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- Why Probability in Quantum Mechanics is Given by the Wave Function Squared
- Galaxies That Are Too Big To Fail, But Fail Anyway
- Particle Fever on iTunes
- Why the Many-Worlds Formulation of Quantum Mechanics Is Probably Correct
- Quantum Mechanics Open Course from MIT
- Physicists Should Stop Saying Silly Things about Philosophy
- Quantum Mechanics In Your Face
- The Common Core: How Bill Gates Changed America
- Jerry: I am a layperson here also, a Physician fascinated by cosmology, listened to all...
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- Ken: I have a bit of a far-out question. In the path integral approach to QM, we see...
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Category Archives: Science
One of the most profound and mysterious principles in all of physics is the Born Rule, named after Max Born. In quantum mechanics, particles don’t have classical properties like “position” or “momentum”; rather, there is a wave function that assigns … Continue reading
Dark matter exists, but there is still a lot we don’t know about it. Presumably it’s some kind of particle, but we don’t know how massive it is, what forces it interacts with, or how it was produced. On the … Continue reading
I have often talked about the Many-Worlds or Everett approach to quantum mechanics — here’s an explanatory video, an excerpt from From Eternity to Here, and slides from a talk. But I don’t think I’ve ever explained as persuasively as … Continue reading
Kids today don’t know how good they have it. Back when I was learning quantum mechanics, the process involved steps like “going to lectures.” Not only did that require physical movement from the comfort of one’s home to dilapidated lecture … Continue reading
The last few years have seen a number of prominent scientists step up to microphones and belittle the value of philosophy. Stephen Hawking, Lawrence Krauss, and Neil deGrasse Tyson are well-known examples. To redress the balance a bit, philosopher of … Continue reading
(Title shamelessly stolen from Sidney Coleman.) I’m back after a bit of insane traveling, looking forward to resuming regular blogging next week. Someone has to weigh in about BICEP, right? In the meantime, here’s a video to keep you occupied: … Continue reading
Greetings from the Big Apple, where the World Science Festival got off to a swinging start with the announcement of the Kavli Prize winners. The local favorite will of course be the Astrophysics prize, which was awarded to Alan Guth, … Continue reading
Today’s hot issue in my favorite corners of the internet (at least, besides “What’s up with Solange?”) is the possibility that the BICEP2 discovery of the signature of gravitational waves in the CMB might not be right after all. At … Continue reading
There’s no question that quantum fluctuations play a crucial role in modern cosmology, as the recent BICEP2 observations have reminded us. According to inflation, all of the structures we see in the universe, from galaxies up to superclusters and beyond, … Continue reading