Monday, March 12, 2012

Forecast Accuracy from WeatherSpark

I've mentioned WeatherSpark in the past.  Which is not only my sole source of weather, but makes me compulsively check the weather several times a day.  While their standard graphs remain a great way to present forecasts, I just discovered they provide forecast accuracy reports.  They report four different sources of forecasts, and the accuracy report allows you to compare them (for a particular location).

http://weatherspark.com/forecast_accuracy/31876/2011/12/Mount-Holly-New-Jersey-United-States

While it provides an idea of which weather forecast source you should be trusting, it also provides some interesting insights in to forecast accuracy in general.  While temperature forecasts are pretty close, rain forecasts are not that great, and wind direction is basically impossible to predict.  Once you get out past 7 days, forecasts become less accurate than simply taking the average temperature of the past several years.

The averages page is also interesting:
http://weatherspark.com/averages/31876/Mount-Holly-New-Jersey-United-States

Sunday, March 11, 2012

The Personal Analytics of My Life

http://www.wired.com/epicenter/2012/03/opinion-wolfram-life-analytics/all/1
Every day — in an effort at “self awareness” — I have automated systems send me a few e-mails about the day before. I’ve been accumulating data for years and though I always meant to analyze it I never actually did. But with Mathematica and the automated data analysis capabilities we just released in Wolfram|Alpha Pro, I thought now would be a good time to finally try taking a look — and to use myself as an experimental subject for studying what one might call “personal analytics.”

Thursday, March 8, 2012

The Nuclear Game - An Essay on Nuclear Policy Making

An interesting set of essays on nuclear policy.

http://homepage.mac.com/msb/163x/faqs/nuclear_warfare_101.html
http://homepage.mac.com/msb/163x/faqs/nuclear_warfare_102.html
http://homepage.mac.com/msb/163x/faqs/nuclear_warfare_103.html
When a country first acquires nuclear weapons it does so out of a very accurate perception that possession of nukes fundamentally changes it relationships with other powers. What nuclear weapons buy for a New Nuclear Power (NNP) is the fact that once the country in question has nuclear weapons, it cannot be beaten. It can be defeated, that is it can be prevented from achieving certain goals or stopped from following certain courses of action, but it cannot be beaten. It will never have enemy tanks moving down the streets of its capital, it will never have its national treasures looted and its citizens forced into servitude. The enemy will be destroyed by nuclear attack first. A potential enemy knows that so will not push the situation to the point where our NNP is on the verge of being beaten. In effect, the effect of acquiring nuclear weapons is that the owning country has set limits on any conflict in which it is involved. This is such an immensely attractive option that states find it irresistible.

Monday, March 5, 2012

Q: Do you need faith to believe in science?

http://www.askamathematician.com/2012/01/q-do-you-need-faith-to-believe-in-science/
It’s easy to see why science seems like just some wacky new belief system that you have to have faith in to believe.  The difference is, if you don’t believe it (and you’re properly motivated), then you can go out and test it. To be fair, most people do take science on faith.  It’s much harder to test things yourself, than it is to trust that the kind of people who can figure out how to fly around in space and build fancy computers have things pretty well sorted out.  But keep in mind; the option is there.

Friday, March 2, 2012

Bridging the Chasm between Two Cultures

http://www.csicop.org/si/show/bridging_the_chasm_between_two_cultures
From a vantage point outside the New Age culture, my culture’s disavowal of emotions and the intellect may seem very strange and nearly inexplicable. Nevertheless, it is a very real cultural component that must be understood and considered if any useful communication is going to occur. If we want to successfully communicate with someone, we've got to understand not just their language, but the cultural context from which their language springs. From what I've seen in both the New Age and the skeptical cultures, this understanding is absent. I certainly didn't understand the skeptical culture until I spent real time considering it as a culture—and I know from my reading that most people in the skeptical culture don't understand the New Age culture at all. As a result, the yelling between our cultures just becomes louder while the real communication falls into the chasm that divides us. In all the din, people in my culture hear what they deem to be hyper-intellectual and emotionally charged attacks upon their cherished beliefs, while people in your culture hear what they deem to be wishful thinking, scientific illiteracy, and emotionally charged salvos in defense of mere delusions.

Thursday, March 1, 2012

What facts support evolution?

http://wiki.answers.com/Q/What_facts_support_evolution

John Stossel's Illegal Everything

http://www.youtube.com/watch?v=OuIahM4mB-8

Posting Fox News clips.  So, it has come to this.

Public Key Cryptography Explained With Colors


Imagine you wanted to communicate securely with someone you had never met before.  How could you exchange a private key to use while you assume your communications are being intercepted.  This is the problem of public key encryption.  It is an interesting problem to think about.  This video does a great job of explaining the process that takes place every time you visit a site that starts with https.