{"version":"1.0","type":"link","title":"Christopher Cock - Newikis","description":"Christopher Cock was a London instrument maker of the 17th century, who supplied microscopes to Robert Hooke. These microscopes were compound lens instruments, which suffered greatly from spherical aberration.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/f/f1/Hooke_Microscope-03000276-FIG-4.jpg/1280px-Hooke_Microscope-03000276-FIG-4.jpg","thumbnail_width":1280,"thumbnail_height":1971}