Gorgeous Victorian mounters for microscope slides
Just as the telescope allowed us to look up and investigate the intricacies of celestial science for the first time, informing us that Earth is but a planet around a star among many, the microscope allowed us to look down (check out that TED-Ed video!), beyond the visible.
It has showed us not only how we function, at the most basic levels, but also that we are not so unlike or disconnected from nature as a whole. And that is a beautiful thing to learn.
Three cheers for vintage microscope slides!