div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer20220308235b397fb27f8b9a40428e9cc7html5page1jpg target=_blank img data-url=-the-planar-ribbon-theeter-with-its-ultra-thin-filmaoil-design-forms-a-near-perfecthtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: The planar ribbon theeter with its ultra-thin filmåoil design forms a near-perfect point source with virtually hemispherical dispersion The circular membrane measur- ing only loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer20220308235b397fb27f8b9a40428e9cc7html5thumbnails1jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer20220308235b397fb27f8b9a40428e9cc7html5page2jpg target=_blank img data-url=-the-planar-ribbon-theeter-with-its-ultra-thin-filmaoil-design-forms-a-near-perfecthtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: The planar ribbon theeter with its ultra-thin filmåoil design forms a near-perfect point source with virtually hemispherical dispersion The circular membrane measur- ing only loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer20220308235b397fb27f8b9a40428e9cc7html5thumbnails2jpg width=140 height=200 adivdiv