div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=adobe-photoshop-pdf-microscope-world-10-fun-facts-history-microscope-the-earliesthtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Adobe Photoshop PDF - Microscope World · 10 Fun Facts History Microscope The earliest microscopes were known as flea glasses because they were used to study small insects A father-son loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentssitereader036viewer20220816055bab11d009d3f2cf6d8dac2chtml5thumbnails1jpg width=140 height=200 divdiv