How does a fjord in the Arctic make the entire earth sound like a tuning-fork? The pulse’s frequency is roughly 1 beat every ...

Perhaps the most iconic instrument in modern rock is the guitar. It's really just a bunch of strings stretched across a board, which you can strum to make awesome tunes, thanks to the physics of waves ...

Here is a simple frequency doubler circuit that produces a square wave output with a precise 50 percent duty cycle. There are similar circuits in the literature [References 1, 2, 3] which require ...

A team of Caltech researchers is proposing a radical new technique for killing cancer cells using low-intensity ultrasound waves. The preliminary research is still at an incredibly early stage but ...

Researchers have found the first direct evidence of a “background” of gravitational waves in the universe — a sign that gravitational waves from slowly merging pairs of supermassive black holes, or ...

Does light behave more like a particle, or like a wave? Today we know the surprising answer. Here's why it took so long to get there. When you purchase through links on our site, we may earn an ...