The Genetic Science Learning Center at the University of Utah has created an interactive feature that allows you to see the relative size of small objects, starting with a coffee bean and magnifying down to a carbon atom. Click on the link and use the sliding bar at the bottom of the application to zoom in.
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Radley Balko | Image: U.S. Department of Energy
The neatest thing is how the grandness of the universe and the minuteness of the proton look vaguely similar. Deep.