Actually, if in a bright room/location if you tear up your eyes, lie on your back and adjust your eye lids you can see micro organisms with the naked. My feeli

Actually, if in a bright room/location if you tear up your eyes, lie on your back and adjust your eye lids you can see micro organisms with the naked. My feeling is that this phenomenon was the source of Leeuwenhoek's inspiration. Common sense (an unreliable guide at best) suggests that telescopes rather than microscopes ought to have been invented first.