"David J. Griffiths, Introduction to Quantum Mechanics (2nd ed., 2016), pp. 3–4"

"One of the fundamental concepts of mechanics is that of a particle. By this we mean a body whose dimensions may be ne…"

"There were two things that especially attracted me to the ideas of renormalization and quantum field theory. One of t…"

"There has always been a good deal of mystery surrounding the pinch harmonic, or, as hip players like to call it, “pic…"

"In short, pick squealing, or pinch harmonics is part of the reason why a lot of people started using copious amounts …"

"The way I and most guitarists produce a pinch harmonic is to grasp the pick close to its pointed tip with your thumb …"

"When you pick the string just right, a higher pitch other than the fretted note is sounded. This higher pitch is an o…"

"2. Are there any new elementary scalars not yet discovered with masses below the mass of the -like Higgs boson? For e…"

"The last few decades have provided abundant evidence for physics beyond the two standard models of particle physics a…"

"With the discovery of the Higgs boson, the next burning question at the LHC is why its mass is so low. Nobody knows t…"