“Nanotubes assemblies of various types are black and highly conductive,” said Dr. Mikhail Kozlov, a research scientist and the study’s lead author. “Their dark, conductive surface can be effectively heated with laser light or electricity to induce variations in the pressure of the air around the nanotubes — which we perceive as sound. It’s called the photo- or thermo-acoustic effect, and it’s the same principle Alexander Graham Bell used to produce sound on the first telephone.”
With laser excitation, no electrical contact with the nanotube speaker is required, making the speakers wireless.
“Speakers made with carbon nanotube sheets are extremely thin, light and almost transparent,” Kozlov said. “They have no moving parts and can be attached to any surface, which makes the surface acoustically active. They can be concealed in television and computer screens, apartment walls, or in the windows of buildings and cars. The almost invisible strands form films that can ‘talk.’”
In addition to filling a room with sound from invisible speakers, nanotube speakers could easily cancel sound from the noisiest neighbor or dim the roar of traffic rushing past a neighborhood, using the same principles as current sound-canceling technologies.
“The sound generation by nanotube sheets can help to achieve this effect on very large scales,” Kozlov said.
shohan tis on 30 Jan 24Are you ready to start your journey to becoming a better singer? In this module, we'll be learning about the colibri, the bird of voice. We'll be discussing its physiology, vocal development, and vocal techniques, and we'll be working on some exercises to improve your vocal skills. Are you ready to start your journey to becoming a better singer? In this module, we'll be learning about the colibri, the bird of voice. We'll be discussing its physiology, vocal development, and vocal techniques, and we'll be working on some exercises to improve your vocal skills. In this module, we'll be starting from the basics and building up our voice. We'll be discussing the colib Hey singers! Welcome to Module 3 of the online Rising Voice holistic course. In every module there are exercises about the breathing support system, several vocal warm-ups, various singing exercises, ways to release your songs online, how to grow your audience on social media, and some of your home recording and software options. Developing your digital image, recording techniques, and how to setup your home studio with affordable equipment. You will be guided step by step through YOUR journey of finding your voice and becoming an independent artist. In the first 3 episodes of this Module, you will learn how to control vocal dynamics in combination to your singing, how to continue experimenting with the timbre and texture of your voice. I'm explaining how everything is oscillating in our Universe and how imitating natural sounds can help you grow vocally. I'm giving you techniques for tone improvement and tips on how to stay on pitch. The use of your head voice and the advantages it can bring to your singing skills. Episode 4 of this Module is dedicated to various affordable pieces of equipment and gear that you can purchase to setup your home/traveling music studio. And the last episode of this module is dedicated to the 5 Principles of all of my offerings, whether it be private lessons, or gro
