A First Course in String Theory

Rather than speculate on the ideas that might have developed in the absence of string theory, we can celebrate the remarkable insights that have emerged from it. It has explained, for example, why black holes have entropy and temperature. It has also demonstrated a surprising fact: theories of strong nuclear forces are equivalent to theories of gravity. Over the last two months, several new papers use string theory to describe the motion of quarks in the plasma created by the Relativistic Heavy Ion Collider at Brookhaven! Not bad for a theory whose critics say is pie in the sky.

— Barton Zwiebach: a letter to the editor

2010.08.25 Wednesday ACHK

Bureaucracy 2


The only thing that saves us from the bureaucracy is inefficiency. An efficient bureaucracy is the greatest threat to liberty.

* Eugene McCarthy, quoted in Time magazine, 12 February 1979




2010.08.25 Wednesday ACHK

防止被騙系統 3

讀心術 5

自然定律 6





— Me@2010.08.25

It has often and confidently been asserted, that man’s origin can never be known: Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science.

— Charles Darwin

2010.08.25 Wednesday (c) All rights reserved by ACHK