Now, hear me out. I’m sure we’ve all heard about the de Broglie’s relation (or probably wave-particle duality) which related wavelength, classically associated with waves, with the…… Read more “Symmetry and de Broglie’s “wish””

Mass, uh? This is an interesting topic. The classical definition of mass is essentially how much matter is contained in a body. Like how much stuff is…… Read more “So on Special Relativity: What is mass, according to physics?”