div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=the-microphone-579631cf0c82fhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: The Microphone loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentssitereader035viewer20220803205750678a1a28ab0f07ac00d2html5thumbnails1jpg width=140 height=200 divp© 1879 Nature Publishing Grouppdiv