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World's shortest explanation of Gödel's theorem
From the highly eclectic blog of Mark Dominus
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SF author Greg Egan reviews Avatar
Avatar Review by Greg Egan
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Reversing Tooth Decay with Good Diet
In the last post, I discussed the research of Drs. Edward and May Mellanby on the nutritional factors affecting tooth formation. Dr. Mellan...
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Training Rats as Traders
I crafted this skinner box exclusively for the rattraders' training; it is equipped with airconditioning and a music device. The picture above shows the special light signal that indicates the start of trading. (image by Nora Friedel)
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Steve Blank: Gravity Will be Turned Off
Part of marketing is the ability to communicate a message to thousands of people and convince them to believe your version of reality. When I was 19 I accidentally had a test run of my ability to d…
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Magenta Ain't A Color
All the colours in the light spectrum have complements that exist within the spectrum – except green. There seems to be some kind of imbalance. What is going on? Is green somehow being discriminated against? The light spectrum consists of a range of wavelengths of electromagnetic radiation. Red light has the longest…
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The New Science of Causation
It seems like each new day brings another one of those headlines: regular sleep “linked to” life expectancy, playing video games “associated with” surgical prowess, bullies “at risk” of becoming criminals, and “does breastfeeding reduce a baby’s blood pressure?” (the old rhetorical question gambit). Sometimes the…
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What You Learned About How Planes Fly Was Probably Wrong
So we all know how planes fly, right? The top of the wing is rounded and the bottom of the wing is more straight. Air takes longer to travel over the top of the
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Clocks, Kids, and General Relativity on Mt Rainier
In September 2005 (for the 50th anniversary of the atomic clock and 100th anniversary of the theory of relativity) we took several cesium clocks on a road trip to Mt Rainier; a family science experiment unlike anything you've seen before.
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Calorie restrictive eating for longer life? The story we didn’t hear in the news
Junkfood Science - truth about food and health
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How to destroy the earth
Preamble Destroying the Earth is harder than you may have been led to believe. You've seen the action movies where the bad guy threatens to destroy the Earth. You've heard people on the news claiming that the next nuclear war or cutting down rainforests or persisting in releasing...
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Python in the Scientific World
Yesterday I attended a biweekly meeting of an informal a UC Berkeley group devoted to Python in science (Py4Science), organized by Fernando ...
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A Non-Local Revolution
Paul Graham has recently argued for two points: first, that tech startups will continue to collect in Silicon Valley . Second, that startups may represent a new economic phase , replacing the corporate ladder of old . Now he’s suggesting that these two effects combined might lead to a very local economic revolution .
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Dark Flash Photography - UV/IR Flash Instead of Visible Light
Dark Flash Photography To be presented at SIGGRAPH 2009, New Orleans. Download PDF Dilip Krishnan Rob Fergus Vision, Learning and Graphics Group Computer Science Department Courant Institute of Mat…
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Nuclear Reactor Wall Charts
Super Phénix: Creys-Malville Nuclear Power Station, River Rhone (Sur le Rhone) Creys-Malville, Isere, France, Centrale Nucleaire Europeen...
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If You Want to Catch a Liar, Make Him Draw
A man accused of a crime is brought into a police interrogation room and sits down at an empty table. There’s no polygraph equipment in sight, and the typical two-cop questioning team isn’t in the…
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Visualizing the Fourth Dimension Using Color
Color can be used to indicate position in 4D space
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An analysis of the Buffalo air crash
(Ed. note: I was going to tell you some fascinating tales of my adventures in Kenya over the past few weeks, but that will have to wait…) Airplane crashes are almost always the result of a series o…