Ethan Siegel on his Starts With a Bang blog has an interesting review of Paul Halpern's new book on Einstein and Schrodinger, and their refusal to allow the implications of quantum physics to dissuade them from idea that the universe is strictly deterministic. It's an interesting post and one that I recommend reading in full. … Continue reading Einstein, Schrodinger, and the reluctance to give up hard determinism
Tag: Albert Einstein
A debate on quantum mechanics interpretations
"Anyone who is not shocked by quantum theory has not understood it." --Niels Bohr "If you think you understand quantum mechanics, you don't understand quantum mechanics." --Richard Feynman Quantum mechanics are utterly bizarre. Quantum particles behave like spread out waves, until their position is measured, when they suddenly behave like a particle with definite position. The … Continue reading A debate on quantum mechanics interpretations
The theoretical preference for a timeless and eternal reality
Ethan Siegel has an excellent post up contemplating the various models of the timeline of the universe. It’s only human to ask the most fundamental of all questions: where did all this come from? And we like to think we know the answer; it all came from the beginning. But if you think about it … Continue reading The theoretical preference for a timeless and eternal reality
Max Tegmark posts his chapter on cosmic inflation online
If you enjoyed my write up on Tegmark's Level II multiverse, you might enjoy this guest post that he makes on Sean Carroll's blog, which includes a link to the chapter on inflation from his book, including those visual aids I referenced! Since the BICEP2 breakthrough is generating such huge interest in inflation, I’ve decided … Continue reading Max Tegmark posts his chapter on cosmic inflation online
Tegmark’s Level III Multiverse: The many worlds interpretation of quantum mechanics
I recently finished reading Max Tegmark’s latest book, ‘Our Mathematical Universe‘, about his views on multiverses and the ultimate nature of reality. This is the third in a series of posts on the concepts and views he covers in the book. The previous entries are: Tegmark’s Level I Multiverse: infinite space Tegmark’s Level II Multiverse: bubble universes Tegmark … Continue reading Tegmark’s Level III Multiverse: The many worlds interpretation of quantum mechanics
PHD Comics: Cosmic Inflation Explained
So, even though I already linked to two sources about cosmic inflation this week, this is good enough that I'm also going to throw it in. It's fascinating to me that the large scale structure of our universe is ultimately caused by quantum fluctuations in the earliest moments of the big bang. Click through for … Continue reading PHD Comics: Cosmic Inflation Explained
Primers on detecting primordial gravity waves and cosmic inflation
First, Minute Physics takes a shot at explaining what the BICEP2 team actually found and how it relates to gravitational waves. I think I'm going to have to watch this a second time to pick up everything. http://www.youtube.com/watch?v=4IlBNJbCzfk And Ethan Siegel has an in-depth discussion of cosmic inflation at his Starts With A Bang site.
Quantum Entanglement Explained
A nice video. I've read about quantum decoherence and entanglement several times, but seeing it animated helped. At least for me. http://www.youtube.com/watch?v=1zD1U1sIPQ4 Confused by how particles can be in two places at once? Wondering how particles can instantly communicate with each other no matter what the distance? Quantum physics is a field of study that … Continue reading Quantum Entanglement Explained
Falsifiability is useful, but a matter of judgment
Our discussions last week on Jim Baggott's book, 'Farewell to Reality', and Sean Carroll's Edge response, left me pondering falsifiability, the idea that theories should be falsifiable in order to be considered science. Falsifiability is a criteria identified by the philosopher Karl Popper. Popper was arguing against a conception held at the time by logical … Continue reading Falsifiability is useful, but a matter of judgment
Science, philosophy, and caution about what we think we know
What is the difference between science and philosophy? While there are enterprises that are clearly in one or the other, the dividing line isn't always a sharp one. Science grew out of philosophy, particularly natural philosophy. Some would say that science is itself a type of philosophy. But what is the difference between what we … Continue reading Science, philosophy, and caution about what we think we know
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