By what empirical means can a person determine whether he or she is presently awake or dreaming? Any conceivable test addressing this question, which is a special case of the classical metaphysical doubting of reality, must be statistical (for the same reason that empirical science is, as noted by Hume).
Every second, more than 10,000 high-energy particles – protons and atomic nuclei – rain down on every square meter of the Earth’s atmosphere.
Why is our universe built this way? We just don’t know.
Whatever begins to exist has a cause of its existence….
The Large Hadron Collider has now revealed another new and rather unusual particle. Here is everything you need to know about the pentaquark.
a Reply to Frank Wilczek’s Remarks about Physics
“Today, natural philosophy has not disappeared completely. It lives under disguise. Scientists write popular books, for the general educated public, professing to make their ideas about the science that they practice accessible to non-scientists. They use these books to speculate about the larger meaning of their discoveries for our understanding of the universe and of our place within it. They also have another audience, however: their colleagues in science, addressed under the disguise of popularization.”
Since shutting down in early 2013, the most powerful particle accelerator on the planet, the Large Hadron Collider (LHC), has been sitting dormant.
About a year and a half ago I published an in-depth critique of Lee Smolin’s Time Reborn. What follows is a Q&A with Lee Smolin, following the earlier post.
Quantum simulators are devices that actively use quantum effects to answer questions about model systems and, through them, real systems.