An article that claims that researchers have not proven that SARS-CoV-2 causes COVID-19 uses outdated criteria and presents incomplete facts to make its arguments. The article focuses on how ...

The measurement postulate is crucial to quantum mechanics. If we measure a quantum system, we can only get one of the eigenvalues of the measured observable, such as position, energy and so on, with a ...

In February, I wrote about Euclid's parallel postulate, the black sheep of the big, happy family of definitions, postulates, and axioms that make up the foundations of Euclidean geometry. I included ...

In the double slit experiment, quantum objects such as photons or electrons are beamed through two closely spaced slits. Since we don't know which slit each object passes through, the possibilities ...