Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Sorry for your inconvenience! I will keep it in mind.Why not just Google before asking here? Then ask questions about what you don't understand? That is what "learning" is all about, it's not just a name to use online.
https://en.wikipedia.org/wiki/Passive_radiator_(speaker)