Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. We live our entire lives surrounded by them. They slam into us ...

The film "Introduction to Holography" explains the principles of holography, focusing on how it differs from traditional photography by creating three-dimensional images. It discusses the role of wave ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What if you could listen to music or a podcast without headphones or earbuds and without ...

It’s a question I’m sure was keeping you up at night: can you make an object spin with a sound wave? The answer, generally speaking, used to be no. Now, though, mechanical engineers have taken a look ...

Hyundai’s speakers adjust their angle to minimise sound wave interference. Credit: Hyundai Mobis. Hyundai Mobis has developed a new movable sound system that is engineered to synchronise with the ...

"Sound waves power new advances in drug delivery and smart materials." ScienceDaily. www.sciencedaily.com / releases / 2020 / 11 / 201124101029.htm (accessed February 2, 2026).