Similar to the human larynx, a bird’s vocal organ – or syrinx – consists of folds of tissue in the passage that connects the lungs to the throat. As the bird expels air, these folds open and close to ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

An idealized one-degree-freedom isolator, based on a simple harmonic oscillator, is shown in Figure 1. The isolator consists of three parts. The first is the isolated mass (M), which represents the ...

The hashtag makes clear that this was a reference to the show Marvel's Agents of S.H.I.E.L.D., which isn't something I watch regularly. It seems that in last week's episode, a particular magic sound ...

Introduction – Because of their typically fast edge rates, crystal oscillators can generate a large number of high-order harmonics. Figure 1 indicates a generalized trapezoidal digital signal. The ...