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Tag Archives: math

Saul Griffith, “Climate Change Recalculated”

According to Saul’s calculations, in order to reach a goal of 450 ppm of atmospheric carbon dioxide in time to limit a global rise in temperature to 2 degrees C., we’ll have to reduce the amount of burned fossil fuels to 3 terawatts (of power). That means we’ll need to replace 11.5 terawatts with new […]

Six Degrees of Separation/Connection may be in trouble. Why can’t 6/degrees find Osama bin laden?

Six Degrees has problems ScienceFriday.com’s version Chances are you’ve heard of the ‘small world’ idea of six degrees of separation. But is it correct? The idea traces back to an experiment begun in 1967 by Stanley Milgram, in which he tried to trace how many acquaintances it would take to pass a letter between two […]

Bloomberg: CPI Inflation Data is a “Lie”

We have long railed against the absurdity of the CPI data. The ridiculous adjustments, the lack of correlation between CPI prices and reality… More

Haber-Bosch process has often been called the most important invention of the 20th century

this ties in with the earlier post on Peak Phosphorus from Juergen Schmidhuber’s site Since age 15 or so Prof. Jürgen Schmidhuber’s main scientific ambition has been to build an optimal scientist, then retire. In 2028 they will force him to retire anyway. By then he shall be able to buy hardware providing more raw […]

Why Aren’t There Any Millionaire’s in Russia? I thought everyone got 1000 shares of RussPetrol?!

Moscow’s suburb for billionaires By Rupert Wingfield-Hayes BBC News, Moscow Most people in Britain are now familiar with the scruffy, boyish and invariably unshaven features of Roman Abramovich, owner of Chelsea football club, and Russia’s most famous billionaire. This week we learned that Mr Abramovich is one of a growing list of hyper-rich Russians. According […]

Mysteries of Percents

Suppose inflation was 11% last year, and 11% this year. Is that a total inflation of 22% for the two years? Consider a sample of purchases costing $100. After the first year, 11% inflation means you will pay 11% more for the same items. 11% of $100 is $11. Therefore, you will pay $111 by […]

A Pretty Good Shot

In the September 4, 2006 issue of Space News, Thomas Christie, the former chief weapons tester at the Pentagon, was quoted as saying the Ground Based Mid-course Defense System “likely would have less than a 20% chance of shooting down an incoming missile from North Korea”. When asked his take on the system’s effectiveness, the […]

Preparing Math Students for a World of Collapse

I have been a math teacher since 1991 when I taught my first algebra class at Philadelphia Community College. I had just received my Bachelors degree in Physics. Bolstered by my girlfriend Val’s seemingly cushy part-time employment as a math instructor, and the fact that the math department was in quick need of an algebra […]