 3. The Great Ptolemaic Smackdown: The Great Gali...
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Lethal Neutrinos
How close would you have to be to a supernova to get a lethal dose of neutrino radiation?
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Terry Tao on how to compute non-converging infinite sums (2010)
The Riemann zeta function $latex {\zeta(s)}&fg=000000$ is defined in the region $latex {\hbox{Re}(s)>1}&fg=000000$ by the absolutely convergent series $latex \displaystyle \zeta(s) = \su…
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The sum of all the positive integers is not -1/12
I haven't been blogging recently because my new startup is taking up all my time, but someone needs to stand up and say the emperor has no c...
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Sequence of Events in the Cockpit on Asiana Flight 214
Last week, the NTSB held the Asiana Flight 214 Investigative Hearing. On the 6th of July 2013, Asiana Flight 214, a scheduled passenger flight from Incheon, South Korea to San Francisco, CA, crashe…
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H5N1
Most of the time, we worry far too much about tail risk. We worry about terrorist attacks and necrotizing fasciitis, but not much about heart disease or car crashes. But in 2011, 17 US citizens...
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What Gives Gold that Mellow Glow? (2006)
What Gives Gold that Mellow Glow?
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Do-it-yourself EEG, EKG, and EMG
Do-it-yourself EEG, EKG, and EMG Source: https://sites.google.com/site/chipstein/home This site features things related to my interests...
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The Big Data Brain Drain: Why Science is in Trouble
Update, August 2014: see Hacking Academia , my most recent reflection on this subject.
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An Intuitive (and Short) Explanation of Bayes’ Theorem
Bayes’ theorem was the subject of a detailed article. The essay is good, but over 15,000 words long — here’s the condensed version for Bayesian newcomers like…
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LSD microdosing: a randomized, blind self-experiment
Self-experiment with sub-psychedelic doses of LSD; no benefit
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Richard Feynman: Cargo Cult Science (1974)
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