If you’re new to Soul Physics, try some of our classic posts! The following posts received either a lot of traffic or a lot of comments (or both) in 2009.…
Soul Physics: Best of 2009
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Ice water on closed timelike curves
Today, let’s kick off our shoes and relax our standards for what counts as a reasonable spacetime. Let’s talk about spacetimes allowing for a certain kind of time travel, called…
2009 Nobel Laureates in Physics
The 2009 Nobel Laureates in Physics have been announced! This year the award honors pioneers in information technology. Half the prize is going to Charles Kao (Standard Tel Labs), and…
Visualize a Wave Function
Can you visualize a normalized wave function on spacetime? Let’s try with a simple example. The role of a wave function is to assign a complex number to each point…
Galileo and the Physics of Skydiving
During a visit to Skydive, PA yesterday, I noticed jumpmaster Jim tightening a corset-like weight belt onto his abs. “Jim, your figure looks so refined,” I commented. Jim sneered. “I’ve…